fix: keystore write error fallback

2026-07-28 03:22:01 +03:00 · 2026-05-15 17:14:07 +03:00
308 changed files with 4096 additions and 18851 deletions
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -18,14 +18,11 @@ jobs:
      - uses: dorny/paths-filter@v3
        id: filter
        with:
+          base: ${{ github.event.before }}
          filters: |
            recipes:
              - 'recipes/**'
              - 'conanfile.py'
-              - '.github/workflows/deploy.yml'
-              - 'cmake/conan_provider.cmake'
-              - 'cmake/platform_settings.cmake'
-              - 'cmake/recipes_bootstrap.cmake'

  Bake-Prebuilts-Linux:
    runs-on: ubuntu-latest
@@ -43,7 +40,7 @@ jobs:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build dependencies'
      shell: bash
@@ -53,11 +50,9 @@ jobs:
        done

    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------
@@ -103,7 +98,7 @@ jobs:
        python-version: 3.14
      
    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Install system packages'
      run: sudo apt-get install libxkbcommon-x11-0 libsecret-1-dev
@@ -123,7 +118,7 @@ jobs:
    - name: 'Upload installer artifact'
      uses: actions/upload-artifact@v7
      with:
-        path: deploy/build/AmneziaVPN_*_linux_x64.run
+        path: deploy/build/AmneziaVPN-*-Linux.run
        archive: false
        retention-days: 7

@@ -154,17 +149,15 @@ jobs:
    - uses: ilammy/msvc-dev-cmd@v1

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build dependencies'
-      run: cmake -S . -B build -DPREBUILTS_ONLY=1
+      run: cmake -S . -B build -G "Visual Studio 17 2022" -DPREBUILTS_ONLY=1
    
    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------
@@ -236,7 +229,7 @@ jobs:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build project'
      shell: cmd
@@ -249,31 +242,27 @@ jobs:
    - name: 'Upload WIX installer artifact'
      uses: actions/upload-artifact@v7
      with:
-        path: deploy/build/AmneziaVPN_*_windows_x64.msi
+        path: deploy/build/AmneziaVPN-*-win64.msi
        archive: false
        retention-days: 7
      
    - name: 'Upload IFW installer artifact'
      uses: actions/upload-artifact@v7
      with:
-        path: deploy/build/AmneziaVPN_*_windows_x64.exe
+        path: deploy/build/AmneziaVPN-*-win64.exe
        archive: false
        retention-days: 7

 # ------------------------------------------------------

  Bake-Prebuilts-iOS:
+    runs-on: macos-latest
    needs: Detect-Changes
    if: needs.Detect-Changes.outputs.recipes_changed == 'true'

    strategy:
      matrix:
-        xcode-version: [26.0, 26.4]
-        include:
-          - xcode-version: 26.4
-            os: macos-26
-
-    runs-on: ${{ matrix.os || 'macos-latest' }}
+        xcode-version: [26.0]

    steps:
    - uses: actions/checkout@v4
@@ -290,17 +279,15 @@ jobs:
        xcode-version: ${{ matrix.xcode-version }}

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build dependencies'
      run: cmake -S . -B build -G Xcode -DPREBUILTS_ONLY=1 -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos
    
    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------
@@ -357,7 +344,7 @@ jobs:
    - name: 'Setup xcode'
      uses: maxim-lobanov/setup-xcode@v1
      with:
-        xcode-version: '26.0'
+        xcode-version: '26.1'

    - name: 'Install desktop Qt'
      uses: jurplel/install-qt-action@v3
@@ -389,7 +376,7 @@ jobs:
        python-version: 3.14

    - name: 'Install deps'
-      run: pip install "conan==2.28.0" jsonschema jinja2
+      run: pip install "conan==2.26.2" jsonschema jinja2

    - name: 'Build project'
      env:
@@ -407,21 +394,14 @@ jobs:
 # ------------------------------------------------------

  Bake-Prebuilts-MacOS:
+    runs-on: macos-latest
+
    needs: Detect-Changes
    if: needs.Detect-Changes.outputs.recipes_changed == 'true'

    strategy:
      matrix:
-        xcode-version: [16.2, 16.4, 26.4]
-        include:
-          - xcode-version: 16.2
-            os: macos-15
-          - xcode-version: 16.4
-            os: macos-15
-          - xcode-version: 26.4
-            os: macos-26
-
-    runs-on: ${{ matrix.os || 'macos-latest' }}
+        xcode-version: [16.2, 16.4]

    steps:
    - uses: actions/checkout@v4
@@ -438,23 +418,21 @@ jobs:
        xcode-version: ${{ matrix.xcode-version }}

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build dependencies'
      run: cmake -S . -B build -G Xcode -DPREBUILTS_ONLY=1
    
    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------

  Build-MacOS:
-    runs-on: macos-15
+    runs-on: macos-latest

    needs: Bake-Prebuilts-MacOS
    if: ${{ always() }}
@@ -501,7 +479,7 @@ jobs:
    - name: 'Setup xcode'
      uses: maxim-lobanov/setup-xcode@v1
      with:
-        xcode-version: '26.3.0'
+        xcode-version: '16.2.0'

    - name: 'Install Qt'
      uses: jurplel/install-qt-action@v4
@@ -524,15 +502,13 @@ jobs:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build project'
      env:
        QT_INSTALL_DIR: ${{ runner.temp }}
        CODESIGN_SIGNATURE: ${{ secrets.MAC_SIGNER_ID }}
        CODESIGN_INSTALLER_SIGNATURE: ${{ secrets.MAC_INSTALLER_SIGNER_ID }}
-        CODESIGN_KEYCHAIN: ${{ steps.setup-keychain.outputs.keychain-path }}
-        CODESIGN_INSTALLER_KEYCHAIN: ${{ steps.setup-keychain.outputs.keychain-path }}
        NOTARYTOOL_TEAM_ID: ${{ secrets.MAC_TEAM_ID }}
        NOTARYTOOL_EMAIL: ${{ secrets.APPLE_DEV_EMAIL }}
        NOTARYTOOL_PASSWORD: ${{ secrets.APPLE_DEV_PASSWORD }}
@@ -542,28 +518,20 @@ jobs:
    - name: 'Upload installer artifact'
      uses: actions/upload-artifact@v7
      with:
-        path: deploy/build/AmneziaVPN_*_macos_x64.pkg
+        path: deploy/build/AmneziaVPN-*-Darwin.pkg
        archive: false
        retention-days: 7

 # ------------------------------------------------------

  Bake-Prebuilts-MacOS-NE:
+    runs-on: macos-latest
    needs: Detect-Changes
    if: needs.Detect-Changes.outputs.recipes_changed == 'true'

    strategy:
      matrix:
-        xcode-version: [16.2, 16.4, 26.4]
-        include:
-          - xcode-version: 16.2
-            os: macos-15
-          - xcode-version: 16.4
-            os: macos-15
-          - xcode-version: 26.4
-            os: macos-26
-
-    runs-on: ${{ matrix.os || 'macos-latest' }}
+        xcode-version: [16.2, 16.4]

    steps:
    - uses: actions/checkout@v4
@@ -580,23 +548,21 @@ jobs:
        xcode-version: ${{ matrix.xcode-version }}

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build dependencies'
      run: cmake -S . -B build -G Xcode -DPREBUILTS_ONLY=1 -DMACOS_NE=TRUE
    
    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------

  Build-MacOS-NE:
-    runs-on: macos-26
+    runs-on: macos-latest

    needs: Bake-Prebuilts-MacOS-NE
    if: ${{ always() }}
@@ -620,12 +586,6 @@ jobs:
      PREM_V1_ENDPOINT: ${{ secrets.PREM_V1_ENDPOINT }}

    steps:
-    - name: 'Get sources'
-      uses: actions/checkout@v4
-      with:
-        submodules: 'true'
-        fetch-depth: 10
-
    - uses: ./.github/actions/apple-setup-provisioning-profile
      with:
        provisioning_profile_base64: ${{ secrets.MAC_APP_PROVISIONING_PROFILE }}
@@ -663,13 +623,19 @@ jobs:
          go install golang.org/x/mobile/cmd/gomobile@latest
          gomobile init

+    - name: 'Get sources'
+      uses: actions/checkout@v4
+      with:
+        submodules: 'true'
+        fetch-depth: 10
+
    - name: 'Setup python'
      uses: actions/setup-python@v6
      with:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Build project'
      run: |
@@ -705,7 +671,7 @@ jobs:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Setup Android SDK'
      uses: android-actions/setup-android@v4
@@ -730,11 +696,9 @@ jobs:
        done

    - name: 'Authorize in remote'
-      if: github.ref == 'refs/heads/dev'
      run: conan remote login amnezia "${{ secrets.CONAN_USER }}" -p "${{ secrets.CONAN_PASSWORD }}"

    - name: 'Upload baked prebuilts'
-      if: github.ref == 'refs/heads/dev'
      run: conan upload -r amnezia "*" -c

 # ------------------------------------------------------
@@ -748,7 +712,7 @@ jobs:
    env:
      ANDROID_PLATFORM: android-28
      NDK_VERSION: 27.0.11718014
-      QT_VERSION: 6.10.3
+      QT_VERSION: 6.10.1
      QT_MODULES: 'qtremoteobjects qt5compat qtimageformats qtshadertools'
      PROD_AGW_PUBLIC_KEY: ${{ secrets.PROD_AGW_PUBLIC_KEY }}
      PROD_S3_ENDPOINT: ${{ secrets.PROD_S3_ENDPOINT }}
@@ -842,7 +806,7 @@ jobs:
        python-version: 3.14

    - name: 'Install conan'
-      run: pip install "conan==2.28.0"
+      run: pip install "conan==2.26.2"

    - name: 'Decode keystore secret to file'
      env:
@@ -930,4 +894,3 @@ jobs:
        run: | 
          echo "Pull request:" >> $GITHUB_STEP_SUMMARY
          echo "[[#${{ fromJSON(steps.pull_request.outputs.data)[0].number }}] ${{ fromJSON(steps.pull_request.outputs.data)[0].title }}](${{ fromJSON(steps.pull_request.outputs.data)[0].html_url }})" >> $GITHUB_STEP_SUMMARY
-
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,6 +7,9 @@
 [submodule "client/3rd/amneziawg-apple"]
 	path = client/3rd/amneziawg-apple
 	url = https://github.com/amnezia-vpn/amneziawg-apple
+[submodule "client/3rd/QSimpleCrypto"]
+	path = client/3rd/QSimpleCrypto
+	url = https://github.com/amnezia-vpn/QSimpleCrypto.git
 [submodule "client/3rd/qtgamepad"]
 	path = client/3rd/qtgamepad
 	url = https://github.com/amnezia-vpn/qtgamepad.git
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

 set(PROJECT AmneziaVPN)
-set(AMNEZIAVPN_VERSION 5.0.0.2)
+set(AMNEZIAVPN_VERSION 4.8.15.4)

 set(QT_CREATOR_SKIP_PACKAGE_MANAGER_SETUP ON CACHE BOOL "" FORCE)
 set(CMAKE_PROJECT_TOP_LEVEL_INCLUDES
@@ -18,9 +18,9 @@ project(${PROJECT} VERSION ${AMNEZIAVPN_VERSION}
        HOMEPAGE_URL "https://amnezia.org/"
 )

-# trigger conan to kick off `conan install` globally
-find_package(OpenSSL REQUIRED)
 if (PREBUILTS_ONLY)
+    # trigger conan to kick off `conan install`
+    find_package(OpenSSL REQUIRED)
    return()
 endif()

@@ -28,7 +28,7 @@ string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
 set(RELEASE_DATE "${CURRENT_DATE}")

 set(APP_MAJOR_VERSION ${CMAKE_PROJECT_VERSION_MAJOR}.${CMAKE_PROJECT_VERSION_MINOR}.${CMAKE_PROJECT_VERSION_PATCH})
-set(APP_ANDROID_VERSION_CODE 2135)
+set(APP_ANDROID_VERSION_CODE 2120)

 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
    set(MZ_PLATFORM_NAME "linux")
--- a/README.md
+++ b/README.md
@@ -38,14 +38,14 @@

 ## Links

- [https://amnezia.org](https://amnezia.org/?utm_source=github&utm_campaign=amnezia_website-read) - Project website | [Alternative link (mirror)](https://storage.googleapis.com/amnezia/amnezia.org?utm_source=github&utm_campaign=amnezia_website-read)
- [https://docs.amnezia.org](https://docs.amnezia.org/?utm_source=github&utm_campaign=amnezia_website-read) - Documentation | [Alternative link (mirror)](https://storage.googleapis.com/amnezia/docs?utm_source=github&utm_campaign=amnezia_website-read)
+- [https://amnezia.org](https://amnezia.org) - Project website | [Alternative link (mirror)](https://storage.googleapis.com/kldscp/amnezia.org)
+- [https://docs.amnezia.org](https://docs.amnezia.org) - Documentation
 - [https://www.reddit.com/r/AmneziaVPN](https://www.reddit.com/r/AmneziaVPN) - Reddit  
- [https://telegram.me/amnezia_vpn_en](https://telegram.me/amnezia_vpn_en) - Telegram support channel (English) 
- [https://telegram.me/amnezia_vpn_ir](https://telegram.me/amnezia_vpn_ir) - Telegram support channel (Farsi) 
- [https://telegram.me/amnezia_vpn_mm](https://telegram.me/amnezia_vpn_mm) - Telegram support channel (Myanmar)  
- [https://telegram.me/amnezia_vpn](https://telegram.me/amnezia_vpn) - Telegram support channel (Russian)
- [Get Premium for 6 or 12 months](https://storage.googleapis.com/amnezia/pay?utm_source=github&utm_campaign=ampay-read)
+- [https://t.me/amnezia_vpn_en](https://t.me/amnezia_vpn_en) - Telegram support channel (English) 
+- [https://t.me/amnezia_vpn_ir](https://t.me/amnezia_vpn_ir) - Telegram support channel (Farsi) 
+- [https://t.me/amnezia_vpn_mm](https://t.me/amnezia_vpn_mm) - Telegram support channel (Myanmar)  
+- [https://t.me/amnezia_vpn](https://t.me/amnezia_vpn) - Telegram support channel (Russian)
+- [https://vpnpay.io/en/amnezia-premium/](https://vpnpay.io/en/amnezia-premium/) - Amnezia Premium

 ## Tech

--- a/README_RU.md
+++ b/README_RU.md
@@ -28,21 +28,21 @@

 - Простой в использовании — введите IP-адрес, SSH-логин и пароль, и Amnezia автоматически установит VPN-контейнеры Docker на ваш сервер и подключится к VPN.
 - Классические VPN-протоколы: OpenVPN, WireGuard и IKEv2.
- Протоколы с маскировкой трафика (обфускацией): OpenVPN с плагином [Cloak](https://github.com/cbeuw/Cloak), Shadowsocks (OpenVPN over Shadowsocks), [AmneziaWG](https://docs.amnezia.org/documentation/amnezia-wg/) и XRay.
+- Протоколы с маскировкой трафика (обфускацией): OpenVPN с плагином [Cloak](https://github.com/cbeuw/Cloak), Shadowsocks (OpenVPN over Shadowsocks), [AmneziaWG](https://docs.amnezia.org/documentation/amnezia-wg/) and XRay.
 - Поддержка Split Tunneling — добавляйте любые сайты или приложения в список, чтобы включить VPN только для них.
 - Поддерживает платформы: Windows, macOS, Linux, Android, iOS.
 - Поддержка конфигурации протокола AmneziaWG на [бета-прошивке Keenetic](https://docs.keenetic.com/ua/air/kn-1611/en/6319-latest-development-release.html#UUID-186c4108-5afd-c10b-f38a-cdff6c17fab3_section-idm33192196168192-improved).

 ## Ссылки

- [https://amnezia.org](https://amnezia.org/?utm_source=github&utm_campaign=amnezia_website-read) - Веб-сайт проекта | [Альтернативная ссылка (зеркало)](https://storage.googleapis.com/amnezia/amnezia.org?utm_source=github&utm_campaign=amnezia_website-read)
- [https://docs.amnezia.org](https://docs.amnezia.org/?utm_source=github&utm_campaign=amnezia_website-read) - Документация | [Альтернативная ссылка (зеркало)](https://storage.googleapis.com/amnezia/docs?utm_source=github&utm_campaign=amnezia_website-read)
+- [https://amnezia.org](https://amnezia.org) - Веб-сайт проекта | [Альтернативная ссылка (зеркало)](https://storage.googleapis.com/kldscp/amnezia.org)
+- [https://docs.amnezia.org](https://docs.amnezia.org) - Документация
 - [https://www.reddit.com/r/AmneziaVPN](https://www.reddit.com/r/AmneziaVPN) - Reddit  
- [https://telegram.me/amnezia_vpn_en](https://telegram.me/amnezia_vpn_en) - Канал поддержки в Telegram (Английский)
- [https://telegram.me/amnezia_vpn_ir](https://telegram.me/amnezia_vpn_ir) - Канал поддержки в Telegram (Фарси)
- [https://telegram.me/amnezia_vpn_mm](https://telegram.me/amnezia_vpn_mm) - Канал поддержки в Telegram (Мьянма) 
- [https://telegram.me/amnezia_vpn](https://telegram.me/amnezia_vpn) - Канал поддержки в Telegram  (Русский)
- [Оформите Premium на 6 или 12 месяцев](https://storage.googleapis.com/amnezia/pay?utm_source=github&utm_campaign=ampay-read)
+- [https://t.me/amnezia_vpn_en](https://t.me/amnezia_vpn_en) - Канал поддержки в Telegram (Английский)
+- [https://t.me/amnezia_vpn_ir](https://t.me/amnezia_vpn_ir) - Канал поддержки в Telegram (Фарси)
+- [https://t.me/amnezia_vpn_mm](https://t.me/amnezia_vpn_mm) - Канал поддержки в Telegram (Мьянма) 
+- [https://t.me/amnezia_vpn](https://t.me/amnezia_vpn) - Канал поддержки в Telegram  (Русский)
+- [https://vpnpay.io/en/amnezia-premium/](https://vpnpay.io/en/amnezia-premium/) - Amnezia Premium | [Зеркало](https://storage.googleapis.com/kldscp/vpnpay.io/ru/amnezia-premium\)

 ## Технологии

--- a/client/3rd/QSimpleCrypto
+++ b/client/3rd/QSimpleCrypto
--- a/client/3rd/amneziawg-apple
+++ b/client/3rd/amneziawg-apple
--- a/client/CMakeLists.txt
+++ b/client/CMakeLists.txt
@@ -103,7 +103,6 @@ include(${CMAKE_CURRENT_LIST_DIR}/cmake/sources.cmake)
 include_directories(
    ${CMAKE_CURRENT_LIST_DIR}/../ipc
    ${CMAKE_CURRENT_LIST_DIR}/../common/logger
-    ${CMAKE_CURRENT_LIST_DIR}/../common/crypto
    ${CMAKE_CURRENT_LIST_DIR}
    ${CMAKE_CURRENT_BINARY_DIR}
 )
@@ -194,6 +193,10 @@ elseif(APPLE)
    include(cmake/macos.cmake)
 endif()

+if(NOT IOS AND NOT ANDROID AND NOT MACOS_NE)
+    add_subdirectory(tests)
+endif()
+
 list(APPEND SOURCES ${CMAKE_CURRENT_LIST_DIR}/main.cpp)

 target_link_libraries(${PROJECT} PRIVATE ${LIBS})
@@ -213,32 +216,11 @@ endif()

 install(TARGETS ${PROJECT}
    DESTINATION ${CMAKE_INSTALL_BINDIR}
-    RUNTIME_DEPENDENCY_SET client_deps
    COMPONENT AmneziaVPN
 )
-
-if(APPLE)
-    set(RUNTIME_DEPS_DIR ${CMAKE_INSTALL_BINDIR}/AmneziaVPN.app/Contents/Frameworks)
-else()
-    set(RUNTIME_DEPS_DIR ${CMAKE_INSTALL_BINDIR})
-endif()
-
-install(RUNTIME_DEPENDENCY_SET client_deps
-    PRE_EXCLUDE_REGEXES
-        [[api-ms-win-.*]]
-        [[ext-ms-.*]]
-        [[kernel32\.dll]]
-        [[hvsifiletrust\.dll]]
-        [[libc\.so\..*]] [[libgcc_s\.so\..*]] [[libm\.so\..*]] [[libstdc\+\+\.so\..*]]
-        [[.*\.framework]]
-        [[^[Qq]t.*]]
-    POST_EXCLUDE_REGEXES
-        [[^.*[\\/]system32[\\/].*\.dll$]]
-        [[^/lib.*]]
-        [[^/usr/lib.*]]
-    DIRECTORIES ${CONAN_RUNTIME_LIB_DIRS}
+install(FILES $<TARGET_RUNTIME_DLLS:${PROJECT}>
+    DESTINATION ${CMAKE_INSTALL_BINDIR}
    COMPONENT AmneziaVPN
-    DESTINATION "${RUNTIME_DEPS_DIR}"
 )

 set(deploy_tool_options "")
@@ -258,10 +240,6 @@ install(SCRIPT ${QT_DEPLOY_SCRIPT}

 if (APPLE AND NOT IOS AND NOT MACOS_NE)
    list(APPEND OVPN_SCRIPTS "${CMAKE_SOURCE_DIR}/deploy/data/macos/update-resolv-conf.sh")
-    set_target_properties(${PROJECT} PROPERTIES
-        XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO"
-        XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO"
-    )
 endif()
 if (LINUX AND NOT ANDROID)
    list(APPEND OVPN_SCRIPTS "${CMAKE_SOURCE_DIR}/deploy/data/linux/update-resolv-conf.sh")
--- a/client/amneziaApplication.cpp
+++ b/client/amneziaApplication.cpp
@@ -22,7 +22,6 @@
 #include "logger.h"
 #include "ui/controllers/qml/pageController.h"
 #include "ui/models/installedAppsModel.h"
-#include "ui/utils/mtProxyPublicHostInput.h"
 #include "version.h"

 #include "platforms/ios/QRCodeReaderBase.h"
@@ -120,13 +119,7 @@ void AmneziaApplication::init()
                win->setPersistentSceneGraph(true);
                win->setPersistentGraphics(true);
 #endif
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
                win->show();
-#else
-                if (!m_coreController || !m_coreController->pageController()->shouldStartMinimized()) {
-                    win->show();
-                }
-#endif
            }
        },
        Qt::QueuedConnection);
@@ -145,9 +138,6 @@ void AmneziaApplication::init()

    m_coreController.reset(new CoreController(m_vpnConnection, m_settings, m_engine));

-    m_marketplaceUpdateController.reset(new MarketplaceUpdateController());
-    m_marketplaceUpdateController->start();
-
    m_engine->addImportPath("qrc:/ui/qml/Modules/");

    if (m_parser.isSet(m_optImport)) {
@@ -225,9 +215,6 @@ void AmneziaApplication::registerTypes()

    qmlRegisterType<InstalledAppsModel>("InstalledAppsModel", 1, 0, "InstalledAppsModel");

-    qmlRegisterType<PublicHostInputValidator>("MtProxyConfig", 1, 0, "PublicHostInputValidator");
-    qmlRegisterType<PublicHostInputValidator>("TelemtConfig", 1, 0, "PublicHostInputValidator");
-
    amnezia::declareQmlProtocolEnum();
    Vpn::declareQmlVpnConnectionStateEnum();
    PageLoader::declareQmlPageEnum();
--- a/client/amneziaApplication.h
+++ b/client/amneziaApplication.h
@@ -15,7 +15,6 @@

 #include "core/controllers/coreController.h"
 #include "secureQSettings.h"
-#include "ui/controllers/marketplaceUpdateController.h"
 #include "vpnConnection.h"
 #include "ui/models/containerProps.h"
 #include "ui/models/protocolProps.h"
@@ -57,7 +56,6 @@ private:
    SecureQSettings* m_settings;

    QScopedPointer<CoreController> m_coreController;
-    QScopedPointer<MarketplaceUpdateController> m_marketplaceUpdateController;

    QSharedPointer<ContainerProps> m_containerProps;
    QSharedPointer<ProtocolProps> m_protocolProps;
--- a/client/android/build.gradle.kts
+++ b/client/android/build.gradle.kts
@@ -84,5 +84,4 @@ dependencies {
    implementation(libs.google.mlkit)
    implementation(libs.androidx.datastore)
    implementation(libs.androidx.biometric)
-    implementation(libs.google.play.app.update)
 }
--- a/client/android/gradle/libs.versions.toml
+++ b/client/android/gradle/libs.versions.toml
@@ -12,7 +12,6 @@ androidx-datastore = "1.1.1"
 kotlinx-coroutines = "1.8.1"
 kotlinx-serialization = "1.6.3"
 google-mlkit = "17.3.0"
-google-play-app-update = "2.1.0"

 [libraries]
 androidx-core = { module = "androidx.core:core-ktx", version.ref = "androidx-core" }
@@ -29,7 +28,6 @@ androidx-datastore = { module = "androidx.datastore:datastore-preferences", vers
 kotlinx-coroutines = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-android", version.ref = "kotlinx-coroutines" }
 kotlinx-serialization-protobuf = { module = "org.jetbrains.kotlinx:kotlinx-serialization-protobuf", version.ref = "kotlinx-serialization" }
 google-mlkit = { module = "com.google.mlkit:barcode-scanning", version.ref = "google-mlkit" }
-google-play-app-update = { module = "com.google.android.play:app-update-ktx", version.ref = "google-play-app-update" }

 [bundles]
 androidx-camera = [
--- a/client/android/res/drawable/ic_launcher_background.xml
+++ b/client/android/res/drawable/ic_launcher_background.xml
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <gradient
-        android:type="linear"
-        android:angle="135"
-        android:startColor="#2A2A2E"
-        android:centerColor="#17171A"
-        android:endColor="#0E0E11" />
-</shape>
--- a/client/android/res/drawable/ic_launcher_monochrome.xml
+++ b/client/android/res/drawable/ic_launcher_monochrome.xml
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<inset xmlns:android="http://schemas.android.com/apk/res/android"
-    android:drawable="@drawable/ic_amnezia_round"
-    android:insetLeft="19.5%"
-    android:insetTop="19.5%"
-    android:insetRight="19.5%"
-    android:insetBottom="19.5%" />
--- a/client/android/res/mipmap-anydpi-v26/icon.xml
+++ b/client/android/res/mipmap-anydpi-v26/icon.xml
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
-    <monochrome android:drawable="@drawable/ic_launcher_monochrome" />
-</adaptive-icon>
--- a/client/android/res/mipmap-anydpi-v26/icon_round.xml
+++ b/client/android/res/mipmap-anydpi-v26/icon_round.xml
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
-    <monochrome android:drawable="@drawable/ic_launcher_monochrome" />
-</adaptive-icon>
--- a/client/android/res/mipmap-hdpi/ic_launcher_foreground.png
+++ b/client/android/res/mipmap-hdpi/ic_launcher_foreground.png
--- a/client/android/res/mipmap-mdpi/ic_launcher_foreground.png
+++ b/client/android/res/mipmap-mdpi/ic_launcher_foreground.png
--- a/client/android/res/mipmap-xhdpi/ic_launcher_foreground.png
+++ b/client/android/res/mipmap-xhdpi/ic_launcher_foreground.png
--- a/client/android/res/mipmap-xxhdpi/ic_launcher_foreground.png
+++ b/client/android/res/mipmap-xxhdpi/ic_launcher_foreground.png
--- a/client/android/res/mipmap-xxxhdpi/ic_launcher_foreground.png
+++ b/client/android/res/mipmap-xxxhdpi/ic_launcher_foreground.png
--- a/client/android/res/values-v31/styles.xml
+++ b/client/android/res/values-v31/styles.xml
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="NoActionBar">
-        <item name="android:windowBackground">@color/black</item>
-        <item name="android:colorBackground">@color/black</item>
-        <item name="android:windowActionBar">false</item>
-        <item name="android:windowNoTitle">true</item>
-        <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
-        <item name="android:enforceNavigationBarContrast">false</item>
-        <item name="android:enforceStatusBarContrast">false</item>
-
-        <item name="android:windowSplashScreenBackground">@color/ic_launcher_background</item>
-        <item name="android:windowSplashScreenIconBackgroundColor">@color/ic_launcher_background</item>
-        <item name="android:windowSplashScreenAnimatedIcon">@mipmap/icon</item>
-    </style>
-</resources>
--- a/client/android/res/values/colors.xml
+++ b/client/android/res/values/colors.xml
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="ic_launcher_background">#0E0E11</color>
-</resources>
--- a/client/android/src/org/amnezia/vpn/AmneziaActivity.kt
+++ b/client/android/src/org/amnezia/vpn/AmneziaActivity.kt
@@ -42,21 +42,11 @@ import androidx.core.view.OnApplyWindowInsetsListener
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
-import java.io.File
 import java.io.IOException
 import kotlin.LazyThreadSafetyMode.NONE
 import kotlin.coroutines.CoroutineContext
 import kotlin.text.RegexOption.IGNORE_CASE
 import AppListProvider
-import com.google.android.play.core.appupdate.AppUpdateInfo
-import com.google.android.play.core.appupdate.AppUpdateManager
-import com.google.android.play.core.appupdate.AppUpdateManagerFactory
-import com.google.android.play.core.appupdate.AppUpdateOptions
-import com.google.android.play.core.install.InstallState
-import com.google.android.play.core.install.InstallStateUpdatedListener
-import com.google.android.play.core.install.model.AppUpdateType
-import com.google.android.play.core.install.model.InstallStatus
-import com.google.android.play.core.install.model.UpdateAvailability
 import kotlinx.coroutines.CompletableDeferred
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -83,9 +73,6 @@ private const val CHECK_VPN_PERMISSION_ACTION_CODE = 1
 private const val CREATE_FILE_ACTION_CODE = 2
 private const val OPEN_FILE_ACTION_CODE = 3
 private const val CHECK_NOTIFICATION_PERMISSION_ACTION_CODE = 4
-private const val UPDATE_APP_ACTION_CODE = 5
-
-private const val PLAY_UPDATE_UNAVAILABLE = 1

 private const val PREFS_NOTIFICATION_PERMISSION_ASKED = "NOTIFICATION_PERMISSION_ASKED"
 private const val OPEN_FILE_AFTER_RESUME_DELAY_MS = 400L
@@ -112,24 +99,6 @@ class AmneziaActivity : QtActivity() {
    private var pendingOpenFileUri: String? = null
    private var openFileDeliveryScheduled = false

-    private var appUpdateManager: AppUpdateManager? = null
-    private var restartTitle = ""
-    private var restartMessage = ""
-    private var restartAction = ""
-    private var restartLater = ""
-    private var restartPromptShown = false
-
-    private val installStateListener = InstallStateUpdatedListener(::onInstallStateUpdated)
-
-    private fun onInstallStateUpdated(state: InstallState) {
-        when (state.installStatus()) {
-            InstallStatus.DOWNLOADED -> promptCompleteUpdate()
-            InstallStatus.INSTALLED, InstallStatus.FAILED, InstallStatus.CANCELED ->
-                appUpdateManager?.unregisterListener(installStateListener)
-            else -> {}
-        }
-    }
-
    private val vpnServiceEventHandler: Handler by lazy(NONE) {
        object : Handler(Looper.getMainLooper()) {
            override fun handleMessage(msg: Message) {
@@ -404,12 +373,6 @@ class AmneziaActivity : QtActivity() {
            QtAndroidController.onActivityResumed()
        }

-        appUpdateManager?.appUpdateInfo?.addOnSuccessListener { info ->
-            if (info.installStatus() == InstallStatus.DOWNLOADED) {
-                promptCompleteUpdate()
-            }
-        }
-
        if (pendingOpenFileUri != null && !openFileDeliveryScheduled) {
            val uri = pendingOpenFileUri!!
            openFileDeliveryScheduled = true
@@ -523,92 +486,9 @@ class AmneziaActivity : QtActivity() {
        super.onDestroy()
    }

-    fun checkPlayUpdate(restartTitle: String, restartMessage: String, restartAction: String, restartLater: String) {
-        this.restartTitle = restartTitle
-        this.restartMessage = restartMessage
-        this.restartAction = restartAction
-        this.restartLater = restartLater
-        runOnUiThread {
-            val manager = appUpdateManager
-                ?: AppUpdateManagerFactory.create(applicationContext).also { appUpdateManager = it }
-            manager.appUpdateInfo
-                .addOnSuccessListener { info ->
-                    val available = info.updateAvailability() == UpdateAvailability.UPDATE_AVAILABLE &&
-                        info.isUpdateTypeAllowed(AppUpdateType.FLEXIBLE)
-                    if (available) {
-                        startPlayFlexibleFlow(info)
-                    } else {
-                        Log.d(TAG, "Play update not available, using fallback")
-                        QtAndroidController.onPlayUpdateResult(PLAY_UPDATE_UNAVAILABLE)
-                    }
-                }
-                .addOnFailureListener { e ->
-                    Log.w(TAG, "checkPlayUpdate failed: ${e.message}")
-                    QtAndroidController.onPlayUpdateResult(PLAY_UPDATE_UNAVAILABLE)
-                }
-        }
-    }
-
-    private fun startPlayFlexibleFlow(info: AppUpdateInfo) {
-        val manager = appUpdateManager ?: run {
-            QtAndroidController.onPlayUpdateResult(PLAY_UPDATE_UNAVAILABLE)
-            return
-        }
-        try {
-            manager.registerListener(installStateListener)
-            manager.startUpdateFlowForResult(
-                info, this, AppUpdateOptions.newBuilder(AppUpdateType.FLEXIBLE).build(), UPDATE_APP_ACTION_CODE
-            )
-        } catch (e: Exception) {
-            Log.w(TAG, "startPlayUpdateFlow failed: ${e.message}")
-            manager.unregisterListener(installStateListener)
-            QtAndroidController.onPlayUpdateResult(PLAY_UPDATE_UNAVAILABLE)
-        }
-    }
-
-    private fun promptCompleteUpdate() {
-        if (isFinishing || isDestroyed || restartPromptShown) return
-        restartPromptShown = true
-        AlertDialog.Builder(this)
-            .setTitle(restartTitle)
-            .setMessage(restartMessage)
-            .setCancelable(false)
-            .setPositiveButton(restartAction) { _, _ -> appUpdateManager?.completeUpdate() }
-            .setNegativeButton(restartLater) { d, _ ->
-                restartPromptShown = false
-                d.dismiss()
-            }
-            .show()
-    }
-
-    fun showUpdatePrompt(title: String, message: String, updateTitle: String, skipTitle: String, storeUrl: String) {
-        runOnUiThread {
-            if (isFinishing || isDestroyed) return@runOnUiThread
-            AlertDialog.Builder(this)
-                .setTitle(title)
-                .setMessage(message)
-                .setCancelable(true)
-                .setPositiveButton(updateTitle) { _, _ ->
-                    try {
-                        startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(storeUrl)))
-                    } catch (e: ActivityNotFoundException) {
-                        Log.w(TAG, "open store failed: ${e.message}")
-                    }
-                }
-                .setNegativeButton(skipTitle) { d, _ -> d.dismiss() }
-                .show()
-        }
-    }
-
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        Log.d(TAG, "Process activity result, code: ${actionCodeToString(requestCode)}, " +
                "resultCode: $resultCode, data: $data")
-        if (requestCode == UPDATE_APP_ACTION_CODE) {
-            if (resultCode != RESULT_OK) {
-                appUpdateManager?.unregisterListener(installStateListener)
-            }
-            return
-        }
        actionResultHandlers[requestCode]?.let { handler ->
            when (resultCode) {
                RESULT_OK -> handler.onSuccess(data)
@@ -883,13 +763,7 @@ class AmneziaActivity : QtActivity() {
    fun openFile(filter: String?) {
        Log.v(TAG, "Open file with filter: $filter")
        mainScope.launch {
-            val systemPickerPackage = listOf("com.google.android.documentsui", "com.android.documentsui")
-                .firstOrNull { pkg ->
-                    try { packageManager.getPackageInfo(pkg, 0); true }
-                    catch (_: PackageManager.NameNotFoundException) { false }
-                }
-
-            val intent = if (!isOnTv() && systemPickerPackage != null) {
+            val intent = if (!isOnTv()) {
                val mimeTypes = if (!filter.isNullOrEmpty()) {
                    val extensionRegex = "\\*\\.([a-z0-9]+)".toRegex(IGNORE_CASE)
                    val mime = MimeTypeMap.getSingleton()
@@ -915,7 +789,6 @@ class AmneziaActivity : QtActivity() {
                            else -> type = "*/*"
                        }
                    }
-                    `package` = systemPickerPackage
                }
            } else {
                Intent(this@AmneziaActivity, TvFilePicker::class.java)
@@ -927,11 +800,8 @@ class AmneziaActivity : QtActivity() {
                        if (isOnTv() && it?.hasExtra("activityNotFound") == true) {
                            showNoFileBrowserAlertDialog()
                        }
-                        val uri = it?.data?.let { u ->
-                            if (u.scheme == "content") {
-                                try { grantUriPermission(packageName, u, Intent.FLAG_GRANT_READ_URI_PERMISSION) } catch (_: Exception) {}
-                            }
-                            u
+                        val uri = it?.data?.apply {
+                            grantUriPermission(packageName, this, Intent.FLAG_GRANT_READ_URI_PERMISSION)
                        }?.toString() ?: ""
                        Log.v(TAG, "Open file: $uri")
                        if (uri.isNotEmpty()) {
@@ -971,12 +841,7 @@ class AmneziaActivity : QtActivity() {
        Log.v(TAG, "Get fd for $fileName")
        return blockingCall(Dispatchers.IO) {
            try {
-                val uri = Uri.parse(fileName)
-                pfd = if (uri.scheme == "file") {
-                    ParcelFileDescriptor.open(File(uri.path!!), ParcelFileDescriptor.MODE_READ_ONLY)
-                } else {
-                    contentResolver.openFileDescriptor(uri, "r")
-                }
+                pfd = contentResolver.openFileDescriptor(Uri.parse(fileName), "r")
                pfd?.fd ?: -1
            } catch (e: Exception) {
                Log.e(TAG, "Failed to get fd: $e")
@@ -1196,10 +1061,12 @@ class AmneziaActivity : QtActivity() {
    @Suppress("unused")
    fun sendTouch(x: Float, y: Float) {
        Log.v(TAG, "Send touch: $x, $y")
-        findQtWindow(window.decorView)?.let {
-            Log.v(TAG, "Send touch to $it")
-            it.dispatchTouchEvent(createEvent(x, y, SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN))
-            it.dispatchTouchEvent(createEvent(x, y, SystemClock.uptimeMillis(), MotionEvent.ACTION_UP))
+        blockingCall {
+            findQtWindow(window.decorView)?.let {
+                Log.v(TAG, "Send touch to $it")
+                it.dispatchTouchEvent(createEvent(x, y, SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN))
+                it.dispatchTouchEvent(createEvent(x, y, SystemClock.uptimeMillis(), MotionEvent.ACTION_UP))
+            }
        }
    }

@@ -1312,7 +1179,6 @@ class AmneziaActivity : QtActivity() {
                CREATE_FILE_ACTION_CODE -> "CREATE_FILE"
                OPEN_FILE_ACTION_CODE -> "OPEN_FILE"
                CHECK_NOTIFICATION_PERMISSION_ACTION_CODE -> "CHECK_NOTIFICATION_PERMISSION"
-                UPDATE_APP_ACTION_CODE -> "UPDATE_APP"
                else -> actionCode.toString()
            }
    }
--- a/client/android/src/org/amnezia/vpn/TvFilePicker.kt
+++ b/client/android/src/org/amnezia/vpn/TvFilePicker.kt
@@ -1,36 +1,30 @@
 package org.amnezia.vpn

-import android.Manifest
-import android.app.AlertDialog
 import android.content.ActivityNotFoundException
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
-import android.net.Uri
 import android.os.Build
 import android.os.Bundle
-import android.os.Environment
 import androidx.activity.ComponentActivity
 import androidx.activity.result.contract.ActivityResultContracts
 import org.amnezia.vpn.util.Log
-import java.io.File

 private const val TAG = "TvFilePicker"
-private const val READ_STORAGE_REQUEST_CODE = 1001

 class TvFilePicker : ComponentActivity() {

-    // SAF launcher for Android 10+ where File API is blocked by scoped storage
-    private val safLauncher = registerForActivityResult(object : ActivityResultContracts.OpenDocument() {
+    private val fileChooseResultLauncher = registerForActivityResult(object : ActivityResultContracts.OpenDocument() {
        override fun createIntent(context: Context, input: Array<String>): Intent {
            val intent = super.createIntent(context, input)
-            val activities = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+
+            val activitiesToResolveIntent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                context.packageManager.queryIntentActivities(intent, PackageManager.ResolveInfoFlags.of(PackageManager.MATCH_DEFAULT_ONLY.toLong()))
            } else {
                @Suppress("DEPRECATION")
                context.packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
            }
-            if (activities.all {
+            if (activitiesToResolveIntent.all {
                    val name = it.activityInfo.packageName
                    name.startsWith("com.google.android.tv.frameworkpackagestubs") || name.startsWith("com.android.tv.frameworkpackagestubs")
                }) {
@@ -38,140 +32,38 @@ class TvFilePicker : ComponentActivity() {
            }
            return intent
        }
-    }) { uri ->
+    }) {
        setResult(RESULT_OK, Intent().apply {
-            data = uri
+            data = it
            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
        })
        finish()
    }

-    private val directoryStack = ArrayDeque<File>()
-
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        Log.v(TAG, "onCreate")
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-            launchSaf()
-        } else {
-            checkPermissionAndBrowse()
-        }
+        getFile()
    }

-    @Deprecated("Deprecated in Java")
-    override fun onBackPressed() {
-        navigateBack()
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        Log.v(TAG, "onNewIntent")
+        getFile()
    }

-    private fun launchSaf() {
+    private fun getFile() {
        try {
-            safLauncher.launch(arrayOf("*/*"))
+            Log.v(TAG, "getFile")
+            fileChooseResultLauncher.launch(arrayOf("*/*"))
        } catch (_: ActivityNotFoundException) {
-            Log.w(TAG, "No SAF activity found")
+            Log.w(TAG, "Activity not found")
            setResult(RESULT_CANCELED, Intent().apply { putExtra("activityNotFound", true) })
            finish()
        } catch (e: Exception) {
-            Log.e(TAG, "SAF launch failed: $e")
+            Log.e(TAG, "Failed to get file: $e")
            setResult(RESULT_CANCELED)
            finish()
        }
    }
-
-    private fun checkPermissionAndBrowse() {
-        if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
-            requestPermissions(arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), READ_STORAGE_REQUEST_CODE)
-        } else {
-            showRootDirectory()
-        }
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-        if (requestCode == READ_STORAGE_REQUEST_CODE &&
-            grantResults.firstOrNull() == PackageManager.PERMISSION_GRANTED) {
-            showRootDirectory()
-        } else {
-            setResult(RESULT_CANCELED)
-            finish()
-        }
-    }
-
-    private fun showRootDirectory() {
-        @Suppress("DEPRECATION")
-        val primaryExternal = Environment.getExternalStorageDirectory()
-        val storageDir = File("/storage")
-        // Pre-seed stack with /storage so Back from primary storage goes there (USB drives etc.)
-        if (storageDir.exists() && storageDir.canonicalPath != primaryExternal.canonicalPath) {
-            directoryStack.addLast(storageDir)
-        }
-        showDirectory(primaryExternal)
-    }
-
-    private fun navigateBack() {
-        if (directoryStack.size > 1) {
-            directoryStack.removeLast()
-            val parent = directoryStack.removeLast()
-            showDirectory(parent)
-        } else {
-            setResult(RESULT_CANCELED)
-            finish()
-        }
-    }
-
-    private fun showDirectory(dir: File) {
-        directoryStack.addLast(dir)
-        Log.v(TAG, "Showing directory: ${dir.absolutePath}")
-
-        val entries = try {
-            dir.listFiles()
-                ?.sortedWith(compareBy({ !it.isDirectory }, { it.name.lowercase() }))
-                ?: emptyList()
-        } catch (e: Exception) {
-            Log.e(TAG, "Failed to list directory: $e")
-            emptyList()
-        }
-
-        val names = entries.map { if (it.isDirectory) "[${it.name}]" else it.name }.toTypedArray()
-
-        val builder = AlertDialog.Builder(this)
-            .setTitle(dir.absolutePath)
-
-        if (entries.isEmpty()) {
-            builder.setMessage("No files available")
-        } else {
-            builder.setItems(names) { dialog, which ->
-                dialog.dismiss()
-                val selected = entries[which]
-                if (selected.isDirectory) {
-                    showDirectory(selected)
-                } else {
-                    Log.v(TAG, "Selected file: ${selected.absolutePath}")
-                    setResult(RESULT_OK, Intent().apply {
-                        data = Uri.fromFile(selected)
-                        addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-                    })
-                    finish()
-                }
-            }
-        }
-
-        if (directoryStack.size > 1) {
-            builder.setNegativeButton("↑ Back") { dialog, _ ->
-                dialog.dismiss()
-                navigateBack()
-            }
-        } else {
-            builder.setNegativeButton(android.R.string.cancel) { _, _ ->
-                setResult(RESULT_CANCELED)
-                finish()
-            }
-        }
-
-        builder.setOnCancelListener {
-            setResult(RESULT_CANCELED)
-            finish()
-        }
-
-        builder.show()
-    }
 }
--- a/client/android/src/org/amnezia/vpn/qt/QtAndroidController.kt
+++ b/client/android/src/org/amnezia/vpn/qt/QtAndroidController.kt
@@ -34,6 +34,4 @@ object QtAndroidController {

    external fun onActivityPaused()
    external fun onActivityResumed()
-
-    external fun onPlayUpdateResult(status: Int)
 }
--- a/client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/Wireguard.kt
+++ b/client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/Wireguard.kt
@@ -111,7 +111,7 @@ open class Wireguard : Protocol() {
            configExtensionParameters(configData)
        }

-        configData.optStringOrNull("persistent_keep_alive")?.let { setPersistentKeepalive(it) }
+        configData.optStringOrNull("persistent_keep_alive")?.let { setPersistentKeepalive(it.toInt()) }
        configData.getString("client_priv_key").let { setPrivateKeyHex(it.base64ToHex()) }
        configData.getString("server_pub_key").let { setPublicKeyHex(it.base64ToHex()) }
        configData.optStringOrNull("psk_key")?.let { setPreSharedKeyHex(it.base64ToHex()) }
@@ -134,20 +134,6 @@ open class Wireguard : Protocol() {
        configData.optStringOrNull("I3")?.let { setI3(it) }
        configData.optStringOrNull("I4")?.let { setI4(it) }
        configData.optStringOrNull("I5")?.let { setI5(it) }
-        configData.optStringOrNull("HeaderProtectionKey")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setHeaderProtectionKey(it.base64ToHex()) }
-        configData.optStringOrNull("ContentPaddingAddition")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setContentPaddingAddition(it) }
-        configData.optStringOrNull("RekeyAfterTime")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setRekeyAfterTime(it) }
-        configData.optStringOrNull("RekeyTimeout")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setRekeyTimeout(it) }
-        configData.optStringOrNull("RejectAfterTime")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setRejectAfterTime(it) }
-        configData.optStringOrNull("KeepaliveTimeout")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setKeepaliveTimeout(it) }
-        configData.optStringOrNull("MaxHandshakeAttempts")?.trim()?.takeIf { it.isNotEmpty() }
-            ?.let { setMaxHandshakeAttempts(it) }
    }

    private fun start(
--- a/client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/WireguardConfig.kt
+++ b/client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/WireguardConfig.kt
@@ -10,7 +10,7 @@ private const val WIREGUARD_DEFAULT_MTU = 1280
 open class WireguardConfig protected constructor(
    protocolConfigBuilder: ProtocolConfig.Builder,
    val endpoint: InetEndpoint,
-    val persistentKeepalive: String?,
+    val persistentKeepalive: Int,
    val publicKeyHex: String,
    val preSharedKeyHex: String?,
    val privateKeyHex: String,
@@ -31,13 +31,6 @@ open class WireguardConfig protected constructor(
    var i3: String?,
    var i4: String?,
    var i5: String?,
-    val headerProtectionKeyHex: String?,
-    val contentPaddingAddition: String?,
-    val rekeyAfterTime: String?,
-    val rekeyTimeout: String?,
-    val rejectAfterTime: String?,
-    val keepaliveTimeout: String?,
-    val maxHandshakeAttempts: String?,
 ) : ProtocolConfig(protocolConfigBuilder) {

    protected constructor(builder: Builder) : this(
@@ -64,13 +57,6 @@ open class WireguardConfig protected constructor(
        builder.i3,
        builder.i4,
        builder.i5,
-        builder.headerProtectionKeyHex,
-        builder.contentPaddingAddition,
-        builder.rekeyAfterTime,
-        builder.rekeyTimeout,
-        builder.rejectAfterTime,
-        builder.keepaliveTimeout,
-        builder.maxHandshakeAttempts,
    )

    fun toWgUserspaceString(): String = with(StringBuilder()) {
@@ -101,13 +87,6 @@ open class WireguardConfig protected constructor(
            i4?.let { appendLine("i4=$it") }
            i5?.let { appendLine("i5=$it") }
        }
-        headerProtectionKeyHex?.takeIf { it.isNotEmpty() }?.let { appendLine("header_protection_key=$it") }
-        contentPaddingAddition?.takeIf { it.isNotEmpty() }?.let { appendLine("content_padding_addition=$it") }
-        rekeyAfterTime?.takeIf { it.isNotEmpty() }?.let { appendLine("rekey_after_time=$it") }
-        rekeyTimeout?.takeIf { it.isNotEmpty() }?.let { appendLine("rekey_timeout=$it") }
-        rejectAfterTime?.takeIf { it.isNotEmpty() }?.let { appendLine("reject_after_time=$it") }
-        keepaliveTimeout?.takeIf { it.isNotEmpty() }?.let { appendLine("keepalive_timeout=$it") }
-        maxHandshakeAttempts?.takeIf { it.isNotEmpty() }?.let { appendLine("max_handshake_attempts=$it") }
    }

    private fun validateProtocolExtensionParameters() {
@@ -128,7 +107,7 @@ open class WireguardConfig protected constructor(
            appendLine("allowed_ip=${route.inetNetwork}")
        }
        appendLine("endpoint=$endpoint")
-        if (!persistentKeepalive.isNullOrEmpty() && persistentKeepalive != "0")
+        if (persistentKeepalive != 0)
            appendLine("persistent_keepalive_interval=$persistentKeepalive")
        if (preSharedKeyHex != null)
            appendLine("preshared_key=$preSharedKeyHex")
@@ -138,7 +117,7 @@ open class WireguardConfig protected constructor(
        internal lateinit var endpoint: InetEndpoint
            private set

-        internal var persistentKeepalive: String? = null
+        internal var persistentKeepalive: Int = 0
            private set

        internal lateinit var publicKeyHex: String
@@ -170,17 +149,10 @@ open class WireguardConfig protected constructor(
        internal var i3: String? = null
        internal var i4: String? = null
        internal var i5: String? = null
-        internal var headerProtectionKeyHex: String? = null
-        internal var contentPaddingAddition: String? = null
-        internal var rekeyAfterTime: String? = null
-        internal var rekeyTimeout: String? = null
-        internal var rejectAfterTime: String? = null
-        internal var keepaliveTimeout: String? = null
-        internal var maxHandshakeAttempts: String? = null

        fun setEndpoint(endpoint: InetEndpoint) = apply { this.endpoint = endpoint }

-        fun setPersistentKeepalive(persistentKeepalive: String) = apply { this.persistentKeepalive = persistentKeepalive }
+        fun setPersistentKeepalive(persistentKeepalive: Int) = apply { this.persistentKeepalive = persistentKeepalive }

        fun setPublicKeyHex(publicKeyHex: String) = apply { this.publicKeyHex = publicKeyHex }

@@ -206,13 +178,6 @@ open class WireguardConfig protected constructor(
        fun setI3(i3: String) = apply { this.i3 = i3 }
        fun setI4(i4: String) = apply { this.i4 = i4 }
        fun setI5(i5: String) = apply { this.i5 = i5 }
-        fun setHeaderProtectionKey(headerProtectionKeyHex: String) = apply { this.headerProtectionKeyHex = headerProtectionKeyHex }
-        fun setContentPaddingAddition(contentPaddingAddition: String) = apply { this.contentPaddingAddition = contentPaddingAddition }
-        fun setRekeyAfterTime(rekeyAfterTime: String) = apply { this.rekeyAfterTime = rekeyAfterTime }
-        fun setRekeyTimeout(rekeyTimeout: String) = apply { this.rekeyTimeout = rekeyTimeout }
-        fun setRejectAfterTime(rejectAfterTime: String) = apply { this.rejectAfterTime = rejectAfterTime }
-        fun setKeepaliveTimeout(keepaliveTimeout: String) = apply { this.keepaliveTimeout = keepaliveTimeout }
-        fun setMaxHandshakeAttempts(maxHandshakeAttempts: String) = apply { this.maxHandshakeAttempts = maxHandshakeAttempts }

        override fun build(): WireguardConfig = configBuild().run { WireguardConfig(this@Builder) }
    }
--- a/client/cmake/3rdparty.cmake
+++ b/client/cmake/3rdparty.cmake
@@ -2,8 +2,9 @@ set(CLIENT_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/..)

 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/Modules;${CMAKE_MODULE_PATH}")

-add_subdirectory(${CLIENT_ROOT_DIR}/3rd/SortFilterProxyModel ${CMAKE_BINARY_DIR}/3rd/SortFilterProxyModel)
+add_subdirectory(${CLIENT_ROOT_DIR}/3rd/SortFilterProxyModel)
 set(LIBS ${LIBS} SortFilterProxyModel)
+include(${CLIENT_ROOT_DIR}/cmake/QSimpleCrypto.cmake)

 include(${CLIENT_ROOT_DIR}/3rd/qrcodegen/qrcodegen.cmake)

@@ -11,24 +12,20 @@ add_compile_definitions(_WINSOCKAPI_)

 set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
 set(BUILD_WITH_QT6 ON)
-add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtkeychain ${CMAKE_BINARY_DIR}/3rd/qtkeychain EXCLUDE_FROM_ALL)
+add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtkeychain EXCLUDE_FROM_ALL)

 if(ANDROID)
    # Use qtgamepad from amnezia-vpn/qtgamepad repository
    # Only if Qt6CorePrivate is available (required by qtgamepad)
    find_package(Qt6CorePrivate CONFIG QUIET)
    if(Qt6CorePrivate_FOUND)
-        add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtgamepad ${CMAKE_BINARY_DIR}/3rd/qtgamepad)
+        add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtgamepad)
        # Link both the C++ module and QML plugin
-        if(TARGET ${PROJECT})
+        if(TARGET GamepadLegacy)
            target_link_libraries(${PROJECT} PRIVATE GamepadLegacy)
-        else()
-            list(APPEND LIBS GamepadLegacy)
        endif()
-        if(TARGET ${PROJECT})
+        if(TARGET GamepadLegacyQuickPrivate)
            target_link_libraries(${PROJECT} PRIVATE GamepadLegacyQuickPrivate)
-        else()
-            list(APPEND LIBS GamepadLegacyQuickPrivate)
        endif()
        message(STATUS "Gamepad support enabled for Android")
    else()
@@ -39,6 +36,7 @@ endif()
 set(LIBS ${LIBS} qt6keychain)

 include_directories(
+    ${CLIENT_ROOT_DIR}/3rd/QSimpleCrypto/src/include
    ${CLIENT_ROOT_DIR}/3rd/qtkeychain/qtkeychain
    ${CMAKE_CURRENT_BINARY_DIR}/3rd/qtkeychain
 )
--- a/client/cmake/QSimpleCrypto.cmake
+++ b/client/cmake/QSimpleCrypto.cmake
@@ -0,0 +1,21 @@
+set(CLIENT_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
+set(QSIMPLECRYPTO_DIR ${CLIENT_ROOT_DIR}/3rd/QSimpleCrypto/src)
+
+include_directories(${QSIMPLECRYPTO_DIR})
+
+set(HEADERS ${HEADERS}
+    ${QSIMPLECRYPTO_DIR}/include/QAead.h
+    ${QSIMPLECRYPTO_DIR}/include/QBlockCipher.h
+    ${QSIMPLECRYPTO_DIR}/include/QRsa.h
+    ${QSIMPLECRYPTO_DIR}/include/QSimpleCrypto_global.h
+    ${QSIMPLECRYPTO_DIR}/include/QX509.h
+    ${QSIMPLECRYPTO_DIR}/include/QX509Store.h
+)
+
+set(SOURCES ${SOURCES}
+    ${QSIMPLECRYPTO_DIR}/sources/QAead.cpp
+    ${QSIMPLECRYPTO_DIR}/sources/QBlockCipher.cpp
+    ${QSIMPLECRYPTO_DIR}/sources/QRsa.cpp
+    ${QSIMPLECRYPTO_DIR}/sources/QX509.cpp
+    ${QSIMPLECRYPTO_DIR}/sources/QX509Store.cpp
+)
--- a/client/cmake/ios.cmake
+++ b/client/cmake/ios.cmake
@@ -54,6 +54,7 @@ target_include_directories(${PROJECT} PRIVATE ${Qt6Gui_PRIVATE_INCLUDE_DIRS})


 set_target_properties(${PROJECT} PROPERTIES
+    XCODE_LINK_BUILD_PHASE_MODE KNOWN_LOCATION
    MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/ios/app/Info.plist.in
    MACOSX_BUNDLE_ICON_FILE "AppIcon"
    MACOSX_BUNDLE_INFO_STRING "AmneziaVPN"
@@ -121,11 +122,6 @@ target_sources(${PROJECT} PRIVATE
    ${CLIENT_ROOT_DIR}/platforms/ios/StoreKit2Helper.swift
 )

-set_source_files_properties(
-    ${CMAKE_CURRENT_SOURCE_DIR}/ios/app/Media.xcassets
-    PROPERTIES MACOSX_PACKAGE_LOCATION Resources
-)
-
 target_sources(${PROJECT} PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/ios/app/AmneziaVPNLaunchScreen.storyboard
    ${CMAKE_CURRENT_SOURCE_DIR}/ios/app/Media.xcassets
--- a/client/cmake/macos_ne.cmake
+++ b/client/cmake/macos_ne.cmake
@@ -133,11 +133,6 @@ target_sources(${PROJECT} PRIVATE
    ${CLIENT_ROOT_DIR}/platforms/ios/StoreKit2Helper.swift
 )

-set_source_files_properties(
-    ${CMAKE_CURRENT_SOURCE_DIR}/macos/app/Images.xcassets
-    PROPERTIES MACOSX_PACKAGE_LOCATION Resources
-)
-
 target_sources(${PROJECT} PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/macos/app/Images.xcassets
    ${CMAKE_CURRENT_SOURCE_DIR}/ios/app/PrivacyInfo.xcprivacy
@@ -157,5 +152,5 @@ message(${QtCore_location})
 get_filename_component(QT_BIN_DIR_DETECTED "${QtCore_location}/../../../../../bin" ABSOLUTE)

 add_custom_command(TARGET ${PROJECT} POST_BUILD
-    COMMAND ${QT_BIN_DIR_DETECTED}/macdeployqt $<TARGET_BUNDLE_DIR:AmneziaVPN> -appstore-compliant -qmldir=${CMAKE_CURRENT_SOURCE_DIR} -no-codesign
+    COMMAND ${QT_BIN_DIR_DETECTED}/macdeployqt $<TARGET_BUNDLE_DIR:AmneziaVPN> -appstore-compliant -qmldir=${CMAKE_CURRENT_SOURCE_DIR}
 )
--- a/client/cmake/sources.cmake
+++ b/client/cmake/sources.cmake
@@ -35,8 +35,6 @@ set(HEADERS ${HEADERS}
    ${CLIENT_ROOT_DIR}/core/installers/torInstaller.h
    ${CLIENT_ROOT_DIR}/core/installers/sftpInstaller.h
    ${CLIENT_ROOT_DIR}/core/installers/socks5Installer.h
-    ${CLIENT_ROOT_DIR}/core/installers/mtProxyInstaller.h
-    ${CLIENT_ROOT_DIR}/core/installers/telemtInstaller.h
    ${CLIENT_ROOT_DIR}/core/controllers/appSplitTunnelingController.h
    ${CLIENT_ROOT_DIR}/core/controllers/ipSplitTunnelingController.h
    ${CLIENT_ROOT_DIR}/core/controllers/allowedDnsController.h
@@ -52,16 +50,13 @@ set(HEADERS ${HEADERS}
    ${CLIENT_ROOT_DIR}/core/protocols/qmlRegisterProtocols.h
    ${CLIENT_ROOT_DIR}/ui/utils/pages.h
    ${CLIENT_ROOT_DIR}/ui/utils/qAutoStart.h
-    ${CLIENT_ROOT_DIR}/ui/utils/mtProxyPublicHostInput.h
    ${CLIENT_ROOT_DIR}/core/protocols/vpnProtocol.h
    ${CMAKE_CURRENT_BINARY_DIR}/version.h
    ${CLIENT_ROOT_DIR}/core/utils/selfhosted/sshClient.h
    ${CLIENT_ROOT_DIR}/core/utils/networkUtilities.h
-    ${CLIENT_ROOT_DIR}/core/utils/payloadSender.h
    ${CLIENT_ROOT_DIR}/core/utils/serialization/serialization.h
    ${CLIENT_ROOT_DIR}/core/utils/serialization/transfer.h
    ${CLIENT_ROOT_DIR}/../common/logger/logger.h
-    ${CLIENT_ROOT_DIR}/../common/crypto/cryptoUtils.h
    ${CLIENT_ROOT_DIR}/ui/utils/qmlUtils.h
    ${CLIENT_ROOT_DIR}/core/utils/api/apiUtils.h
    ${CLIENT_ROOT_DIR}/core/utils/osSignalHandler.h
@@ -115,8 +110,6 @@ set(SOURCES ${SOURCES}
    ${CLIENT_ROOT_DIR}/core/installers/torInstaller.cpp
    ${CLIENT_ROOT_DIR}/core/installers/sftpInstaller.cpp
    ${CLIENT_ROOT_DIR}/core/installers/socks5Installer.cpp
-    ${CLIENT_ROOT_DIR}/core/installers/mtProxyInstaller.cpp
-    ${CLIENT_ROOT_DIR}/core/installers/telemtInstaller.cpp
    ${CLIENT_ROOT_DIR}/core/controllers/appSplitTunnelingController.cpp
    ${CLIENT_ROOT_DIR}/core/controllers/ipSplitTunnelingController.cpp
    ${CLIENT_ROOT_DIR}/core/controllers/allowedDnsController.cpp
@@ -130,11 +123,9 @@ set(SOURCES ${SOURCES}
    ${CLIENT_ROOT_DIR}/core/repositories/secureServersRepository.cpp
    ${CLIENT_ROOT_DIR}/core/repositories/secureAppSettingsRepository.cpp
    ${CLIENT_ROOT_DIR}/ui/utils/qAutoStart.cpp
-    ${CLIENT_ROOT_DIR}/ui/utils/mtProxyPublicHostInput.cpp
    ${CLIENT_ROOT_DIR}/core/protocols/vpnProtocol.cpp
    ${CLIENT_ROOT_DIR}/core/utils/selfhosted/sshClient.cpp
    ${CLIENT_ROOT_DIR}/core/utils/networkUtilities.cpp
-    ${CLIENT_ROOT_DIR}/core/utils/payloadSender.cpp
    ${CLIENT_ROOT_DIR}/core/utils/serialization/outbound.cpp
    ${CLIENT_ROOT_DIR}/core/utils/serialization/inbound.cpp
    ${CLIENT_ROOT_DIR}/core/utils/serialization/ss.cpp
@@ -144,7 +135,6 @@ set(SOURCES ${SOURCES}
    ${CLIENT_ROOT_DIR}/core/utils/serialization/vmess.cpp
    ${CLIENT_ROOT_DIR}/core/utils/serialization/vmess_new.cpp
    ${CLIENT_ROOT_DIR}/../common/logger/logger.cpp
-    ${CLIENT_ROOT_DIR}/../common/crypto/cryptoUtils.cpp
    ${CLIENT_ROOT_DIR}/ui/utils/qmlUtils.cpp
    ${CLIENT_ROOT_DIR}/core/utils/api/apiUtils.cpp
    ${CLIENT_ROOT_DIR}/core/utils/serverConfigUtils.cpp
@@ -211,14 +201,12 @@ file(GLOB UI_MODELS_H CONFIGURE_DEPENDS
    ${CLIENT_ROOT_DIR}/ui/models/*.h
    ${CLIENT_ROOT_DIR}/ui/models/protocols/*.h
    ${CLIENT_ROOT_DIR}/ui/models/services/*.h
-    ${CLIENT_ROOT_DIR}/ui/models/utils/*.h
    ${CLIENT_ROOT_DIR}/ui/models/api/*.h
 )
 file(GLOB UI_MODELS_CPP CONFIGURE_DEPENDS
    ${CLIENT_ROOT_DIR}/ui/models/*.cpp
    ${CLIENT_ROOT_DIR}/ui/models/protocols/*.cpp
    ${CLIENT_ROOT_DIR}/ui/models/services/*.cpp
-    ${CLIENT_ROOT_DIR}/ui/models/utils/*.cpp
    ${CLIENT_ROOT_DIR}/ui/models/api/*.cpp
 )

--- a/client/core/configurators/wireguardConfigurator.cpp
+++ b/client/core/configurators/wireguardConfigurator.cpp
@@ -266,7 +266,7 @@ ProtocolConfig WireguardConfigurator::createConfig(const ServerCredentials &cred
    clientConfig.presharedKey = connData.pskKey;
    clientConfig.clientId = connData.clientPubKey;
    clientConfig.allowedIps = QStringList { "0.0.0.0/0", "::/0" };
-    clientConfig.persistentKeepAlive = protocols::wireguard::defaultPersistentKeepAlive;
+    clientConfig.persistentKeepAlive = "25";
    clientConfig.mtu = mtu;
    clientConfig.isObfuscationEnabled = false;
    
--- a/client/core/configurators/xrayConfigurator.cpp
+++ b/client/core/configurators/xrayConfigurator.cpp
@@ -4,7 +4,6 @@
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QJsonArray>
-#include <QThread>
 #include <QUuid>
 #include "logger.h"

@@ -21,641 +20,183 @@
 #include "core/models/protocols/xrayProtocolConfig.h"

 namespace {
-    Logger logger("XrayConfigurator");
-
-    QString normalizeXhttpMode(const QString &m) {
-        const QString t = m.trimmed();
-        if (t.isEmpty() || t.compare(QLatin1String("Auto"), Qt::CaseInsensitive) == 0) {
-            return QStringLiteral("auto");
-        }
-        if (t.compare(QLatin1String("Packet-up"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("packet-up");
-        if (t.compare(QLatin1String("Stream-up"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("stream-up");
-        if (t.compare(QLatin1String("Stream-one"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("stream-one");
-        return t.toLower();
-    }
-
-    // Xray-core: empty → path; "None" in UI → omit (core default path)
-    QString normalizeSessionSeqPlacement(const QString &p)
-    {
-        if (p.isEmpty() || p.compare(QLatin1String("None"), Qt::CaseInsensitive) == 0)
-            return {};
-        return p.toLower();
-    }
-
-    QString normalizeUplinkDataPlacement(const QString &p)
-    {
-        if (p.isEmpty() || p.compare(QLatin1String("Body"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("body");
-        if (p.compare(QLatin1String("Auto"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("auto");
-        if (p.compare(QLatin1String("Query"), Qt::CaseInsensitive) == 0)
-            // "Query" is not valid for uplink payload in splithttp; closest documented mode
-            return QStringLiteral("header");
-        return p.toLower();
-    }
-
-    // splithttp: cookie | header | query | queryInHeader (not "body")
-    QString normalizeXPaddingPlacement(const QString &p)
-    {
-        QString t = p.trimmed();
-        if (t.isEmpty())
-            return QString::fromLatin1(amnezia::protocols::xray::defaultXPaddingPlacement).toLower();
-        if (t.compare(QLatin1String("Body"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("queryInHeader");
-        if (t.contains(QLatin1String("queryInHeader"), Qt::CaseInsensitive)
-            || t.compare(QLatin1String("Query in header"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("queryInHeader");
-        return t.toLower();
-    }
-
-    // splithttp: repeat-x | tokenish
-    QString normalizeXPaddingMethod(const QString &m)
-    {
-        QString t = m.trimmed();
-        if (t.isEmpty() || t.compare(QLatin1String("Repeat-x"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("repeat-x");
-        if (t.compare(QLatin1String("Tokenish"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("tokenish");
-        if (t.compare(QLatin1String("Random"), Qt::CaseInsensitive) == 0
-            || t.compare(QLatin1String("Zero"), Qt::CaseInsensitive) == 0)
-            return QStringLiteral("repeat-x");
-        return t.toLower();
-    }
-
-    void putIntRangeIfAny(QJsonObject &obj, const char *key, QString minV, QString maxV, const char *fallbackMin,
-                          const char *fallbackMax)
-    {
-        if (minV.isEmpty() && maxV.isEmpty())
-            return;
-        if (minV.isEmpty())
-            minV = QString::fromLatin1(fallbackMin);
-        if (maxV.isEmpty())
-            maxV = QString::fromLatin1(fallbackMax);
-        QJsonObject r;
-        r[QStringLiteral("from")] = minV.toInt();
-        r[QStringLiteral("to")] = maxV.toInt();
-        obj[QString::fromUtf8(key)] = r;
-    }
-
-    // Desktop applies this in XrayProtocol::start(); iOS/Android pass JSON straight to libxray — same fixes here.
-    void sanitizeXrayNativeConfig(amnezia::ProtocolConfig &pc)
-    {
-        QString c = pc.nativeConfig();
-        if (c.isEmpty()) {
-            return;
-        }
-        bool changed = false;
-        if (c.contains(QLatin1String("Mozilla/5.0"), Qt::CaseInsensitive)) {
-            c.replace(QLatin1String("Mozilla/5.0"), QString::fromLatin1(amnezia::protocols::xray::defaultFingerprint),
-                      Qt::CaseInsensitive);
-            changed = true;
-        }
-        const QString legacyListen = QString::fromLatin1(amnezia::protocols::xray::defaultLocalAddr);
-        const QString listenOk = QString::fromLatin1(amnezia::protocols::xray::defaultLocalListenAddr);
-        if (c.contains(legacyListen)) {
-            c.replace(legacyListen, listenOk);
-            changed = true;
-        }
-        if (changed) {
-            pc.setNativeConfig(c);
-        }
-    }
-} // namespace
+Logger logger("XrayConfigurator");
+}

 XrayConfigurator::XrayConfigurator(SshSession* sshSession, QObject *parent)
    : ConfiguratorBase(sshSession, parent)
 {
 }

-amnezia::ProtocolConfig XrayConfigurator::processConfigWithLocalSettings(const amnezia::ConnectionSettings &settings,
-                                                                         amnezia::ProtocolConfig protocolConfig)
-{
-    applyDnsToNativeConfig(settings.dns, protocolConfig);
-    sanitizeXrayNativeConfig(protocolConfig);
-    return protocolConfig;
-}
-
-ErrorCode XrayConfigurator::uploadServerConfigJson(const ServerCredentials &credentials, DockerContainer container,
-                                                    const DnsSettings &dnsSettings, const QJsonObject &serverConfig) const
-{
-    const QString updatedConfig = QJsonDocument(serverConfig).toJson();
-    ErrorCode errorCode = m_sshSession->uploadTextFileToContainer(
-            container, credentials, updatedConfig, amnezia::protocols::xray::serverConfigPath,
-            libssh::ScpOverwriteMode::ScpOverwriteExisting);
-    if (errorCode != ErrorCode::NoError) {
-        logger.error() << "Failed to upload updated config";
-        return errorCode;
-    }
-
-    const QString restartScript = QStringLiteral("sudo docker restart $CONTAINER_NAME");
-    errorCode = m_sshSession->runScript(
-            credentials,
-            m_sshSession->replaceVars(restartScript,
-                                      amnezia::genBaseVars(credentials, container, dnsSettings.primaryDns,
-                                                           dnsSettings.secondaryDns)));
-    if (errorCode != ErrorCode::NoError) {
-        logger.error() << "Failed to restart container";
-    }
-    return errorCode;
-}
-
-ErrorCode XrayConfigurator::readRealityKeyFiles(const DockerContainer container, const ServerCredentials &credentials,
-                                                QString &outPublicKey, QString &outShortId) const
-{
-    outPublicKey.clear();
-    outShortId.clear();
-
-    auto readKeyFile = [&](const QString &path, QString &out) -> ErrorCode {
-        for (int attempt = 0; attempt < 3; ++attempt) {
-            ErrorCode fileError = ErrorCode::NoError;
-            out = QString::fromUtf8(m_sshSession->getTextFileFromContainer(container, credentials, path, fileError));
-            out.replace(QLatin1Char('\n'), QString());
-            out.replace(QLatin1Char('\r'), QString());
-            if (fileError == ErrorCode::NoError && !out.isEmpty()) {
-                return ErrorCode::NoError;
-            }
-            if (attempt < 2) {
-                QThread::msleep(500);
-            }
-        }
-        logger.error() << "Xray readRealityKeyFiles: failed path=" << path;
-        return ErrorCode::XrayRealityKeysReadFailed;
-    };
-
-    ErrorCode errorCode = readKeyFile(QString::fromLatin1(amnezia::protocols::xray::PublicKeyPath), outPublicKey);
-    if (errorCode != ErrorCode::NoError) {
-        return errorCode;
-    }
-    return readKeyFile(QString::fromLatin1(amnezia::protocols::xray::shortidPath), outShortId);
-}
-
-QJsonObject XrayConfigurator::mergeStreamSettingsForServerInbound(const XrayServerConfig &srv,
-                                                                  const QJsonObject &existingStreamSettings) const
-{
-    QJsonObject streamSettings = buildStreamSettings(srv, QString());
-
-    if (srv.security != QLatin1String("reality")) {
-        return streamSettings;
-    }
-
-    const QJsonObject newRs = streamSettings[amnezia::protocols::xray::realitySettings].toObject();
-    QJsonObject oldRs = existingStreamSettings[amnezia::protocols::xray::realitySettings].toObject();
-    QJsonObject merged = oldRs.isEmpty() ? newRs : oldRs;
-
-    const QString siteEff = srv.site.isEmpty() ? QString::fromLatin1(amnezia::protocols::xray::defaultSite) : srv.site;
-    const QString sniEff = srv.sni.isEmpty() ? siteEff : srv.sni;
-
-    if (newRs.contains(amnezia::protocols::xray::fingerprint)) {
-        merged[amnezia::protocols::xray::fingerprint] = newRs[amnezia::protocols::xray::fingerprint];
-    }
-    merged[amnezia::protocols::xray::serverNames] = QJsonArray { sniEff };
-    if (!merged.contains(QStringLiteral("dest"))) {
-        merged[QStringLiteral("dest")] = siteEff + QStringLiteral(":443");
-    }
-
-    streamSettings[amnezia::protocols::xray::realitySettings] = merged;
-    return streamSettings;
-}
-
-ErrorCode XrayConfigurator::applyServerSettingsToRemote(const ServerCredentials &credentials, DockerContainer container,
-                                                        ContainerConfig &containerConfig, const DnsSettings &dnsSettings,
-                                                        bool appendNewClient, QString *outClientId)
-{
-    ErrorCode errorCode = ErrorCode::NoError;
-    const auto *xrayCfg = containerConfig.protocolConfig.as<XrayProtocolConfig>();
-    if (!xrayCfg) {
-        logger.error() << "Xray applyServerSettings: missing XrayProtocolConfig";
-        return ErrorCode::InternalError;
-    }
-
-    const XrayServerConfig &srv = xrayCfg->serverConfig;
-    if (srv.isThirdPartyConfig) {
-        logger.info() << "Xray applyServerSettings: skipped (third-party/native profile)";
-        if (outClientId && xrayCfg->hasClientConfig()) {
-            *outClientId = xrayCfg->clientConfig->id;
-        }
-        return ErrorCode::NoError;
-    }
-
-    logger.info() << "Xray applyServerSettings: start"
-                    << "container=" << static_cast<int>(container) << "host=" << credentials.hostName
-                    << "transport=" << srv.transport << "security=" << srv.security << "port=" << srv.port
-                    << "appendClient=" << appendNewClient;
-    const QString flowValue = srv.flow;
-    QString realityPublicKey;
-    QString realityShortId;
-    if (srv.security == QLatin1String("reality")) {
-        errorCode = readRealityKeyFiles(container, credentials, realityPublicKey, realityShortId);
-        if (errorCode != ErrorCode::NoError) {
-            logger.error() << "Xray applyServerSettings: readRealityKeyFiles failed, error="
-                           << static_cast<int>(errorCode);
-            return errorCode;
-        }
-    }
-
-    QString currentConfig = m_sshSession->getTextFileFromContainer(
-            container, credentials, amnezia::protocols::xray::serverConfigPath, errorCode);
-    if (errorCode != ErrorCode::NoError) {
-        logger.error() << "Xray applyServerSettings: getTextFileFromContainer failed, error="
-                       << static_cast<int>(errorCode) << "path=" << amnezia::protocols::xray::serverConfigPath;
-        return errorCode;
-    }
-    logger.info() << "Xray applyServerSettings: read server config, bytes=" << currentConfig.size();
-
-    QJsonDocument doc = QJsonDocument::fromJson(currentConfig.toUtf8());
-    if (doc.isNull() || !doc.isObject()) {
-        logger.error() << "Failed to parse server config JSON";
-        return ErrorCode::XrayServerConfigInvalid;
-    }
-
-    QJsonObject serverConfig = doc.object();
-    if (!serverConfig.contains(amnezia::protocols::xray::inbounds)) {
-        logger.error() << "Server config missing 'inbounds' field";
-        return ErrorCode::XrayServerConfigInvalid;
-    }
-
-    QJsonArray inbounds = serverConfig[amnezia::protocols::xray::inbounds].toArray();
-    if (inbounds.isEmpty()) {
-        logger.error() << "Server config has empty 'inbounds' array";
-        return ErrorCode::XrayServerConfigInvalid;
-    }
-
-    QJsonObject inbound = inbounds[0].toObject();
-    if (!inbound.contains(amnezia::protocols::xray::settings)) {
-        logger.error() << "Inbound missing 'settings' field";
-        return ErrorCode::XrayServerConfigInvalid;
-    }
-
-    const QJsonObject existingStream = inbound[amnezia::protocols::xray::streamSettings].toObject();
-    inbound[amnezia::protocols::xray::streamSettings] = mergeStreamSettingsForServerInbound(srv, existingStream);
-
-    if (!srv.port.isEmpty()) {
-        inbound[amnezia::protocols::xray::port] = srv.port.toInt();
-    }
-
-    QJsonObject settings = inbound[amnezia::protocols::xray::settings].toObject();
-    if (!settings.contains(amnezia::protocols::xray::clients)) {
-        settings[amnezia::protocols::xray::clients] = QJsonArray {};
-    }
-
-    QJsonArray clients = settings[amnezia::protocols::xray::clients].toArray();
-    QString clientId;
-
-    if (appendNewClient) {
-        clientId = QUuid::createUuid().toString(QUuid::WithoutBraces);
-        QJsonObject clientEntry;
-        clientEntry[amnezia::protocols::xray::id] = clientId;
-        if (!flowValue.isEmpty()) {
-            clientEntry[amnezia::protocols::xray::flow] = flowValue;
-        }
-        clients.append(clientEntry);
-    } else {
-        if (clients.isEmpty()) {
-            logger.error() << "Server config has no VLESS clients";
-            return ErrorCode::XrayServerNoVlessClients;
-        }
-        clientId = clients[0].toObject()[amnezia::protocols::xray::id].toString();
-        if (clientId.isEmpty()) {
-            logger.error() << "Server config VLESS client has empty id";
-            return ErrorCode::XrayServerNoVlessClients;
-        }
-        QJsonArray updatedClients;
-        for (const QJsonValue &v : clients) {
-            QJsonObject c = v.toObject();
-            if (flowValue.isEmpty()) {
-                c.remove(amnezia::protocols::xray::flow);
-            } else {
-                c[amnezia::protocols::xray::flow] = flowValue;
-            }
-            updatedClients.append(c);
-        }
-        clients = updatedClients;
-    }
-
-    settings[amnezia::protocols::xray::clients] = clients;
-    inbound[amnezia::protocols::xray::settings] = settings;
-    inbounds[0] = inbound;
-    serverConfig[amnezia::protocols::xray::inbounds] = inbounds;
-
-    errorCode = uploadServerConfigJson(credentials, container, dnsSettings, serverConfig);
-    if (errorCode != ErrorCode::NoError) {
-        logger.error() << "Xray applyServerSettings: upload/restart failed, error=" << static_cast<int>(errorCode);
-        return errorCode;
-    }
-    logger.info() << "Xray applyServerSettings: server config uploaded and container restarted";
-
-    if (outClientId) {
-        *outClientId = clientId;
-    }
-
-    XrayProtocolConfig updated =
-            buildClientProtocolConfig(credentials, container, srv, clientId, errorCode, realityPublicKey, realityShortId);
-    if (errorCode != ErrorCode::NoError) {
-        logger.error() << "Xray applyServerSettings: buildClientProtocolConfig failed, error="
-                       << static_cast<int>(errorCode);
-        return errorCode;
-    }
-    containerConfig.protocolConfig = updated;
-    logger.info() << "Xray applyServerSettings: done, clientId=" << clientId;
-    return ErrorCode::NoError;
-}
-
 QString XrayConfigurator::prepareServerConfig(const ServerCredentials &credentials, DockerContainer container,
                                               const ContainerConfig &containerConfig,
                                               const DnsSettings &dnsSettings,
                                               ErrorCode &errorCode)
 {
-    ContainerConfig mutableConfig = containerConfig;
-    QString clientId;
-    const ErrorCode applyError =
-            applyServerSettingsToRemote(credentials, container, mutableConfig, dnsSettings, true, &clientId);
-    errorCode = applyError;
-    if (applyError != ErrorCode::NoError || clientId.isEmpty()) {
-        return QString();
+    // Generate new UUID for client
+    QString clientId = QUuid::createUuid().toString(QUuid::WithoutBraces);
+    
+    // Get current server config
+    QString currentConfig = m_sshSession->getTextFileFromContainer(
+        container, credentials, amnezia::protocols::xray::serverConfigPath, errorCode);
+    
+    if (errorCode != ErrorCode::NoError) {
+        logger.error() << "Failed to get server config file";
+        return "";
    }
+
+    // Parse current config as JSON
+    QJsonDocument doc = QJsonDocument::fromJson(currentConfig.toUtf8());
+    if (doc.isNull() || !doc.isObject()) {
+        logger.error() << "Failed to parse server config JSON";
+        errorCode = ErrorCode::InternalError;
+        return "";
+    }
+
+    QJsonObject serverConfig = doc.object();
+    
+    // Validate server config structure
+    if (!serverConfig.contains(amnezia::protocols::xray::inbounds)) {
+        logger.error() << "Server config missing 'inbounds' field";
+        errorCode = ErrorCode::InternalError;
+        return "";
+    }
+
+    QJsonArray inbounds = serverConfig[amnezia::protocols::xray::inbounds].toArray();
+    if (inbounds.isEmpty()) {
+        logger.error() << "Server config has empty 'inbounds' array";
+        errorCode = ErrorCode::InternalError;
+        return "";
+    }
+    
+    QJsonObject inbound = inbounds[0].toObject();
+    if (!inbound.contains(amnezia::protocols::xray::settings)) {
+        logger.error() << "Inbound missing 'settings' field";
+        errorCode = ErrorCode::InternalError;
+        return "";
+    }
+
+    QJsonObject settings = inbound[amnezia::protocols::xray::settings].toObject();
+    if (!settings.contains(amnezia::protocols::xray::clients)) {
+        logger.error() << "Settings missing 'clients' field";
+        errorCode = ErrorCode::InternalError;
+        return "";
+    }
+
+    QJsonArray clients = settings[amnezia::protocols::xray::clients].toArray();
+    
+    // Create configuration for new client
+    QJsonObject clientConfig {
+        {amnezia::protocols::xray::id, clientId},
+        {amnezia::protocols::xray::flow, "xtls-rprx-vision"}
+    };
+    
+    clients.append(clientConfig);
+    
+    // Update config
+    settings[amnezia::protocols::xray::clients] = clients;
+    inbound[amnezia::protocols::xray::settings] = settings;
+    inbounds[0] = inbound;
+    serverConfig[amnezia::protocols::xray::inbounds] = inbounds;
+    
+    // Save updated config to server
+    QString updatedConfig = QJsonDocument(serverConfig).toJson();
+    errorCode = m_sshSession->uploadTextFileToContainer(
+        container, 
+        credentials, 
+        updatedConfig,
+        amnezia::protocols::xray::serverConfigPath,
+        libssh::ScpOverwriteMode::ScpOverwriteExisting
+    );
+    if (errorCode != ErrorCode::NoError) {
+        logger.error() << "Failed to upload updated config";
+        return "";
+    }
+
+    // Restart container
+    QString restartScript = QString("sudo docker restart $CONTAINER_NAME");
+    errorCode = m_sshSession->runScript(
+        credentials, 
+        m_sshSession->replaceVars(restartScript, amnezia::genBaseVars(credentials, container, dnsSettings.primaryDns, dnsSettings.secondaryDns))
+    );
+
+    if (errorCode != ErrorCode::NoError) {
+        logger.error() << "Failed to restart container";
+        return "";
+    }
+
    return clientId;
 }

-XrayProtocolConfig XrayConfigurator::buildClientProtocolConfig(const ServerCredentials &credentials,
-                                                               DockerContainer container,
-                                                               const XrayServerConfig &srv, const QString &clientId,
-                                                               ErrorCode &errorCode,
-                                                               const QString &prefetchedRealityPublicKey,
-                                                               const QString &prefetchedRealityShortId) const
-{
-    QString xrayPublicKey = prefetchedRealityPublicKey;
-    QString xrayShortId = prefetchedRealityShortId;
-
-    if (srv.security == QLatin1String("reality")) {
-        if (xrayPublicKey.isEmpty() || xrayShortId.isEmpty()) {
-            errorCode = readRealityKeyFiles(container, credentials, xrayPublicKey, xrayShortId);
-            if (errorCode != ErrorCode::NoError) {
-                return {};
-            }
-        }
-    }
-
-    QJsonObject userObj;
-    userObj[amnezia::protocols::xray::id] = clientId;
-    userObj[amnezia::protocols::xray::encryption] = QStringLiteral("none");
-    if (!srv.flow.isEmpty()) {
-        userObj[amnezia::protocols::xray::flow] = srv.flow;
-    }
-
-    QJsonObject vnextEntry;
-    vnextEntry[amnezia::protocols::xray::address] = credentials.hostName;
-    vnextEntry[amnezia::protocols::xray::port] =
-            srv.port.isEmpty() ? QString(amnezia::protocols::xray::defaultPort).toInt() : srv.port.toInt();
-    vnextEntry[amnezia::protocols::xray::users] = QJsonArray { userObj };
-
-    QJsonObject outboundSettings;
-    outboundSettings[amnezia::protocols::xray::vnext] = QJsonArray { vnextEntry };
-
-    QJsonObject outbound;
-    outbound[QStringLiteral("protocol")] = QStringLiteral("vless");
-    outbound[amnezia::protocols::xray::settings] = outboundSettings;
-
-    QJsonObject streamObj = buildStreamSettings(srv, clientId);
-    if (srv.security == QLatin1String("reality")) {
-        QJsonObject rs = streamObj[amnezia::protocols::xray::realitySettings].toObject();
-        rs[amnezia::protocols::xray::publicKey] = xrayPublicKey;
-        rs[amnezia::protocols::xray::shortId] = xrayShortId;
-        rs[amnezia::protocols::xray::spiderX] = QString();
-        streamObj[amnezia::protocols::xray::realitySettings] = rs;
-    }
-
-    outbound[amnezia::protocols::xray::streamSettings] = streamObj;
-
-    QJsonObject inboundObj;
-    inboundObj[QStringLiteral("listen")] = amnezia::protocols::xray::defaultLocalListenAddr;
-    inboundObj[amnezia::protocols::xray::port] = amnezia::protocols::xray::defaultLocalProxyPort;
-    inboundObj[QStringLiteral("protocol")] = QStringLiteral("socks");
-    inboundObj[amnezia::protocols::xray::settings] = QJsonObject { { QStringLiteral("udp"), true } };
-
-    QJsonObject clientJson;
-    clientJson[QStringLiteral("log")] = QJsonObject { { QStringLiteral("loglevel"), QStringLiteral("error") } };
-    clientJson[amnezia::protocols::xray::inbounds] = QJsonArray { inboundObj };
-    clientJson[amnezia::protocols::xray::outbounds] = QJsonArray { outbound };
-
-    const QString config = QString::fromUtf8(QJsonDocument(clientJson).toJson(QJsonDocument::Compact));
-
-    XrayProtocolConfig protocolConfig;
-    protocolConfig.serverConfig = srv;
-
-    XrayClientConfig clientConfig;
-    clientConfig.nativeConfig = config;
-    clientConfig.localPort = QString(amnezia::protocols::xray::defaultLocalProxyPort);
-    clientConfig.id = clientId;
-    protocolConfig.setClientConfig(clientConfig);
-
-    return protocolConfig;
-}
-
-QJsonObject XrayConfigurator::buildStreamSettings(const XrayServerConfig &srv, const QString &clientId) const
-{
-    QJsonObject streamSettings;
-    const auto &xhttp = srv.xhttp;
-    const auto &mkcp = srv.mkcp;
-    namespace px = amnezia::protocols::xray;
-
-    QString networkValue = QStringLiteral("tcp");
-    if (srv.transport == QLatin1String("xhttp"))
-        networkValue = QStringLiteral("xhttp");
-    else if (srv.transport == QLatin1String("mkcp"))
-        networkValue = QStringLiteral("kcp");
-    streamSettings[px::network] = networkValue;
-
-    streamSettings[px::security] = srv.security;
-
-    if (srv.security == QLatin1String("tls")) {
-        QJsonObject tlsSettings;
-        const QString sniEff = srv.sni.isEmpty() ? QString::fromLatin1(px::defaultSni) : srv.sni;
-        tlsSettings[px::serverName] = sniEff;
-        const QString alpnEff = srv.alpn.isEmpty() ? QString::fromLatin1(px::defaultAlpn) : srv.alpn;
-        QJsonArray alpnArray;
-        for (const QString &a : alpnEff.split(QLatin1Char(','))) {
-            const QString t = a.trimmed();
-            if (!t.isEmpty())
-                alpnArray.append(t);
-        }
-        if (!alpnArray.isEmpty())
-            tlsSettings[QStringLiteral("alpn")] = alpnArray;
-        const QString fpEff = srv.fingerprint.isEmpty() ? QString::fromLatin1(px::defaultFingerprint) : srv.fingerprint;
-        tlsSettings[px::fingerprint] = fpEff;
-        streamSettings[QStringLiteral("tlsSettings")] = tlsSettings;
-    }
-
-    if (srv.security == QLatin1String("reality")) {
-        QJsonObject realSettings;
-        const QString fpEff = srv.fingerprint.isEmpty() ? QString::fromLatin1(px::defaultFingerprint) : srv.fingerprint;
-        realSettings[px::fingerprint] = fpEff;
-        const QString sniEff = srv.sni.isEmpty() ? QString::fromLatin1(px::defaultSni) : srv.sni;
-        realSettings[px::serverName] = sniEff;
-        streamSettings[px::realitySettings] = realSettings;
-    }
-
-    // XHTTP — JSON must match Xray-core SplitHTTPConfig (flat xPadding fields, see transport_internet.go)
-    if (srv.transport == QLatin1String("xhttp")) {
-        QJsonObject xo;
-        const QString hostEff = xhttp.host.isEmpty() ? QString::fromLatin1(px::defaultXhttpHost) : xhttp.host;
-        xo[QStringLiteral("host")] = hostEff;
-        if (!xhttp.path.isEmpty())
-            xo[QStringLiteral("path")] = xhttp.path;
-        xo[QStringLiteral("mode")] = normalizeXhttpMode(xhttp.mode);
-
-        if (xhttp.headersTemplate.compare(QLatin1String("HTTP"), Qt::CaseInsensitive) == 0) {
-            QJsonObject headers;
-            headers[QStringLiteral("Host")] = hostEff;
-            xo[QStringLiteral("headers")] = headers;
-        }
-
-        const QString methodEff =
-                xhttp.uplinkMethod.isEmpty() ? QString::fromLatin1(px::defaultXhttpUplinkMethod) : xhttp.uplinkMethod;
-        xo[QStringLiteral("uplinkHTTPMethod")] = methodEff.toUpper();
-
-        xo[QStringLiteral("noGRPCHeader")] = xhttp.disableGrpc;
-        xo[QStringLiteral("noSSEHeader")] = xhttp.disableSse;
-
-        const QString sessPl = normalizeSessionSeqPlacement(xhttp.sessionPlacement);
-        if (!sessPl.isEmpty())
-            xo[QStringLiteral("sessionPlacement")] = sessPl;
-        const QString seqPl = normalizeSessionSeqPlacement(xhttp.seqPlacement);
-        if (!seqPl.isEmpty())
-            xo[QStringLiteral("seqPlacement")] = seqPl;
-        if (!xhttp.sessionKey.isEmpty())
-            xo[QStringLiteral("sessionKey")] = xhttp.sessionKey;
-        if (!xhttp.seqKey.isEmpty())
-            xo[QStringLiteral("seqKey")] = xhttp.seqKey;
-
-        xo[QStringLiteral("uplinkDataPlacement")] = normalizeUplinkDataPlacement(xhttp.uplinkDataPlacement);
-        if (!xhttp.uplinkDataKey.isEmpty())
-            xo[QStringLiteral("uplinkDataKey")] = xhttp.uplinkDataKey;
-
-        const QString ucs = xhttp.uplinkChunkSize.isEmpty() ? QString::fromLatin1(px::defaultXhttpUplinkChunkSize)
-                                                            : xhttp.uplinkChunkSize;
-        if (!ucs.isEmpty() && ucs != QLatin1String("0")) {
-            const int v = ucs.toInt();
-            QJsonObject chunkR;
-            chunkR[QStringLiteral("from")] = v;
-            chunkR[QStringLiteral("to")] = v;
-            xo[QStringLiteral("uplinkChunkSize")] = chunkR;
-        }
-
-        if (!xhttp.scMaxBufferedPosts.isEmpty())
-            xo[QStringLiteral("scMaxBufferedPosts")] = xhttp.scMaxBufferedPosts.toLongLong();
-
-        putIntRangeIfAny(xo, "scMaxEachPostBytes", xhttp.scMaxEachPostBytesMin, xhttp.scMaxEachPostBytesMax,
-                         px::defaultXhttpScMaxEachPostBytesMin, px::defaultXhttpScMaxEachPostBytesMax);
-        putIntRangeIfAny(xo, "scMinPostsIntervalMs", xhttp.scMinPostsIntervalMsMin, xhttp.scMinPostsIntervalMsMax,
-                         px::defaultXhttpScMinPostsIntervalMsMin, px::defaultXhttpScMinPostsIntervalMsMax);
-        putIntRangeIfAny(xo, "scStreamUpServerSecs", xhttp.scStreamUpServerSecsMin, xhttp.scStreamUpServerSecsMax,
-                         px::defaultXhttpScStreamUpServerSecsMin, px::defaultXhttpScStreamUpServerSecsMax);
-
-        const auto &pad = xhttp.xPadding;
-        xo[QStringLiteral("xPaddingObfsMode")] = pad.obfsMode;
-        if (pad.obfsMode) {
-            if (!pad.bytesMin.isEmpty() || !pad.bytesMax.isEmpty()) {
-                QJsonObject br;
-                const int fromV = pad.bytesMin.isEmpty() ? 1 : pad.bytesMin.toInt();
-                int toV = pad.bytesMax.isEmpty() ? 256 : pad.bytesMax.toInt();
-                if (toV < fromV)
-                    toV = fromV;
-                br[QStringLiteral("from")] = fromV;
-                br[QStringLiteral("to")] = toV;
-                xo[QStringLiteral("xPaddingBytes")] = br;
-            }
-            xo[QStringLiteral("xPaddingKey")] = pad.key.isEmpty() ? QStringLiteral("x_padding") : pad.key;
-            xo[QStringLiteral("xPaddingHeader")] = pad.header.isEmpty() ? QStringLiteral("X-Padding") : pad.header;
-            xo[QStringLiteral("xPaddingPlacement")] = normalizeXPaddingPlacement(
-                    pad.placement.isEmpty() ? QString::fromLatin1(px::defaultXPaddingPlacement) : pad.placement);
-            xo[QStringLiteral("xPaddingMethod")] = normalizeXPaddingMethod(
-                    pad.method.isEmpty() ? QString::fromLatin1(px::defaultXPaddingMethod) : pad.method);
-        }
-
-        // xmux: Xray has no "enabled" flag; omit object when UI disables multiplex tuning.
-        if (xhttp.xmux.enabled) {
-            QJsonObject mux;
-            auto addMuxRange = [&](const char *key, const QString &a, const QString &b) {
-                if (a.isEmpty() && b.isEmpty())
-                    return;
-                QJsonObject r;
-                r[QStringLiteral("from")] = a.isEmpty() ? 0 : a.toInt();
-                r[QStringLiteral("to")] = b.isEmpty() ? 0 : b.toInt();
-                mux[QString::fromUtf8(key)] = r;
-            };
-            addMuxRange("maxConcurrency", xhttp.xmux.maxConcurrencyMin, xhttp.xmux.maxConcurrencyMax);
-            addMuxRange("maxConnections", xhttp.xmux.maxConnectionsMin, xhttp.xmux.maxConnectionsMax);
-            addMuxRange("cMaxReuseTimes", xhttp.xmux.cMaxReuseTimesMin, xhttp.xmux.cMaxReuseTimesMax);
-            addMuxRange("hMaxRequestTimes", xhttp.xmux.hMaxRequestTimesMin, xhttp.xmux.hMaxRequestTimesMax);
-            addMuxRange("hMaxReusableSecs", xhttp.xmux.hMaxReusableSecsMin, xhttp.xmux.hMaxReusableSecsMax);
-            if (!xhttp.xmux.hKeepAlivePeriod.isEmpty())
-                mux[QStringLiteral("hKeepAlivePeriod")] = xhttp.xmux.hKeepAlivePeriod.toLongLong();
-            if (!mux.isEmpty())
-                xo[QStringLiteral("xmux")] = mux;
-        }
-
-        streamSettings[QStringLiteral("xhttpSettings")] = xo;
-    }
-
-    if (srv.transport == QLatin1String("mkcp")) {
-        QJsonObject kcpObj;
-        const QString ttiEff = mkcp.tti.isEmpty() ? QString::fromLatin1(px::defaultMkcpTti) : mkcp.tti;
-        const QString upEff = mkcp.uplinkCapacity.isEmpty() ? QString::fromLatin1(px::defaultMkcpUplinkCapacity)
-                                                            : mkcp.uplinkCapacity;
-        const QString downEff = mkcp.downlinkCapacity.isEmpty() ? QString::fromLatin1(px::defaultMkcpDownlinkCapacity)
-                                                                : mkcp.downlinkCapacity;
-        const QString rbufEff = mkcp.readBufferSize.isEmpty() ? QString::fromLatin1(px::defaultMkcpReadBufferSize)
-                                                              : mkcp.readBufferSize;
-        const QString wbufEff = mkcp.writeBufferSize.isEmpty() ? QString::fromLatin1(px::defaultMkcpWriteBufferSize)
-                                                               : mkcp.writeBufferSize;
-        kcpObj[QStringLiteral("tti")] = ttiEff.toInt();
-        kcpObj[QStringLiteral("uplinkCapacity")] = upEff.toInt();
-        kcpObj[QStringLiteral("downlinkCapacity")] = downEff.toInt();
-        kcpObj[QStringLiteral("readBufferSize")] = rbufEff.toInt();
-        kcpObj[QStringLiteral("writeBufferSize")] = wbufEff.toInt();
-        kcpObj[QStringLiteral("congestion")] = mkcp.congestion;
-        streamSettings[QStringLiteral("kcpSettings")] = kcpObj;
-    }
-
-    return streamSettings;
-}
-
 ProtocolConfig XrayConfigurator::createConfig(const ServerCredentials &credentials, DockerContainer container,
-                                              const ContainerConfig &containerConfig,
-                                              const DnsSettings &dnsSettings,
-                                              ErrorCode &errorCode)
+                                               const ContainerConfig &containerConfig,
+                                               const DnsSettings &dnsSettings,
+                                               ErrorCode &errorCode)
 {
-    if (const auto *xrayCfg = containerConfig.protocolConfig.as<XrayProtocolConfig>()) {
-        if (xrayCfg->serverConfig.isThirdPartyConfig && xrayCfg->hasClientConfig()) {
-            logger.info() << "Xray createConfig: returning existing third-party client config without server SSH";
-            return *xrayCfg;
-        }
+    const XrayServerConfig* serverConfig = nullptr;
+    if (auto* xrayConfig = containerConfig.protocolConfig.as<XrayProtocolConfig>()) {
+        serverConfig = &xrayConfig->serverConfig;
    }
-
-    const XrayServerConfig *serverConfig = nullptr;
-    if (const auto *xrayCfg = containerConfig.protocolConfig.as<XrayProtocolConfig>()) {
-        serverConfig = &xrayCfg->serverConfig;
-    }
-
-    if (!serverConfig) {
-        logger.error() << "No XrayProtocolConfig found";
+    
+    QString xrayClientId = prepareServerConfig(credentials, container, containerConfig, dnsSettings, errorCode);
+    if (errorCode != ErrorCode::NoError || xrayClientId.isEmpty()) {
+        logger.error() << "Failed to prepare server config";
        errorCode = ErrorCode::InternalError;
        return XrayProtocolConfig{};
    }

-    const XrayServerConfig &srv = *serverConfig;
-
-    QString xrayClientId = prepareServerConfig(credentials, container, containerConfig, dnsSettings, errorCode);
-    if (errorCode != ErrorCode::NoError || xrayClientId.isEmpty()) {
-        logger.error() << "Failed to prepare server config";
-        if (errorCode == ErrorCode::NoError) {
-            errorCode = ErrorCode::InternalError;
-        }
+    amnezia::ScriptVars vars = amnezia::genBaseVars(credentials, container, dnsSettings.primaryDns, dnsSettings.secondaryDns);
+    vars.append(amnezia::genProtocolVarsForContainer(container, containerConfig));
+    QString config = m_sshSession->replaceVars(amnezia::scriptData(ProtocolScriptType::xray_template, container), vars);
+    
+    if (config.isEmpty()) {
+        logger.error() << "Failed to get config template";
+        errorCode = ErrorCode::InternalError;
        return XrayProtocolConfig{};
    }

-    return buildClientProtocolConfig(credentials, container, srv, xrayClientId, errorCode);
-}
+    QString xrayPublicKey =
+            m_sshSession->getTextFileFromContainer(container, credentials, amnezia::protocols::xray::PublicKeyPath, errorCode);
+    if (errorCode != ErrorCode::NoError || xrayPublicKey.isEmpty()) {
+        logger.error() << "Failed to get public key";
+        errorCode = ErrorCode::InternalError;
+        return XrayProtocolConfig{};
+    }
+    xrayPublicKey.replace("\n", "");
+    
+    QString xrayShortId =
+            m_sshSession->getTextFileFromContainer(container, credentials, amnezia::protocols::xray::shortidPath, errorCode);
+    if (errorCode != ErrorCode::NoError || xrayShortId.isEmpty()) {
+        logger.error() << "Failed to get short ID";
+        errorCode = ErrorCode::InternalError;
+        return XrayProtocolConfig{};
+    }
+    xrayShortId.replace("\n", "");
+
+    if (!config.contains("$XRAY_CLIENT_ID") || !config.contains("$XRAY_PUBLIC_KEY") || !config.contains("$XRAY_SHORT_ID")) {
+        logger.error() << "Config template missing required variables:"
+                      << "XRAY_CLIENT_ID:" << !config.contains("$XRAY_CLIENT_ID")
+                      << "XRAY_PUBLIC_KEY:" << !config.contains("$XRAY_PUBLIC_KEY")
+                      << "XRAY_SHORT_ID:" << !config.contains("$XRAY_SHORT_ID");
+        errorCode = ErrorCode::InternalError;
+        return XrayProtocolConfig{};
+    }
+
+    config.replace("$XRAY_CLIENT_ID", xrayClientId);
+    config.replace("$XRAY_PUBLIC_KEY", xrayPublicKey);
+    config.replace("$XRAY_SHORT_ID", xrayShortId);
+
+    XrayProtocolConfig protocolConfig;
+    if (serverConfig) {
+        protocolConfig.serverConfig = *serverConfig;
+    }
+    
+    XrayClientConfig clientConfig;
+    clientConfig.nativeConfig = config;
+    clientConfig.localPort = "";
+    clientConfig.id = xrayClientId;
+    
+    protocolConfig.setClientConfig(clientConfig);
+    
+    return protocolConfig;
+}
--- a/client/core/configurators/xrayConfigurator.h
+++ b/client/core/configurators/xrayConfigurator.h
@@ -2,13 +2,11 @@
 #define XRAY_CONFIGURATOR_H

 #include <QObject>
-#include <QJsonObject>

 #include "configuratorBase.h"
 #include "core/utils/errorCodes.h"
 #include "core/utils/routeModes.h"
 #include "core/utils/commonStructs.h"
-#include "core/models/protocols/xrayProtocolConfig.h"

 class XrayConfigurator : public ConfiguratorBase
 {
@@ -20,42 +18,10 @@ public:
                                const amnezia::DnsSettings &dnsSettings,
                                amnezia::ErrorCode &errorCode) override;

-    amnezia::ProtocolConfig processConfigWithLocalSettings(const amnezia::ConnectionSettings &settings,
-                                                           amnezia::ProtocolConfig protocolConfig) override;
-
-    amnezia::ErrorCode applyServerSettingsToRemote(const amnezia::ServerCredentials &credentials,
-                                                   amnezia::DockerContainer container,
-                                                   amnezia::ContainerConfig &containerConfig,
-                                                   const amnezia::DnsSettings &dnsSettings,
-                                                   bool appendNewClient,
-                                                   QString *outClientId = nullptr);
-
 private:
    QString prepareServerConfig(const amnezia::ServerCredentials &credentials, amnezia::DockerContainer container, const amnezia::ContainerConfig &containerConfig,
                                const amnezia::DnsSettings &dnsSettings,
                                amnezia::ErrorCode &errorCode);
-
-    amnezia::ErrorCode uploadServerConfigJson(const amnezia::ServerCredentials &credentials, amnezia::DockerContainer container,
-                                              const amnezia::DnsSettings &dnsSettings, const QJsonObject &serverConfig) const;
-
-    amnezia::XrayProtocolConfig buildClientProtocolConfig(const amnezia::ServerCredentials &credentials,
-                                                          amnezia::DockerContainer container,
-                                                          const amnezia::XrayServerConfig &srv,
-                                                          const QString &clientId,
-                                                          amnezia::ErrorCode &errorCode,
-                                                          const QString &prefetchedRealityPublicKey = {},
-                                                          const QString &prefetchedRealityShortId = {}) const;
-
-    amnezia::ErrorCode readRealityKeyFiles(amnezia::DockerContainer container,
-                                           const amnezia::ServerCredentials &credentials,
-                                           QString &outPublicKey,
-                                           QString &outShortId) const;
-
-    QJsonObject mergeStreamSettingsForServerInbound(const amnezia::XrayServerConfig &srv,
-                                                    const QJsonObject &existingStreamSettings) const;
-
-    QJsonObject buildStreamSettings(const amnezia::XrayServerConfig &srv,
-                                    const QString &clientId) const;
 };

 #endif // XRAY_CONFIGURATOR_H
--- a/client/core/controllers/api/newsController.cpp
+++ b/client/core/controllers/api/newsController.cpp
@@ -78,8 +78,7 @@ QFuture<QPair<ErrorCode, QJsonArray>> NewsController::fetchNews()
            m_appSettingsRepository->getGatewayEndpoint(),
            m_appSettingsRepository->isDevGatewayEnv(),
            apiDefs::requestTimeoutMsecs,
-            m_appSettingsRepository->isStrictKillSwitchEnabled(),
-            m_appSettingsRepository);
+            m_appSettingsRepository->isStrictKillSwitchEnabled());

    QJsonObject payload;
    payload.insert("locale", m_appSettingsRepository->getAppLanguage().name().split("_").first());
--- a/client/core/controllers/api/servicesCatalogController.cpp
+++ b/client/core/controllers/api/servicesCatalogController.cpp
@@ -242,7 +242,7 @@ ErrorCode ServicesCatalogController::fillAvailableServices(QJsonObject &services
 ErrorCode ServicesCatalogController::executeRequest(const QString &endpoint, const QJsonObject &apiPayload, QByteArray &responseBody)
 {
    GatewayController gatewayController(m_appSettingsRepository->getGatewayEndpoint(), m_appSettingsRepository->isDevGatewayEnv(), apiDefs::requestTimeoutMsecs,
-                                        m_appSettingsRepository->isStrictKillSwitchEnabled(), m_appSettingsRepository);
+                                        m_appSettingsRepository->isStrictKillSwitchEnabled());
    return gatewayController.post(endpoint, apiPayload, responseBody);
 }

--- a/client/core/controllers/api/subscriptionController.cpp
+++ b/client/core/controllers/api/subscriptionController.cpp
@@ -5,7 +5,6 @@
 #include <QEventLoop>
 #include <QFutureWatcher>
 #include <QJsonDocument>
-#include <QJsonObject>
 #include <QPromise>
 #include <QSet>
 #include <QSysInfo>
@@ -56,38 +55,6 @@ QString getSubscriptionStatusForRenewal(const ApiConfig &apiConfig)

    return QStringLiteral("active");
 }
-
-QString normalizeCaptchaSolution(const QString &captchaSolution)
-{
-    QString normalizedSolution;
-    normalizedSolution.reserve(captchaSolution.size());
-    for (const QChar &ch : captchaSolution) {
-        const ushort u = ch.unicode();
-        if (u >= '0' && u <= '9') {
-            normalizedSolution += ch;
-        } else if (u >= 0xFF10 && u <= 0xFF19) {
-            normalizedSolution += QChar(static_cast<char16_t>(u - 0xFF10 + '0'));
-        }
-    }
-    return normalizedSolution.isEmpty() ? captchaSolution.trimmed() : normalizedSolution;
-}
-
-bool fillCaptchaInfoFromResponse(const QByteArray &responseBody, SubscriptionController::CaptchaInfo &captchaInfo)
-{
-    const QJsonDocument jsonDoc = QJsonDocument::fromJson(responseBody);
-    if (!jsonDoc.isObject()) {
-        return false;
-    }
-    const QJsonObject jsonObj = jsonDoc.object();
-    if (!jsonObj.contains(QStringLiteral("captcha_id")) || !jsonObj.contains(QStringLiteral("captcha_image"))) {
-        return false;
-    }
-    captchaInfo.captchaId = jsonObj.value(QStringLiteral("captcha_id")).toString();
-    captchaInfo.captchaImageBase64 = jsonObj.value(QStringLiteral("captcha_image")).toString();
-    captchaInfo.hint = jsonObj.value(QStringLiteral("hint")).toString();
-    captchaInfo.isRequired = true;
-    return true;
-}
 }


@@ -205,7 +172,6 @@ ErrorCode SubscriptionController::extractServerConfigJsonFromResponse(const QByt
        serverProtocolConfig[configKey::specialJunk3] = clientProtocolConfig.value(configKey::specialJunk3);
        serverProtocolConfig[configKey::specialJunk4] = clientProtocolConfig.value(configKey::specialJunk4);
        serverProtocolConfig[configKey::specialJunk5] = clientProtocolConfig.value(configKey::specialJunk5);
-        serverProtocolConfig[configKey::headerProtectionKey] = clientProtocolConfig.value(configKey::headerProtectionKey);

        //

@@ -231,6 +197,9 @@ void SubscriptionController::updateApiConfigInJson(QJsonObject &serverConfigJson
    
    if (serverConfigJson.value(configKey::configVersion).toInt() == serverConfigUtils::ConfigSource::AmneziaGateway) {
        QJsonObject responseObj = QJsonDocument::fromJson(apiResponseBody).object();
+        if (responseObj.contains(apiDefs::key::supportedProtocols)) {
+            apiConfig.insert(apiDefs::key::supportedProtocols, responseObj.value(apiDefs::key::supportedProtocols).toArray());
+        }
        if (responseObj.contains(apiDefs::key::serviceInfo)) {
            apiConfig.insert(apiDefs::key::serviceInfo, responseObj.value(apiDefs::key::serviceInfo).toObject());
        }
@@ -242,13 +211,12 @@ void SubscriptionController::updateApiConfigInJson(QJsonObject &serverConfigJson
 ErrorCode SubscriptionController::executeRequest(const QString &endpoint, const QJsonObject &apiPayload, QByteArray &responseBody, bool isTestPurchase)
 {
    GatewayController gatewayController(m_appSettingsRepository->getGatewayEndpoint(isTestPurchase), m_appSettingsRepository->isDevGatewayEnv(isTestPurchase), apiDefs::requestTimeoutMsecs,
-                                        m_appSettingsRepository->isStrictKillSwitchEnabled(), m_appSettingsRepository);
+                                        m_appSettingsRepository->isStrictKillSwitchEnabled());
    return gatewayController.post(endpoint, apiPayload, responseBody);
 }

 ErrorCode SubscriptionController::importServiceFromGateway(const QString &userCountryCode, const QString &serviceType,
-                                                            const QString &serviceProtocol, const ProtocolData &protocolData,
-                                                            CaptchaInfo &captchaInfo)
+                                                            const QString &serviceProtocol, const ProtocolData &protocolData)
 {
    GatewayRequestData gatewayRequestData { QSysInfo::productType(),
                                            QString(APP_VERSION),
@@ -265,12 +233,6 @@ ErrorCode SubscriptionController::importServiceFromGateway(const QString &userCo

    QByteArray responseBody;
    ErrorCode errorCode = executeRequest(QString("%1v1/config"), apiPayload, responseBody);
-
-    if (errorCode == ErrorCode::ApiCaptchaRequiredError) {
-        fillCaptchaInfoFromResponse(responseBody, captchaInfo);
-        return errorCode;
-    }
-
    if (errorCode != ErrorCode::NoError) {
        return errorCode;
    }
@@ -280,9 +242,9 @@ ErrorCode SubscriptionController::importServiceFromGateway(const QString &userCo
    if (errorCode != ErrorCode::NoError) {
        return errorCode;
    }
-
+    
    updateApiConfigInJson(serverConfigJson, serviceType, serviceProtocol, userCountryCode, responseBody);
-
+    
    if (serverConfigJson.value(configKey::configVersion).toInt() != serverConfigUtils::ConfigSource::AmneziaGateway) {
        return ErrorCode::InternalError;
    }
@@ -433,8 +395,7 @@ ErrorCode SubscriptionController::importServiceFromAppStore(const QString &userC
    return ErrorCode::NoError;
 }

-ErrorCode SubscriptionController::updateServiceFromGateway(const QString &serverId, const QString &newCountryCode, bool isConnectEvent,
-                                                           CaptchaInfo *captchaInfoOut, ProtocolData *usedProtocolDataOut)
+ErrorCode SubscriptionController::updateServiceFromGateway(const QString &serverId, const QString &newCountryCode, bool isConnectEvent)
 {
    auto apiV2 = m_serversRepository->apiV2Config(serverId);
    if (!apiV2.has_value()) {
@@ -442,25 +403,8 @@ ErrorCode SubscriptionController::updateServiceFromGateway(const QString &server
    }
    const bool isTestPurchase = apiV2->apiConfig.isTestPurchase;
    QString serviceProtocol = apiV2->serviceProtocol();
-
-    if (!newCountryCode.isEmpty()) {
-        const auto availableCountries = apiV2->apiConfig.availableCountries;
-        for (const auto &country : availableCountries) {
-            const auto countryObject = country.toObject();
-            if (countryObject.value(apiDefs::key::serverCountryCode).toString() != newCountryCode) {
-                continue;
-            }
-
-            const auto availableProtocols = countryObject.value(apiDefs::key::availableProtocols).toArray();
-            if (!availableProtocols.isEmpty() && !availableProtocols.contains(serviceProtocol)) {
-                serviceProtocol = availableProtocols.first().toString();
-            }
-            break;
-        }
-    }
-
    ProtocolData protocolData = generateProtocolData(serviceProtocol);
-
+    
    QJsonObject authDataJson = apiV2->authData.toJson();
    GatewayRequestData gatewayRequestData { QSysInfo::productType(),
                                            QString(APP_VERSION),
@@ -482,11 +426,6 @@ ErrorCode SubscriptionController::updateServiceFromGateway(const QString &server
    QByteArray responseBody;
    ErrorCode errorCode = executeRequest(QString("%1v1/config"), apiPayload, responseBody, isTestPurchase);
    if (errorCode != ErrorCode::NoError) {
-        if (errorCode == ErrorCode::ApiCaptchaRequiredError && captchaInfoOut) {
-            if (fillCaptchaInfoFromResponse(responseBody, *captchaInfoOut) && usedProtocolDataOut) {
-                *usedProtocolDataOut = protocolData;
-            }
-        }
        if (errorCode == ErrorCode::ApiSubscriptionExpiredError && !apiV2->apiConfig.isInAppPurchase) {
            ApiV2ServerConfig expiredApiV2 = *apiV2;
            expiredApiV2.apiConfig.subscriptionExpiredByServer = true;
@@ -496,43 +435,31 @@ ErrorCode SubscriptionController::updateServiceFromGateway(const QString &server
        return errorCode;
    }

-    return applyUpdatedServiceConfig(serverId, serviceProtocol, protocolData, responseBody);
-}
-
-ErrorCode SubscriptionController::applyUpdatedServiceConfig(const QString &serverId, const QString &serviceProtocol,
-                                                           const ProtocolData &protocolData, const QByteArray &responseBody)
-{
-    auto apiV2 = m_serversRepository->apiV2Config(serverId);
-    if (!apiV2.has_value()) {
-        return ErrorCode::InternalError;
-    }
-
    QJsonObject serverConfigJson;
-    ErrorCode errorCode = extractServerConfigJsonFromResponse(responseBody, serviceProtocol, protocolData, serverConfigJson);
+    errorCode = extractServerConfigJsonFromResponse(responseBody, serviceProtocol, protocolData, serverConfigJson);
    if (errorCode != ErrorCode::NoError) {
        return errorCode;
    }
-
+    
    updateApiConfigInJson(serverConfigJson, apiV2->apiConfig.serviceType, serviceProtocol, apiV2->apiConfig.userCountryCode, responseBody);
-
+    
    if (serverConfigJson.value(configKey::configVersion).toInt() != serverConfigUtils::ConfigSource::AmneziaGateway) {
        return ErrorCode::InternalError;
    }

    ApiV2ServerConfig newApiV2Config = ApiV2ServerConfig::fromJson(serverConfigJson);
    ApiV2ServerConfig* newApiV2 = &newApiV2Config;
-
+    
    newApiV2->apiConfig.vpnKey = apiV2->apiConfig.vpnKey;
    newApiV2->apiConfig.isTestPurchase = apiV2->apiConfig.isTestPurchase;
    newApiV2->apiConfig.isInAppPurchase = apiV2->apiConfig.isInAppPurchase;
    newApiV2->apiConfig.subscriptionExpiredByServer = false;
-
+    
    newApiV2->authData = apiV2->authData;
    newApiV2->crc = apiV2->crc;
-
+    
    if (apiV2->nameOverriddenByUser) {
        newApiV2->name = apiV2->name;
-        newApiV2->displayName = apiV2->displayName;
        newApiV2->nameOverriddenByUser = true;
    }

@@ -541,59 +468,6 @@ ErrorCode SubscriptionController::applyUpdatedServiceConfig(const QString &serve
    return ErrorCode::NoError;
 }

-ErrorCode SubscriptionController::resolveUpdateServiceCaptcha(const QString &serverId, const QString &newCountryCode,
-                                                              bool isConnectEvent, const ProtocolData &protocolData,
-                                                              const QString &captchaId, const QString &captchaSolution,
-                                                              CaptchaInfo *retryCaptchaOut)
-{
-    auto apiV2 = m_serversRepository->apiV2Config(serverId);
-    if (!apiV2.has_value()) {
-        return ErrorCode::InternalError;
-    }
-    const bool isTestPurchase = apiV2->apiConfig.isTestPurchase;
-    QString serviceProtocol = apiV2->serviceProtocol();
-
-    QJsonObject authDataJson = apiV2->authData.toJson();
-    GatewayRequestData gatewayRequestData { QSysInfo::productType(),
-                                            QString(APP_VERSION),
-                                            m_appSettingsRepository->getAppLanguage().name().split("_").first(),
-                                            m_appSettingsRepository->getInstallationUuid(true),
-                                            apiV2->apiConfig.userCountryCode,
-                                            newCountryCode,
-                                            apiV2->serviceType(),
-                                            serviceProtocol,
-                                            authDataJson };
-
-    QJsonObject apiPayload = gatewayRequestData.toJsonObject();
-    appendProtocolDataToApiPayload(serviceProtocol, protocolData, apiPayload);
-
-    if (isConnectEvent) {
-        apiPayload[apiDefs::key::isConnectEvent] = true;
-    }
-
-    apiPayload["captcha_id"] = captchaId;
-    apiPayload["captcha_solution"] = normalizeCaptchaSolution(captchaSolution);
-
-    QByteArray responseBody;
-    ErrorCode errorCode = executeRequest(QString("%1v1/config"), apiPayload, responseBody, isTestPurchase);
-    if (errorCode != ErrorCode::NoError) {
-        if (retryCaptchaOut
-            && (errorCode == ErrorCode::ApiCaptchaInvalidError || errorCode == ErrorCode::ApiCaptchaRefreshError
-                || errorCode == ErrorCode::ApiCaptchaRequiredError)) {
-            fillCaptchaInfoFromResponse(responseBody, *retryCaptchaOut);
-        }
-        if (errorCode == ErrorCode::ApiSubscriptionExpiredError && !apiV2->apiConfig.isInAppPurchase) {
-            ApiV2ServerConfig expiredApiV2 = *apiV2;
-            expiredApiV2.apiConfig.subscriptionExpiredByServer = true;
-            m_serversRepository->editServer(serverId, expiredApiV2.toJson(),
-                                           serverConfigUtils::configTypeFromJson(expiredApiV2.toJson()));
-        }
-        return errorCode;
-    }
-
-    return applyUpdatedServiceConfig(serverId, serviceProtocol, protocolData, responseBody);
-}
-
 ErrorCode SubscriptionController::deactivateDevice(const QString &serverId)
 {
    auto apiV2 = m_serversRepository->apiV2Config(serverId);
@@ -758,20 +632,19 @@ ErrorCode SubscriptionController::prepareVpnKeyExport(const QString &serverId, Q
    return ErrorCode::NoError;
 }

-ErrorCode SubscriptionController::validateAndUpdateConfig(const QString &serverId, bool hasInstalledContainers,
-                                                         CaptchaInfo *captchaInfoOut, ProtocolData *usedProtocolDataOut)
+ErrorCode SubscriptionController::validateAndUpdateConfig(const QString &serverId, bool hasInstalledContainers)
 {
    if (!m_serversRepository->apiV2Config(serverId).has_value()) {
        return ErrorCode::NoError;
    }

    if (!hasInstalledContainers) {
-        return updateServiceFromGateway(serverId, "", true, captchaInfoOut, usedProtocolDataOut);
+        return updateServiceFromGateway(serverId, "", true);
    }

    if (isApiKeyExpired(serverId)) {
        qDebug() << "attempt to update api config by expires_at event";
-        return updateServiceFromGateway(serverId, "", true, captchaInfoOut, usedProtocolDataOut);
+        return updateServiceFromGateway(serverId, "", true);
    }

    return ErrorCode::NoError;
@@ -863,36 +736,6 @@ bool SubscriptionController::isVlessProtocol(const QString &serverId) const
    return apiV2.has_value() && apiV2->serviceProtocol() == "vless";
 }

-QString SubscriptionController::currentProtocol(const QString &serverId) const
-{
-    auto apiV2 = m_serversRepository->apiV2Config(serverId);
-    return apiV2.has_value() ? apiV2->serviceProtocol() : QString();
-}
-
-QStringList SubscriptionController::availableProtocols(const QString &serverId) const
-{
-    auto apiV2 = m_serversRepository->apiV2Config(serverId);
-    if (!apiV2.has_value()) {
-        return {};
-    }
-
-    const auto currentCountryCode = apiV2->apiConfig.serverCountryCode;
-    const auto availableCountries = apiV2->apiConfig.availableCountries;
-
-    QStringList protocols;
-    for (const auto &country : availableCountries) {
-        const auto countryObject = country.toObject();
-        if (countryObject.value(apiDefs::key::serverCountryCode).toString() != currentCountryCode) {
-            continue;
-        }
-        for (const auto &protocol : countryObject.value(apiDefs::key::availableProtocols).toArray()) {
-            protocols.push_back(protocol.toString());
-        }
-        break;
-    }
-    return protocols;
-}
-
 ErrorCode SubscriptionController::processAppStorePurchase(const QString &userCountryCode, const QString &serviceType,
                                                          const QString &serviceProtocol, const QString &productId,
                                                          int *duplicateServerIndex)
@@ -1090,8 +933,7 @@ QFuture<QPair<ErrorCode, QString>> SubscriptionController::getRenewalLink(const
    auto gatewayController = QSharedPointer<GatewayController>::create(m_appSettingsRepository->getGatewayEndpoint(isTestPurchase),
                                                                       m_appSettingsRepository->isDevGatewayEnv(isTestPurchase),
                                                                       apiDefs::requestTimeoutMsecs,
-                                                                       m_appSettingsRepository->isStrictKillSwitchEnabled(),
-                                                                       m_appSettingsRepository);
+                                                                       m_appSettingsRepository->isStrictKillSwitchEnabled());
    auto postFuture = gatewayController->postAsync(QString("%1v1/renewal_link"), apiPayload);
    auto *watcher = new QFutureWatcher<QPair<ErrorCode, QByteArray>>();
    QObject::connect(watcher, &QFutureWatcher<QPair<ErrorCode, QByteArray>>::finished,
@@ -1113,55 +955,3 @@ QFuture<QPair<ErrorCode, QString>> SubscriptionController::getRenewalLink(const
    return promise->future();
 }

-ErrorCode SubscriptionController::resolveImportServiceCaptcha(const QString &userCountryCode,
-                                                              const QString &serviceType,
-                                                              const QString &serviceProtocol,
-                                                              const ProtocolData &protocolData,
-                                                              const QString &captchaId,
-                                                              const QString &captchaSolution,
-                                                              CaptchaInfo *retryCaptchaOut)
-{
-    GatewayRequestData gatewayRequestData{QSysInfo::productType(),
-                                          QString(APP_VERSION),
-                                          m_appSettingsRepository->getAppLanguage().name().split("_").first(),
-                                          m_appSettingsRepository->getInstallationUuid(true),
-                                          userCountryCode,
-                                          "",
-                                          serviceType,
-                                          serviceProtocol,
-                                          QJsonObject()};
-
-    QJsonObject apiPayload = gatewayRequestData.toJsonObject();
-    appendProtocolDataToApiPayload(serviceProtocol, protocolData, apiPayload);
-
-    apiPayload["captcha_id"] = captchaId;
-    apiPayload["captcha_solution"] = normalizeCaptchaSolution(captchaSolution);
-
-    QByteArray responseBody;
-    ErrorCode errorCode = executeRequest(QString("%1v1/config"), apiPayload, responseBody);
-    if (errorCode != ErrorCode::NoError) {
-        if (retryCaptchaOut
-            && (errorCode == ErrorCode::ApiCaptchaInvalidError || errorCode == ErrorCode::ApiCaptchaRefreshError
-                || errorCode == ErrorCode::ApiCaptchaRequiredError)) {
-            fillCaptchaInfoFromResponse(responseBody, *retryCaptchaOut);
-        }
-        return errorCode;
-    }
-
-    QJsonObject serverConfigJson;
-    errorCode = extractServerConfigJsonFromResponse(responseBody, serviceProtocol, protocolData, serverConfigJson);
-    if (errorCode != ErrorCode::NoError) {
-        return errorCode;
-    }
-
-    updateApiConfigInJson(serverConfigJson, serviceType, serviceProtocol, userCountryCode, responseBody);
-
-    if (serverConfigJson.value(configKey::configVersion).toInt() != serverConfigUtils::ConfigSource::AmneziaGateway) {
-        return ErrorCode::InternalError;
-    }
-
-    ApiV2ServerConfig apiV2ServerConfig = ApiV2ServerConfig::fromJson(serverConfigJson);
-    m_serversRepository->addServer(QString(), apiV2ServerConfig.toJson(),
-                                   serverConfigUtils::configTypeFromJson(apiV2ServerConfig.toJson()));
-    return ErrorCode::NoError;
-}
--- a/client/core/controllers/api/subscriptionController.h
+++ b/client/core/controllers/api/subscriptionController.h
@@ -42,13 +42,6 @@ public:
        QJsonObject toJsonObject() const;
    };

-    struct CaptchaInfo {
-        QString captchaId;
-        QString captchaImageBase64;
-        QString hint;
-        bool isRequired = false;
-    };
-
    explicit SubscriptionController(SecureServersRepository* serversRepository,
                                     SecureAppSettingsRepository* appSettingsRepository);

@@ -56,8 +49,7 @@ public:
    void appendProtocolDataToApiPayload(const QString &protocol, const ProtocolData &protocolData, QJsonObject &apiPayload);

    ErrorCode importServiceFromGateway(const QString &userCountryCode, const QString &serviceType,
-                                      const QString &serviceProtocol, const ProtocolData &protocolData,
-                                      CaptchaInfo &captchaInfo);
+                                      const QString &serviceProtocol, const ProtocolData &protocolData);
    ErrorCode importTrialFromGateway(const QString &userCountryCode, const QString &serviceType,
                                     const QString &serviceProtocol, const QString &email);

@@ -66,12 +58,7 @@ public:
                                        const QString &transactionId, bool isTestPurchase,
                                        int *duplicateServerIndex = nullptr);

-    ErrorCode updateServiceFromGateway(const QString &serverId, const QString &newCountryCode, bool isConnectEvent,
-                                       CaptchaInfo *captchaInfoOut = nullptr, ProtocolData *usedProtocolDataOut = nullptr);
-
-    ErrorCode resolveUpdateServiceCaptcha(const QString &serverId, const QString &newCountryCode, bool isConnectEvent,
-                                          const ProtocolData &protocolData, const QString &captchaId,
-                                          const QString &captchaSolution, CaptchaInfo *retryCaptchaOut = nullptr);
+    ErrorCode updateServiceFromGateway(const QString &serverId, const QString &newCountryCode, bool isConnectEvent);

    ErrorCode deactivateDevice(const QString &serverId);

@@ -83,8 +70,7 @@ public:

    ErrorCode prepareVpnKeyExport(const QString &serverId, QString &vpnKey);

-    ErrorCode validateAndUpdateConfig(const QString &serverId, bool hasInstalledContainers,
-                                      CaptchaInfo *captchaInfoOut = nullptr, ProtocolData *usedProtocolDataOut = nullptr);
+    ErrorCode validateAndUpdateConfig(const QString &serverId, bool hasInstalledContainers);

    void removeApiConfig(const QString &serverId);

@@ -92,8 +78,6 @@ public:

    void setCurrentProtocol(const QString &serverId, const QString &protocolName);
    bool isVlessProtocol(const QString &serverId) const;
-    QString currentProtocol(const QString &serverId) const;
-    QStringList availableProtocols(const QString &serverId) const;

    ErrorCode getAccountInfo(const QString &serverId, QJsonObject &accountInfo);
    QFuture<QPair<ErrorCode, QString>> getRenewalLink(const QString &serverId);
@@ -114,19 +98,12 @@ public:
    AppStoreRestoreResult processAppStoreRestore(const QString &userCountryCode, const QString &serviceType,
                                                  const QString &serviceProtocol);

-    ErrorCode resolveImportServiceCaptcha(const QString &userCountryCode, const QString &serviceType,
-                                          const QString &serviceProtocol, const ProtocolData &protocolData,
-                                          const QString &captchaId, const QString &captchaSolution,
-                                          CaptchaInfo *retryCaptchaOut = nullptr);
-
 private:
    ErrorCode executeRequest(const QString &endpoint, const QJsonObject &apiPayload, QByteArray &responseBody, bool isTestPurchase = false);
    bool isApiKeyExpired(const QString &serverId) const;
    
-    ErrorCode extractServerConfigJsonFromResponse(const QByteArray &apiResponseBody, const QString &protocol,
+    ErrorCode extractServerConfigJsonFromResponse(const QByteArray &apiResponseBody, const QString &protocol, 
                                                   const ProtocolData &protocolData, QJsonObject &serverConfigJson);
-    ErrorCode applyUpdatedServiceConfig(const QString &serverId, const QString &serviceProtocol,
-                                        const ProtocolData &protocolData, const QByteArray &responseBody);
    void updateApiConfigInJson(QJsonObject &serverConfigJson, const QString &serviceType, 
                                const QString &serviceProtocol, const QString &userCountryCode,
                                const QByteArray &apiResponseBody);
--- a/client/core/controllers/connectionController.cpp
+++ b/client/core/controllers/connectionController.cpp
@@ -6,8 +6,9 @@
 #include "core/utils/protocolEnum.h"
 #include "core/protocols/protocolUtils.h"
 #include "core/utils/constants/configKeys.h"
-#include "core/utils/payloadSender.h"
+#include "core/utils/constants/protocolConstants.h"
 #include "core/utils/utilities.h"
+#include "core/utils/networkUtilities.h"
 #include "core/utils/serverConfigUtils.h"
 #include "version.h"
 #include "core/utils/containerEnum.h"
@@ -31,6 +32,7 @@ ConnectionController::ConnectionController(SecureServersRepository* serversRepos
    connect(m_vpnConnection, &VpnConnection::connectionStateChanged, this, &ConnectionController::connectionStateChanged);
    connect(this, &ConnectionController::openConnectionRequested, m_vpnConnection, &VpnConnection::connectToVpn, Qt::QueuedConnection);
    connect(this, &ConnectionController::closeConnectionRequested, m_vpnConnection, &VpnConnection::disconnectFromVpn, Qt::QueuedConnection);
+    connect(this, &ConnectionController::setConnectionStateRequested, m_vpnConnection, &VpnConnection::setConnectionState, Qt::QueuedConnection);
    connect(this, &ConnectionController::killSwitchModeChangedRequested, m_vpnConnection, &VpnConnection::onKillSwitchModeChanged, Qt::QueuedConnection);
 #ifdef Q_OS_ANDROID
    connect(this, &ConnectionController::restoreConnectionRequested, m_vpnConnection, &VpnConnection::restoreConnection, Qt::QueuedConnection);
@@ -44,99 +46,19 @@ bool ConnectionController::isConnected() const

 void ConnectionController::setConnectionState(Vpn::ConnectionState state)
 {
-    emit connectionStateChanged(state);
-}
-
-ErrorCode ConnectionController::defaultContainerForServer(const QString &serverId, DockerContainer &container) const
-{
-    const auto kind = m_serversRepository->serverKind(serverId);
-    switch (kind) {
-    case serverConfigUtils::ConfigType::SelfHostedAdmin: {
-        const auto cfg = m_serversRepository->selfHostedAdminConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        return ErrorCode::NoError;
+    if (m_vpnConnection) {
+        emit setConnectionStateRequested(state);
    }
-    case serverConfigUtils::ConfigType::SelfHostedUser: {
-        const auto cfg = m_serversRepository->selfHostedUserConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        return ErrorCode::NoError;
-    }
-    case serverConfigUtils::ConfigType::Native: {
-        const auto cfg = m_serversRepository->nativeConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        return ErrorCode::NoError;
-    }
-    case serverConfigUtils::ConfigType::AmneziaPremiumV2:
-    case serverConfigUtils::ConfigType::AmneziaFreeV3:
-    case serverConfigUtils::ConfigType::ExternalPremium: {
-        const auto cfg = m_serversRepository->apiV2Config(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        return ErrorCode::NoError;
-    }
-    case serverConfigUtils::ConfigType::AmneziaPremiumV1:
-    case serverConfigUtils::ConfigType::AmneziaFreeV2:
-        return ErrorCode::LegacyApiV1NotSupportedError;
-    case serverConfigUtils::ConfigType::Invalid:
-    default:
-        return ErrorCode::InternalError;
-    }
-}
-
-ErrorCode ConnectionController::isConnectionSupported(const QString &serverId) const
-{
-    if (serverId.isEmpty()) {
-        return ErrorCode::InternalError;
-    }
-
-    if (!isServiceReady()) {
-        return ErrorCode::AmneziaServiceNotRunning;
-    }
-
-    const serverConfigUtils::ConfigType kind = m_serversRepository->serverKind(serverId);
-    if (serverConfigUtils::isLegacyApiSubscription(kind)) {
-        return ErrorCode::LegacyApiV1NotSupportedError;
-    }
-
-    DockerContainer container = DockerContainer::None;
-    const ErrorCode errorCode = defaultContainerForServer(serverId, container);
-    if (errorCode != ErrorCode::NoError) {
-        return errorCode;
-    }
-
-    if (container == DockerContainer::None) {
-        if (serverConfigUtils::isApiV2Subscription(kind)) {
-            return ErrorCode::NoError;
-        }
-        return ErrorCode::NoInstalledContainersError;
-    }
-
-    if (ContainerUtils::isUnsupportedContainer(container)) {
-        return ErrorCode::LegacyContainerNotSupportedError;
-    }
-
-    if (!isContainerSupported(container)) {
-        return ErrorCode::NotSupportedOnThisPlatform;
-    }
-
-    return ErrorCode::NoError;
 }

 ErrorCode ConnectionController::prepareConnection(const QString &serverId,
                                                 QJsonObject& vpnConfiguration,
                                                 DockerContainer& container)
 {
+    if (!isServiceReady()) {
+        return ErrorCode::AmneziaServiceNotRunning;
+    }
+
    ContainerConfig containerConfigModel;
    QPair<QString, QString> dns;
    QString hostName;
@@ -145,15 +67,13 @@ ErrorCode ConnectionController::prepareConnection(const QString &serverId,
    bool isApiConfig = false;

    const auto kind = m_serversRepository->serverKind(serverId);
-    const QString primaryDns = m_appSettingsRepository->primaryDns();
-    const QString secondaryDns = m_appSettingsRepository->secondaryDns();
    switch (kind) {
    case serverConfigUtils::ConfigType::SelfHostedAdmin: {
        const auto cfg = m_serversRepository->selfHostedAdminConfig(serverId);
        if (!cfg.has_value()) return ErrorCode::InternalError;
        container = cfg->defaultContainer;
        containerConfigModel = cfg->containerConfig(container);
-        dns = cfg->getDnsPair(m_appSettingsRepository->useAmneziaDns(), primaryDns, secondaryDns);
+        dns = { cfg->dns1, cfg->dns2 };
        hostName = cfg->hostName;
        description = cfg->description;
        break;
@@ -163,7 +83,7 @@ ErrorCode ConnectionController::prepareConnection(const QString &serverId,
        if (!cfg.has_value()) return ErrorCode::InternalError;
        container = cfg->defaultContainer;
        containerConfigModel = cfg->containerConfig(container);
-        dns = cfg->getDnsPair(primaryDns, secondaryDns);
+        dns = { cfg->dns1, cfg->dns2 };
        hostName = cfg->hostName;
        description = cfg->description;
        break;
@@ -173,7 +93,7 @@ ErrorCode ConnectionController::prepareConnection(const QString &serverId,
        if (!cfg.has_value()) return ErrorCode::InternalError;
        container = cfg->defaultContainer;
        containerConfigModel = cfg->containerConfig(container);
-        dns = cfg->getDnsPair(primaryDns, secondaryDns);
+        dns = { cfg->dns1, cfg->dns2 };
        hostName = cfg->hostName;
        description = cfg->description;
        break;
@@ -185,7 +105,7 @@ ErrorCode ConnectionController::prepareConnection(const QString &serverId,
        if (!cfg.has_value()) return ErrorCode::InternalError;
        container = cfg->defaultContainer;
        containerConfigModel = cfg->containerConfig(container);
-        dns = cfg->getDnsPair(primaryDns, secondaryDns);
+        dns = { cfg->dns1, cfg->dns2 };
        hostName = cfg->hostName;
        description = cfg->description;
        configVersion = serverConfigUtils::ConfigSource::AmneziaGateway;
@@ -200,6 +120,20 @@ ErrorCode ConnectionController::prepareConnection(const QString &serverId,
        return ErrorCode::InternalError;
    }

+    if (!isContainerSupported(container)) {
+        return ErrorCode::NotSupportedOnThisPlatform;
+    }
+    if (dns.first.isEmpty() || !NetworkUtilities::checkIPv4Format(dns.first)) {
+        if (m_appSettingsRepository->useAmneziaDns()) {
+            dns.first = protocols::dns::amneziaDnsIp;
+        } else {
+            dns.first = m_appSettingsRepository->primaryDns();
+        }
+    }
+    if (dns.second.isEmpty() || !NetworkUtilities::checkIPv4Format(dns.second)) {
+        dns.second = m_appSettingsRepository->secondaryDns();
+    }
+
    vpnConfiguration = createConnectionConfiguration(dns, isApiConfig, hostName, description, configVersion,
                                                     containerConfigModel, container);

@@ -216,11 +150,6 @@ ErrorCode ConnectionController::openConnection(const QString &serverId)
        return errorCode;
    }

-    const auto apiV2 = m_serversRepository->apiV2Config(serverId);
-    if (apiV2.has_value() && !apiV2->sendPayload.isEmpty()) {
-        PayloadSender::sendAll(apiV2->sendPayload);
-    }
-
    emit openConnectionRequested(serverId, container, vpnConfiguration);
    return ErrorCode::NoError;
 }
--- a/client/core/controllers/connectionController.h
+++ b/client/core/controllers/connectionController.h
@@ -34,8 +34,6 @@ public:
                               QJsonObject& vpnConfiguration,
                               DockerContainer& container);

-    ErrorCode isConnectionSupported(const QString &serverId) const;
-
    ErrorCode openConnection(const QString &serverId);

    void closeConnection();
@@ -67,6 +65,7 @@ signals:
    void connectionStateChanged(Vpn::ConnectionState state);
    void openConnectionRequested(const QString &serverId, DockerContainer container, const QJsonObject &vpnConfiguration);
    void closeConnectionRequested();
+    void setConnectionStateRequested(Vpn::ConnectionState state);
    void killSwitchModeChangedRequested(bool enabled);

 #ifdef Q_OS_ANDROID
@@ -74,8 +73,6 @@ signals:
 #endif

 private:
-    ErrorCode defaultContainerForServer(const QString &serverId, DockerContainer &container) const;
-
    SecureServersRepository* m_serversRepository;
    SecureAppSettingsRepository* m_appSettingsRepository;
    VpnConnection* m_vpnConnection;
--- a/client/core/controllers/coreController.cpp
+++ b/client/core/controllers/coreController.cpp
@@ -22,8 +22,7 @@
 #endif

 CoreController::CoreController(const QSharedPointer<VpnConnection> &vpnConnection, SecureQSettings* settings,
-                               QQmlApplicationEngine *engine, QObject *parent,
-                               bool skipPlatformControllerInit)
+                               QQmlApplicationEngine *engine, QObject *parent)
    : QObject(parent), m_vpnConnection(vpnConnection), m_settings(settings), m_engine(engine)
 {
    initRepositories();
@@ -32,10 +31,8 @@ CoreController::CoreController(const QSharedPointer<VpnConnection> &vpnConnectio
    initControllers();
    initSignalHandlers();

-    if (!skipPlatformControllerInit) {
-        initAndroidController();
-        initAppleController();
-    }
+    initAndroidController();
+    initAppleController();
    initLogging();

    m_translator = new QTranslator(this);
@@ -89,9 +86,6 @@ void CoreController::initModels()
    m_xrayConfigModel = new XrayConfigModel(this);
    setQmlContextProperty("XrayConfigModel", m_xrayConfigModel);

-    m_xrayConfigSnapshotsModel = new XrayConfigSnapshotsModel(m_appSettingsRepository, m_xrayConfigModel, this);
-    setQmlContextProperty("XrayConfigSnapshotsModel", m_xrayConfigSnapshotsModel);
-
    m_torConfigModel = new TorConfigModel(this);
    setQmlContextProperty("TorConfigModel", m_torConfigModel);

@@ -106,12 +100,6 @@ void CoreController::initModels()
    m_socks5ConfigModel = new Socks5ProxyConfigModel(this);
    setQmlContextProperty("Socks5ProxyConfigModel", m_socks5ConfigModel);

-    m_mtProxyConfigModel = new MtProxyConfigModel(this);
-    setQmlContextProperty("MtProxyConfigModel", m_mtProxyConfigModel);
-
-    m_telemtConfigModel = new TelemtConfigModel(this);
-    setQmlContextProperty("TelemtConfigModel", m_telemtConfigModel);
-
    m_clientManagementModel = new ClientManagementModel(this);
    setQmlContextProperty("ClientManagementModel", m_clientManagementModel);

@@ -181,8 +169,7 @@ void CoreController::initControllers()
 #ifdef Q_OS_WINDOWS
                                                     m_ikev2ConfigModel,
 #endif
-                                                     m_sftpConfigModel, m_socks5ConfigModel, m_mtProxyConfigModel, m_telemtConfigModel,
-                                                     m_connectionController, this);
+                                                     m_sftpConfigModel, m_socks5ConfigModel, this);
    setQmlContextProperty("InstallController", m_installUiController);

    m_importController = new ImportUiController(m_importCoreController, this);
@@ -194,7 +181,7 @@ void CoreController::initControllers()
    m_languageUiController = new LanguageUiController(m_settingsController, m_languageModel, this);
    setQmlContextProperty("LanguageUiController", m_languageUiController);

-    m_settingsUiController = new SettingsUiController(m_settingsController, m_serversController, this);
+    m_settingsUiController = new SettingsUiController(m_settingsController, m_serversController, m_languageUiController, this);
    setQmlContextProperty("SettingsController", m_settingsUiController);

    m_pageController = new PageController(m_serversController, m_settingsController, this);
@@ -215,17 +202,12 @@ void CoreController::initControllers()
    m_systemController = new SystemController(this);
    setQmlContextProperty("SystemController", m_systemController);

-    m_networkReachabilityController = new NetworkReachabilityController(this);
-    setQmlContextProperty("NetworkReachabilityController", m_networkReachabilityController);
-    setQmlContextProperty("NetworkReachability", m_networkReachabilityController);
-
    m_servicesCatalogUiController = new ServicesCatalogUiController(m_servicesCatalogController, m_apiServicesModel, this);
    setQmlContextProperty("ServicesCatalogUiController", m_servicesCatalogUiController);

    m_subscriptionUiController = new SubscriptionUiController(m_serversController, m_apiServicesModel, m_servicesCatalogController, m_subscriptionController,
                                                              m_apiSubscriptionPlansModel, m_apiBenefitsModel, m_apiAccountInfoModel,
-                                                              m_apiCountryModel, m_apiDevicesModel, m_settingsController,
-                                                              m_connectionController, this);
+                                                              m_apiCountryModel, m_apiDevicesModel, m_settingsController, this);
    setQmlContextProperty("SubscriptionUiController", m_subscriptionUiController);

    m_apiNewsUiController = new ApiNewsUiController(m_newsModel, m_newsController, this);
@@ -285,10 +267,6 @@ void CoreController::initSignalHandlers()
    if (m_serversUiController->hasServersFromGatewayApi()) {
        m_apiNewsUiController->fetchNews(false);
    }
-
-    #if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
-        m_updateController->checkForUpdates();
-    #endif    
 }

 void CoreController::updateTranslator(const QLocale &locale)
@@ -351,6 +329,9 @@ void CoreController::openConnectionByIndex(int serverIndex)
    if (serverId.isEmpty()) {
        return;
    }
+    if (m_serversModel) {
+        m_serversModel->setProcessedServerIndex(serverIndex);
+    }
    if (m_serversController) {
        m_serversController->setDefaultServer(serverId);
    }
--- a/client/core/controllers/coreController.h
+++ b/client/core/controllers/coreController.h
@@ -28,7 +28,6 @@
 #include "ui/controllers/languageUiController.h"
 #include "ui/controllers/updateUiController.h"
 #include "ui/controllers/api/servicesCatalogUiController.h"
-#include "ui/controllers/networkReachabilityController.h"

 #include "core/controllers/serversController.h"
 #include "core/controllers/selfhosted/usersController.h"
@@ -65,15 +64,11 @@
 #include "ui/models/protocols/openvpnConfigModel.h"
 #include "ui/models/protocols/wireguardConfigModel.h"
 #include "ui/models/protocols/xrayConfigModel.h"
-#include "ui/models/protocols/xrayConfigSnapshotsModel.h"
 #include "ui/models/protocolsModel.h"
 #include "ui/models/services/torConfigModel.h"
 #include "ui/models/serversModel.h"
 #include "ui/models/services/sftpConfigModel.h"
 #include "ui/models/services/socks5ProxyConfigModel.h"
-#include "ui/models/services/mtProxyConfigModel.h"
-#include "ui/models/services/telemtConfigModel.h"
-
 #include "ui/models/ipSplitTunnelingModel.h"
 #include "ui/models/newsModel.h"

@@ -82,16 +77,37 @@
 #endif

 class CoreSignalHandlers;
+class TestMultipleImports;
+class TestAdminSelfHostedExport;
+class TestServerEdit;
+class TestDefaultServerChange;
+class TestServerEdgeCases;
+class TestSignalOrder;
+class TestServersModelSync;
+class TestComplexOperations;
+class TestSettingsSignals;
+class TestUiServersModelAndController;
+class TestSelfHostedServerSetup;

 class CoreController : public QObject
 {
    Q_OBJECT
    friend class CoreSignalHandlers;
+    friend class TestMultipleImports;
+    friend class TestAdminSelfHostedExport;
+    friend class TestServerEdit;
+    friend class TestDefaultServerChange;
+    friend class TestServerEdgeCases;
+    friend class TestSignalOrder;
+    friend class TestServersModelSync;
+    friend class TestComplexOperations;
+    friend class TestSettingsSignals;
+    friend class TestUiServersModelAndController;
+    friend class TestSelfHostedServerSetup;

 public:
    explicit CoreController(const QSharedPointer<VpnConnection> &vpnConnection, SecureQSettings* settings,
-                            QQmlApplicationEngine *engine, QObject *parent = nullptr,
-                            bool skipPlatformControllerInit = false);
+                            QQmlApplicationEngine *engine, QObject *parent = nullptr);

    PageController* pageController() const;
    void setQmlRoot();
@@ -104,36 +120,6 @@ signals:
    void translationsUpdated();
    void websiteUrlChanged(const QString &newUrl);

-protected:
-    SecureServersRepository* serversRepositoryProtected() const { return m_serversRepository; }
-    SecureAppSettingsRepository* appSettingsRepositoryProtected() const { return m_appSettingsRepository; }
-    ServersModel* serversModelProtected() const { return m_serversModel; }
-    ContainersModel* containersModelProtected() const { return m_containersModel; }
-    ApiServicesModel* apiServicesModelProtected() const { return m_apiServicesModel; }
-    NewsModel* newsModelProtected() const { return m_newsModel; }
-    AllowedDnsModel* allowedDnsModelProtected() const { return m_allowedDnsModel; }
-    AppSplitTunnelingModel* appSplitTunnelingModelProtected() const { return m_appSplitTunnelingModel; }
-    IpSplitTunnelingModel* ipSplitTunnelingModelProtected() const { return m_ipSplitTunnelingModel; }
-    LanguageModel* languageModelProtected() const { return m_languageModel; }
-    ConnectionUiController* connectionUiControllerProtected() const { return m_connectionUiController; }
-    InstallUiController* installUiControllerProtected() const { return m_installUiController; }
-    ImportController* importCoreControllerProtected() const { return m_importCoreController; }
-    ExportController* exportControllerProtected() const { return m_exportController; }
-    InstallController* installControllerProtected() const { return m_installController; }
-    ServersController* serversControllerProtected() const { return m_serversController; }
-    SettingsUiController* settingsUiControllerProtected() const { return m_settingsUiController; }
-    SettingsController* settingsControllerProtected() const { return m_settingsController; }
-    AllowedDnsUiController* allowedDnsUiControllerProtected() const { return m_allowedDnsUiController; }
-    AllowedDnsController* allowedDnsControllerProtected() const { return m_allowedDnsController; }
-    LanguageUiController* languageUiControllerProtected() const { return m_languageUiController; }
-    IpSplitTunnelingController* ipSplitTunnelingControllerProtected() const { return m_ipSplitTunnelingController; }
-    IpSplitTunnelingUiController* ipSplitTunnelingUiControllerProtected() const { return m_ipSplitTunnelingUiController; }
-    AppSplitTunnelingController* appSplitTunnelingControllerProtected() const { return m_appSplitTunnelingController; }
-    AppSplitTunnelingUiController* appSplitTunnelingUiControllerProtected() const { return m_appSplitTunnelingUiController; }
-    ServersUiController* serversUiControllerProtected() const { return m_serversUiController; }
-    ServicesCatalogUiController* servicesCatalogUiControllerProtected() const { return m_servicesCatalogUiController; }
-    ApiNewsUiController* apiNewsUiControllerProtected() const { return m_apiNewsUiController; }
-
 private:
    void initRepositories();
    void initCoreControllers();
@@ -170,7 +156,6 @@ private:
    ServersUiController* m_serversUiController;
    IpSplitTunnelingUiController* m_ipSplitTunnelingUiController;
    SystemController* m_systemController;
-    NetworkReachabilityController* m_networkReachabilityController;
    AppSplitTunnelingUiController* m_appSplitTunnelingUiController;
    AllowedDnsUiController* m_allowedDnsUiController;
    LanguageUiController* m_languageUiController;
@@ -215,7 +200,6 @@ private:

    OpenVpnConfigModel* m_openVpnConfigModel;
    XrayConfigModel* m_xrayConfigModel;
-    XrayConfigSnapshotsModel* m_xrayConfigSnapshotsModel;
    TorConfigModel* m_torConfigModel;
    WireGuardConfigModel* m_wireGuardConfigModel;
    AwgConfigModel* m_awgConfigModel;
@@ -224,8 +208,6 @@ private:
 #endif
    SftpConfigModel* m_sftpConfigModel;
    Socks5ProxyConfigModel* m_socks5ConfigModel;
-    MtProxyConfigModel* m_mtProxyConfigModel;
-    TelemtConfigModel* m_telemtConfigModel;

    CoreSignalHandlers* m_signalHandlers;
 };
--- a/client/core/controllers/coreSignalHandlers.cpp
+++ b/client/core/controllers/coreSignalHandlers.cpp
@@ -1,7 +1,6 @@
 #include "coreSignalHandlers.h"

 #include <QTimer>
-#include <QtConcurrent>

 #include "core/utils/selfhosted/sshSession.h"
 #include "core/utils/errorCodes.h"
@@ -34,6 +33,7 @@
 #include "core/controllers/connectionController.h"
 #include "ui/models/clientManagementModel.h"
 #include "ui/controllers/api/apiNewsUiController.h"
+#include "ui/models/api/apiCountryModel.h"
 #include "ui/models/containersModel.h"
 #include "core/utils/containerEnum.h"

@@ -125,9 +125,9 @@ void CoreSignalHandlers::initInstallControllerHandler()
 {
    connect(m_coreController->m_installController, &InstallController::serverIsBusy, m_coreController->m_installUiController, &InstallUiController::serverIsBusy);
    connect(m_coreController->m_installUiController, &InstallUiController::cancelInstallation, m_coreController->m_installController, &InstallController::cancelInstallation);
-    connect(m_coreController->m_serversUiController, &ServersUiController::processedServerIdChanged,
-        m_coreController->m_installUiController, [this](const QString &serverId) {
-        if (!serverId.isEmpty()) {
+    connect(m_coreController->m_serversUiController, &ServersUiController::processedServerIndexChanged,
+        m_coreController->m_installUiController, [this](int serverIndex) {
+        if (serverIndex >= 0) {
            m_coreController->m_installUiController->clearProcessedServerCredentials();
        }
    });
@@ -145,9 +145,7 @@ void CoreSignalHandlers::initExportControllerHandler()
            });
    connect(m_coreController->m_exportController, &ExportController::revokeClientRequested, this,
            [this](const QString &serverId, int row, DockerContainer container) {
-                QtConcurrent::run([this, serverId, row, container]() {
-                    m_coreController->m_usersController->revokeClient(serverId, row, container);
-                });
+                m_coreController->m_usersController->revokeClient(serverId, row, container);
            });
    connect(m_coreController->m_exportController, &ExportController::renameClientRequested, this,
            [this](const QString &serverId, int row, const QString &clientName, DockerContainer container) {
@@ -158,17 +156,15 @@ void CoreSignalHandlers::initExportControllerHandler()
 void CoreSignalHandlers::initImportControllerHandler()
 {
    connect(m_coreController->m_importCoreController, &ImportController::importFinished, this, [this]() {
-        if (m_coreController->m_connectionUiController->isConnected()) {
-            return;
-        }
-
-        const int newServerIndex = m_coreController->m_serversController->getServersCount() - 1;
-        const QString serverId = m_coreController->m_serversController->getServerId(newServerIndex);
-        if (!serverId.isEmpty()) {
-            m_coreController->m_serversController->setDefaultServer(serverId);
-        }
-        if (m_coreController->m_serversUiController) {
-            m_coreController->m_serversUiController->setProcessedServerId(serverId);
+        if (!m_coreController->m_connectionController->isConnected()) {
+            int newServerIndex = m_coreController->m_serversController->getServersCount() - 1;
+            const QString serverId = m_coreController->m_serversController->getServerId(newServerIndex);
+            if (!serverId.isEmpty()) {
+                m_coreController->m_serversController->setDefaultServer(serverId);
+            }
+            if (m_coreController->m_serversUiController) {
+                m_coreController->m_serversUiController->setProcessedServerId(serverId);
+            }
        }
    });
 }
@@ -180,14 +176,17 @@ void CoreSignalHandlers::initApiCountryModelUpdateHandler()
        if (processedServerId.isEmpty()) {
            return;
        }
+        
+        QJsonArray availableCountries;
+        QString serverCountryCode;

        const auto apiV2 = m_coreController->m_serversRepository->apiV2Config(processedServerId);
-        if (!apiV2.has_value()) {
-            return;
+        if (apiV2.has_value()) {
+            availableCountries = apiV2->apiConfig.availableCountries;
+            serverCountryCode = apiV2->apiConfig.serverCountryCode;
        }
-
-        m_coreController->m_apiCountryModel->updateModel(apiV2->apiConfig.availableCountries,
-                                                           apiV2->apiConfig.serverCountryCode);
+        
+        m_coreController->m_apiCountryModel->updateModel(availableCountries, serverCountryCode);
    });
 }

@@ -206,12 +205,12 @@ void CoreSignalHandlers::initAdminConfigRevokedHandler()
    connect(m_coreController->m_installController, &InstallController::clientRevocationRequested, this,
            [this](const QString &serverId, const ContainerConfig &containerConfig, DockerContainer container) {
                m_coreController->m_usersController->revokeClient(serverId, containerConfig, container);
-            }, Qt::DirectConnection);
+            });

    connect(m_coreController->m_installController, &InstallController::clientAppendRequested, this,
            [this](const QString &serverId, const QString &clientId, const QString &clientName, DockerContainer container) {
                m_coreController->m_usersController->appendClient(serverId, clientId, clientName, container);
-            }, Qt::DirectConnection);
+            });

    connect(m_coreController->m_usersController, &UsersController::adminConfigRevoked, m_coreController->m_installController,
            &InstallController::clearCachedProfile);
@@ -238,16 +237,13 @@ void CoreSignalHandlers::initLanguageHandler()
    connect(m_coreController->m_settingsUiController, &SettingsUiController::resetLanguageToSystem, m_coreController->m_languageUiController, [this]() {
        m_coreController->m_languageUiController->changeLanguage(m_coreController->m_languageUiController->getSystemLanguageEnum());
    });
-    connect(m_coreController->m_settingsUiController, &SettingsUiController::appLanguageChanged, m_coreController->m_languageUiController, [this]() {
-        m_coreController->m_languageUiController->onAppLanguageChanged(m_coreController->m_settingsController->getAppLanguage());
-    });
 }

 void CoreSignalHandlers::initAutoConnectHandler()
 {
    if (m_coreController->m_settingsUiController->isAutoConnectEnabled()
        && !m_coreController->m_serversController->getDefaultServerId().isEmpty()) {
-        QTimer::singleShot(1000, this, [this]() { m_coreController->m_connectionUiController->toggleConnection(); });
+        QTimer::singleShot(1000, this, [this]() { m_coreController->m_connectionUiController->openConnection(); });
    }
 }

@@ -288,8 +284,6 @@ void CoreSignalHandlers::initClientManagementModelUpdateHandler()
            m_coreController->m_clientManagementModel, &ClientManagementModel::updateModel);
    connect(m_coreController->m_usersController, &UsersController::clientRenamed,
            m_coreController->m_clientManagementModel, &ClientManagementModel::updateClientName);
-    connect(m_coreController->m_usersController, &UsersController::revokeFinished,
-            m_coreController->m_exportController, &ExportController::revokeFinished);
 }

 void CoreSignalHandlers::initSitesModelUpdateHandler()
@@ -354,9 +348,6 @@ void CoreSignalHandlers::initUnsupportedConnectDrawerHandler()
 {
    connect(m_coreController->m_subscriptionUiController, &SubscriptionUiController::unsupportedConnectDrawerRequested,
            m_coreController->m_pageController, &PageController::unsupportedConnectDrawerRequested);
-
-    connect(m_coreController->m_connectionUiController, &ConnectionUiController::unsupportedConnectDrawerRequested,
-            m_coreController->m_pageController, &PageController::unsupportedConnectDrawerRequested);
 }

 void CoreSignalHandlers::initStrictKillSwitchHandler()
@@ -440,6 +431,9 @@ void CoreSignalHandlers::initNotificationHandler()
 void CoreSignalHandlers::initUpdateFoundHandler()
 {
 #if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
+    connect(m_coreController->m_apiNewsUiController, &ApiNewsUiController::fetchNewsFinished, m_coreController->m_updateUiController,
+            &UpdateUiController::checkForUpdates);
+
    connect(m_coreController->m_updateUiController, &UpdateUiController::updateFound, this, [this]() {
        const QString version = m_coreController->m_updateUiController->getVersion();
        const QString updateId = version.isEmpty() ? QStringLiteral("update") : QStringLiteral("update-%1").arg(version);
--- a/client/core/controllers/gatewayController.cpp
+++ b/client/core/controllers/gatewayController.cpp
@@ -12,14 +12,14 @@
 #include <QPromise>
 #include <QUrl>

-#include <openssl/rsa.h>
+#include "QBlockCipher.h"
+#include "QRsa.h"

 #include "amneziaApplication.h"
-#include "core/repositories/secureAppSettingsRepository.h"
 #include "core/utils/api/apiUtils.h"
 #include "core/utils/constants/apiKeys.h"
 #include "core/utils/networkUtilities.h"
-#include "cryptoUtils.h"
+#include "core/utils/utilities.h"

 #ifdef AMNEZIA_DESKTOP
    #include "core/utils/ipcClient.h"
@@ -30,8 +30,6 @@ namespace
    constexpr QLatin1String errorResponsePattern1("No active configuration found for");
    constexpr QLatin1String errorResponsePattern2("No non-revoked public key found for");
    constexpr QLatin1String errorResponsePattern3("Account not found.");
-    constexpr QLatin1String errorResponsePatternQrSessionNotFound("QR session not found");
-    constexpr QLatin1String errorResponsePatternSessionNotFound("Session not found");

    constexpr QLatin1String updateRequestResponsePattern("client version update is required");

@@ -39,81 +37,20 @@ namespace
    constexpr int httpStatusCodeConflict = 409;
    constexpr int httpStatusCodeNotImplemented = 501;
    constexpr int httpStatusCodePaymentRequired = 402;
-    constexpr int httpStatusCodeRequestTimeout = 408;
    constexpr int httpStatusCodeUnprocessableEntity = 422;

    constexpr QLatin1String unprocessableSubscriptionMessage("Failed to retrieve subscription information. Is it activated?");

    constexpr int proxyStorageRequestTimeoutMsecs = 3000;
-
-    QStringList shuffledProxyUrls(const QStringList &proxyUrls)
-    {
-        QStringList shuffled = proxyUrls;
-        std::random_device randomDevice;
-        std::mt19937 generator(randomDevice());
-        std::shuffle(shuffled.begin(), shuffled.end(), generator);
-        return shuffled;
-    }
-
-    QString getProxyUrlsCacheKey(const QString &serviceType, const QString &userCountryCode)
-    {
-        return QStringLiteral("service_%1_country_%2").arg(serviceType, userCountryCode);
-    }
-
-    bool decryptProxyUrlsPayload(const QByteArray &encryptedPayload, bool isDevEnvironment, QByteArray &decryptedPayload)
-    {
-        QByteArray key = isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
-        if (!isDevEnvironment) {
-            QCryptographicHash hash(QCryptographicHash::Sha512);
-            hash.addData(key);
-            QByteArray h = hash.result().toHex();
-
-            QByteArray decKey = QByteArray::fromHex(h.left(64));
-            QByteArray iv = QByteArray::fromHex(h.mid(64, 32));
-            QByteArray ba = QByteArray::fromBase64(encryptedPayload);
-
-            decryptedPayload = CryptoUtils::decryptAes256Cbc(ba, decKey, iv);
-            if (decryptedPayload.isEmpty()) {
-                return false;
-            }
-        } else {
-            decryptedPayload = encryptedPayload;
-        }
-        return true;
-    }
-
-    QStringList readCachedProxyUrls(const QByteArray &cachedProxyUrlsEncrypted, bool isDevEnvironment)
-    {
-        if (cachedProxyUrlsEncrypted.isEmpty()) {
-            return {};
-        }
-
-        QByteArray cachedProxyUrlsDecrypted;
-        if (!decryptProxyUrlsPayload(cachedProxyUrlsEncrypted, isDevEnvironment, cachedProxyUrlsDecrypted)) {
-            qCritical() << "error decrypting cached proxy urls payload";
-            return {};
-        }
-
-        QJsonArray endpointsArray = QJsonDocument::fromJson(cachedProxyUrlsDecrypted).array();
-        QStringList endpoints;
-        endpoints.reserve(endpointsArray.size());
-        for (const QJsonValue &endpoint : endpointsArray) {
-            endpoints.push_back(endpoint.toString());
-        }
-
-        return endpoints;
-    }
 }

 GatewayController::GatewayController(const QString &gatewayEndpoint, const bool isDevEnvironment, const int requestTimeoutMsecs,
-                                     const bool isStrictKillSwitchEnabled, SecureAppSettingsRepository *appSettingsRepository,
-                                     QObject *parent)
+                                     const bool isStrictKillSwitchEnabled, QObject *parent)
    : QObject(parent),
      m_gatewayEndpoint(gatewayEndpoint),
      m_isDevEnvironment(isDevEnvironment),
      m_requestTimeoutMsecs(requestTimeoutMsecs),
-      m_isStrictKillSwitchEnabled(isStrictKillSwitchEnabled),
-      m_appSettingsRepository(appSettingsRepository)
+      m_isStrictKillSwitchEnabled(isStrictKillSwitchEnabled)
 {
 }

@@ -147,29 +84,40 @@ GatewayController::EncryptedRequestData GatewayController::prepareRequest(const
    }
 #endif

-    encRequestData.key = CryptoUtils::generateRandomBytes(32);
-    encRequestData.iv = CryptoUtils::generateRandomBytes(32);
-    encRequestData.salt = CryptoUtils::generateRandomBytes(8);
+    QSimpleCrypto::QBlockCipher blockCipher;
+    encRequestData.key = blockCipher.generatePrivateSalt(32);
+    encRequestData.iv = blockCipher.generatePrivateSalt(32);
+    encRequestData.salt = blockCipher.generatePrivateSalt(8);

    QJsonObject keyPayload;
    keyPayload[apiDefs::key::aesKey] = QString(encRequestData.key.toBase64());
    keyPayload[apiDefs::key::aesIv] = QString(encRequestData.iv.toBase64());
    keyPayload[apiDefs::key::aesSalt] = QString(encRequestData.salt.toBase64());

-    QByteArray rsaKey = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
-    EVP_PKEY *publicKey = CryptoUtils::loadPublicKeyFromPem(rsaKey);
-    if (publicKey == nullptr) {
-        qCritical() << "error loading public key from environment variables";
-        encRequestData.errorCode = ErrorCode::ApiMissingAgwPublicKey;
-        return encRequestData;
-    }
+    QByteArray encryptedKeyPayload;
+    QByteArray encryptedApiPayload;
+    try {
+        QSimpleCrypto::QRsa rsa;

-    QByteArray encryptedKeyPayload = CryptoUtils::rsaEncrypt(QJsonDocument(keyPayload).toJson(), publicKey, RSA_PKCS1_PADDING);
-    EVP_PKEY_free(publicKey);
+        EVP_PKEY *publicKey = nullptr;
+        try {
+            QByteArray rsaKey = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
+            QSimpleCrypto::QRsa rsa;
+            publicKey = rsa.getPublicKeyFromByteArray(rsaKey);
+        } catch (...) {
+            Utils::logException();
+            qCritical() << "error loading public key from environment variables";
+            encRequestData.errorCode = ErrorCode::ApiMissingAgwPublicKey;
+            return encRequestData;
+        }

-    QByteArray encryptedApiPayload = CryptoUtils::encryptAes256Cbc(QJsonDocument(apiPayload).toJson(), encRequestData.key, encRequestData.iv);
+        encryptedKeyPayload = rsa.encrypt(QJsonDocument(keyPayload).toJson(), publicKey, RSA_PKCS1_PADDING);
+        EVP_PKEY_free(publicKey);

-    if (encryptedKeyPayload.isEmpty() || encryptedApiPayload.isEmpty()) {
+        encryptedApiPayload = blockCipher.encryptAesBlockCipher(QJsonDocument(apiPayload).toJson(), encRequestData.key, encRequestData.iv,
+                                                                "", encRequestData.salt);
+    } catch (...) {
+        Utils::logException();
        qCritical() << "error when encrypting the request body";
        encRequestData.errorCode = ErrorCode::ApiConfigDecryptionError;
        return encRequestData;
@@ -191,11 +139,11 @@ GatewayController::DecryptionResult GatewayController::tryDecryptResponseBody(co
    result.decryptedBody = encryptedResponseBody;
    result.isDecryptionSuccessful = false;

-    QByteArray decrypted = CryptoUtils::decryptAes256Cbc(encryptedResponseBody, key, iv);
-    if (!decrypted.isEmpty()) {
-        result.decryptedBody = decrypted;
+    try {
+        QSimpleCrypto::QBlockCipher blockCipher;
+        result.decryptedBody = blockCipher.decryptAesBlockCipher(encryptedResponseBody, key, iv, "", salt);
        result.isDecryptionSuccessful = true;
-    } else {
+    } catch (...) {
        result.decryptedBody = encryptedResponseBody;
        result.isDecryptionSuccessful = false;
    }
@@ -258,9 +206,8 @@ ErrorCode GatewayController::post(const QString &endpoint, const QJsonObject api
        bypassProxy(endpoint, serviceType, userCountryCode, requestFunction, replyProcessingFunction);
    }

-    responseBody = decryptionResult.decryptedBody;
-    const auto errorCode =
-            apiUtils::checkNetworkReplyErrors(sslErrors, replyErrorString, replyError, httpStatusCode, responseBody);
+    auto errorCode =
+            apiUtils::checkNetworkReplyErrors(sslErrors, replyErrorString, replyError, httpStatusCode, decryptionResult.decryptedBody);
    if (errorCode) {
        return errorCode;
    }
@@ -270,6 +217,7 @@ ErrorCode GatewayController::post(const QString &endpoint, const QJsonObject api
        return ErrorCode::ApiConfigDecryptionError;
    }

+    responseBody = decryptionResult.decryptedBody;
    return ErrorCode::NoError;
 }

@@ -308,12 +256,13 @@ QFuture<QPair<ErrorCode, QByteArray>> GatewayController::postAsync(const QString
            auto errorCode = apiUtils::checkNetworkReplyErrors(sslErrors, replyErrorString, replyError, httpStatusCode,
                                                               decryptionResult.decryptedBody);
            if (errorCode) {
-                promise->addResult(qMakePair(errorCode, decryptionResult.decryptedBody));
+                promise->addResult(qMakePair(errorCode, QByteArray()));
                promise->finish();
                return;
            }

            if (!decryptionResult.isDecryptionSuccessful) {
+                Utils::logException();
                qCritical() << "error when decrypting the request body";
                promise->addResult(qMakePair(ErrorCode::ApiConfigDecryptionError, QByteArray()));
                promise->finish();
@@ -356,9 +305,8 @@ QFuture<QPair<ErrorCode, QByteArray>> GatewayController::postAsync(const QString
            QStringList proxyStorageUrls;
            appendStorageUrls(primaryBaseUrls, proxyStorageUrls);
            appendStorageUrls(fallbackBaseUrls, proxyStorageUrls);
-            const QString proxyUrlsCacheKey = getProxyUrlsCacheKey(serviceType, userCountryCode);

-            getProxyUrlsAsync(proxyStorageUrls, 0, proxyUrlsCacheKey, [this, encRequestData, endpoint, processResponse](const QStringList &proxyUrls) {
+            getProxyUrlsAsync(proxyStorageUrls, 0, [this, encRequestData, endpoint, processResponse](const QStringList &proxyUrls) {
                getProxyUrlAsync(proxyUrls, 0, [this, encRequestData, endpoint, processResponse](const QString &proxyUrl) {
                    bypassProxyAsync(endpoint, proxyUrl, encRequestData,
                                     [processResponse, this](const QByteArray &decryptedBody, bool isDecryptionSuccessful,
@@ -404,6 +352,8 @@ QStringList GatewayController::getProxyUrls(const QString &serviceType, const QS
    std::shuffle(primaryBaseUrls.begin(), primaryBaseUrls.end(), generator);
    std::shuffle(fallbackBaseUrls.begin(), fallbackBaseUrls.end(), generator);

+    QByteArray key = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
+
    auto appendStorageUrls = [&serviceType, &userCountryCode](const QStringList &baseUrls, QStringList &target) {
        if (!serviceType.isEmpty()) {
            for (const auto &baseUrl : baseUrls) {
@@ -419,12 +369,10 @@ QStringList GatewayController::getProxyUrls(const QString &serviceType, const QS
    QStringList proxyStorageUrls;
    appendStorageUrls(primaryBaseUrls, proxyStorageUrls);
    appendStorageUrls(fallbackBaseUrls, proxyStorageUrls);
-    const QString proxyUrlsCacheKey = getProxyUrlsCacheKey(serviceType, userCountryCode);
-    const QByteArray cachedProxyUrlsEncrypted = m_appSettingsRepository->readGatewayProxyUrls(proxyUrlsCacheKey);

    if (proxyStorageUrls.empty()) {
        qDebug() << "empty storage endpoint list";
-        return readCachedProxyUrls(cachedProxyUrlsEncrypted, m_isDevEnvironment);
+        return {};
    }

    for (const auto &proxyStorageUrl : proxyStorageUrls) {
@@ -439,8 +387,26 @@ QStringList GatewayController::getProxyUrls(const QString &serviceType, const QS
            auto encryptedResponseBody = reply->readAll();
            reply->deleteLater();

+            EVP_PKEY *privateKey = nullptr;
            QByteArray responseBody;
-            if (!decryptProxyUrlsPayload(encryptedResponseBody, m_isDevEnvironment, responseBody)) {
+            try {
+                if (!m_isDevEnvironment) {
+                    QCryptographicHash hash(QCryptographicHash::Sha512);
+                    hash.addData(key);
+                    QByteArray hashResult = hash.result().toHex();
+
+                    QByteArray key = QByteArray::fromHex(hashResult.left(64));
+                    QByteArray iv = QByteArray::fromHex(hashResult.mid(64, 32));
+
+                    QByteArray ba = QByteArray::fromBase64(encryptedResponseBody);
+
+                    QSimpleCrypto::QBlockCipher blockCipher;
+                    responseBody = blockCipher.decryptAesBlockCipher(ba, key, iv);
+                } else {
+                    responseBody = encryptedResponseBody;
+                }
+            } catch (...) {
+                Utils::logException();
                qCritical() << "error loading private key from environment variables or decrypting payload" << encryptedResponseBody;
                continue;
            }
@@ -451,8 +417,6 @@ QStringList GatewayController::getProxyUrls(const QString &serviceType, const QS
            for (const auto &endpoint : endpointsArray) {
                endpoints.push_back(endpoint.toString());
            }
-            m_appSettingsRepository->writeGatewayProxyUrls(proxyUrlsCacheKey, encryptedResponseBody);
-
            return endpoints;
        } else {
            auto replyError = reply->error();
@@ -464,7 +428,7 @@ QStringList GatewayController::getProxyUrls(const QString &serviceType, const QS
            reply->deleteLater();
        }
    }
-    return readCachedProxyUrls(cachedProxyUrlsEncrypted, m_isDevEnvironment);
+    return {};
 }

 bool GatewayController::shouldBypassProxy(const QNetworkReply::NetworkError &replyError, const QByteArray &decryptedResponseBody,
@@ -495,19 +459,15 @@ bool GatewayController::shouldBypassProxy(const QNetworkReply::NetworkError &rep
        qDebug() << "the response contains an html tag";
        return true;
    } 
-    if (apiHttpStatus == httpStatusCodeRequestTimeout) {
-        return false;
-    }
    if (apiHttpStatus == httpStatusCodeNotFound) {
        if (responseBody.contains(errorResponsePattern1) || responseBody.contains(errorResponsePattern2)
-            || responseBody.contains(errorResponsePattern3) || responseBody.contains(errorResponsePatternQrSessionNotFound)
-            || responseBody.contains(errorResponsePatternSessionNotFound)) {
+            || responseBody.contains(errorResponsePattern3)) {
            return false;
        } else {
            qDebug() << replyError;
            return true;
        }
-    }
+    } 
    if (apiHttpStatus == httpStatusCodeNotImplemented) {
        if (responseBody.contains(updateRequestResponsePattern)) {
            return false;
@@ -606,12 +566,10 @@ void GatewayController::bypassProxy(const QString &endpoint, const QString &serv
 }

 void GatewayController::getProxyUrlsAsync(const QStringList proxyStorageUrls, const int currentProxyStorageIndex,
-                                          const QString &proxyUrlsCacheKey, std::function<void(const QStringList &)> onComplete)
+                                          std::function<void(const QStringList &)> onComplete)
 {
-    const QByteArray cachedProxyUrlsEncrypted = m_appSettingsRepository->readGatewayProxyUrls(proxyUrlsCacheKey);
-
    if (currentProxyStorageIndex >= proxyStorageUrls.size()) {
-        onComplete(shuffledProxyUrls(readCachedProxyUrls(cachedProxyUrlsEncrypted, m_isDevEnvironment)));
+        onComplete({});
        return;
    }

@@ -624,17 +582,33 @@ void GatewayController::getProxyUrlsAsync(const QStringList proxyStorageUrls, co

    // connect(reply, &QNetworkReply::sslErrors, this, [state](const QList<QSslError> &e) { *(state->sslErrors) = e; });

-    connect(reply, &QNetworkReply::finished, this,
-            [this, proxyStorageUrls, currentProxyStorageIndex, proxyUrlsCacheKey, onComplete, reply]() {
+    connect(reply, &QNetworkReply::finished, this, [this, proxyStorageUrls, currentProxyStorageIndex, onComplete, reply]() {
        if (reply->error() == QNetworkReply::NoError) {
            QByteArray encrypted = reply->readAll();
            reply->deleteLater();

            QByteArray responseBody;
-            if (!decryptProxyUrlsPayload(encrypted, m_isDevEnvironment, responseBody)) {
+            try {
+                QByteArray key = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
+                if (!m_isDevEnvironment) {
+                    QCryptographicHash hash(QCryptographicHash::Sha512);
+                    hash.addData(key);
+                    QByteArray h = hash.result().toHex();
+
+                    QByteArray decKey = QByteArray::fromHex(h.left(64));
+                    QByteArray iv = QByteArray::fromHex(h.mid(64, 32));
+                    QByteArray ba = QByteArray::fromBase64(encrypted);
+
+                    QSimpleCrypto::QBlockCipher cipher;
+                    responseBody = cipher.decryptAesBlockCipher(ba, decKey, iv);
+                } else {
+                    responseBody = encrypted;
+                }
+            } catch (...) {
+                Utils::logException();
                qCritical() << "error decrypting payload";
                QMetaObject::invokeMethod(
-                        this, [=]() { getProxyUrlsAsync(proxyStorageUrls, currentProxyStorageIndex + 1, proxyUrlsCacheKey, onComplete); }, Qt::QueuedConnection);
+                        this, [=]() { getProxyUrlsAsync(proxyStorageUrls, currentProxyStorageIndex + 1, onComplete); }, Qt::QueuedConnection);
                return;
            }

@@ -642,9 +616,13 @@ void GatewayController::getProxyUrlsAsync(const QStringList proxyStorageUrls, co
            QStringList endpoints;
            for (const QJsonValue &endpoint : endpointsArray)
                endpoints.push_back(endpoint.toString());
-            m_appSettingsRepository->writeGatewayProxyUrls(proxyUrlsCacheKey, encrypted);

-            onComplete(shuffledProxyUrls(endpoints));
+            QStringList shuffled = endpoints;
+            std::random_device randomDevice;
+            std::mt19937 generator(randomDevice());
+            std::shuffle(shuffled.begin(), shuffled.end(), generator);
+
+            onComplete(shuffled);
            return;
        }

@@ -653,7 +631,7 @@ void GatewayController::getProxyUrlsAsync(const QStringList proxyStorageUrls, co
        qDebug() << "go to the next storage endpoint";
        reply->deleteLater();
        QMetaObject::invokeMethod(
-                this, [=]() { getProxyUrlsAsync(proxyStorageUrls, currentProxyStorageIndex + 1, proxyUrlsCacheKey, onComplete); }, Qt::QueuedConnection);
+                this, [=]() { getProxyUrlsAsync(proxyStorageUrls, currentProxyStorageIndex + 1, onComplete); }, Qt::QueuedConnection);
    });
 }

--- a/client/core/controllers/gatewayController.h
+++ b/client/core/controllers/gatewayController.h
@@ -16,16 +16,13 @@
    #include "platforms/ios/ios_controller.h"
 #endif

-class SecureAppSettingsRepository;
-
 class GatewayController : public QObject
 {
    Q_OBJECT

 public:
    explicit GatewayController(const QString &gatewayEndpoint, const bool isDevEnvironment, const int requestTimeoutMsecs,
-                               const bool isStrictKillSwitchEnabled, SecureAppSettingsRepository *appSettingsRepository,
-                               QObject *parent = nullptr);
+                               const bool isStrictKillSwitchEnabled, QObject *parent = nullptr);

    amnezia::ErrorCode post(const QString &endpoint, const QJsonObject apiPayload, QByteArray &responseBody);
    QFuture<QPair<amnezia::ErrorCode, QByteArray>> postAsync(const QString &endpoint, const QJsonObject apiPayload);
@@ -58,7 +55,7 @@ private:
                     std::function<bool(QNetworkReply *reply, const QList<QSslError> &sslErrors)> replyProcessingFunction);

    void getProxyUrlsAsync(const QStringList proxyStorageUrls, const int currentProxyStorageIndex,
-                           const QString &proxyUrlsCacheKey, std::function<void(const QStringList &)> onComplete);
+                           std::function<void(const QStringList &)> onComplete);
    void getProxyUrlAsync(const QStringList proxyUrls, const int currentProxyIndex, std::function<void(const QString &)> onComplete);
    void bypassProxyAsync(
            const QString &endpoint, const QString &proxyUrl, EncryptedRequestData encRequestData,
@@ -68,7 +65,6 @@ private:
    QString m_gatewayEndpoint;
    bool m_isDevEnvironment = false;
    bool m_isStrictKillSwitchEnabled = false;
-    SecureAppSettingsRepository *m_appSettingsRepository = nullptr;

    inline static QString m_proxyUrl;
 };
--- a/client/core/controllers/selfhosted/exportController.cpp
+++ b/client/core/controllers/selfhosted/exportController.cpp
@@ -323,18 +323,6 @@ ExportController::ExportResult ExportController::generateXrayConfig(const QStrin
        vlessServer.shortId = realitySettings.value(amnezia::protocols::xray::shortId).toString();
        vlessServer.fingerprint = realitySettings.value(amnezia::protocols::xray::fingerprint).toString("chrome");
        vlessServer.spiderX = realitySettings.value(amnezia::protocols::xray::spiderX).toString("");
-    } else if (vlessServer.security == "tls") {
-        QJsonObject tlsSettings = streamSettings.value("tlsSettings").toObject();
-        vlessServer.serverName = tlsSettings.value(amnezia::protocols::xray::serverName).toString();
-        vlessServer.fingerprint = tlsSettings.value(amnezia::protocols::xray::fingerprint).toString();
-        // alpn: serialize array back to comma-separated for VLESS URI
-        QJsonArray alpnArr = tlsSettings.value("alpn").toArray();
-        QStringList alpnList;
-        for (const QJsonValue &v : alpnArr) {
-            alpnList << v.toString();
-        }
-        // alpn goes into vless URI query param — handled by Serialize via serverName/alpn fields
-        // VlessServerObject doesn't have alpn field, so we embed in serverName if needed
    }

    result.nativeConfigString = amnezia::serialization::vless::Serialize(vlessServer, "AmneziaVPN");
--- a/client/core/controllers/selfhosted/exportController.h
+++ b/client/core/controllers/selfhosted/exportController.h
@@ -48,7 +48,6 @@ signals:
    void appendClientRequested(const QString &serverId, const QString &clientId, const QString &clientName, DockerContainer container);
    void updateClientsRequested(const QString &serverId, DockerContainer container);
    void revokeClientRequested(const QString &serverId, int row, DockerContainer container);
-    void revokeFinished(ErrorCode errorCode);
    void renameClientRequested(const QString &serverId, int row, const QString &clientName, DockerContainer container);

 public slots:
--- a/client/core/controllers/selfhosted/importController.cpp
+++ b/client/core/controllers/selfhosted/importController.cpp
@@ -486,7 +486,7 @@ QJsonObject ImportController::extractOpenVpnConfig(const QString &data) const
    QJsonObject config;
    config[configKey::containers] = arr;
    config[configKey::defaultContainer] = configKey::amneziaOpenvpn;
-    config[configKey::description] = m_serversRepository->nextAvailableServerName();
+    config[configKey::description] = m_appSettingsRepository->nextAvailableServerName();

    const static QRegularExpression dnsRegExp("dhcp-option DNS (\\b\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\b)");
    QRegularExpressionMatchIterator dnsMatch = dnsRegExp.globalMatch(data);
@@ -645,7 +645,7 @@ QJsonObject ImportController::extractWireGuardConfig(const QString &data, Config
    QJsonObject config;
    config[configKey::containers] = arr;
    config[configKey::defaultContainer] = containerName;
-    config[configKey::description] = m_serversRepository->nextAvailableServerName();
+    config[configKey::description] = m_appSettingsRepository->nextAvailableServerName();

    const static QRegularExpression dnsRegExp(
            "DNS = "
@@ -699,7 +699,7 @@ QJsonObject ImportController::extractXrayConfig(const QString &data, ConfigTypes
            ? configKey::amneziaSsxray
            : configKey::amneziaXray;
    if (description.isEmpty()) {
-        config[configKey::description] = m_serversRepository->nextAvailableServerName();
+        config[configKey::description] = m_appSettingsRepository->nextAvailableServerName();
    } else {
        config[configKey::description] = description;
    }
--- a/client/core/controllers/selfhosted/installController.cpp
+++ b/client/core/controllers/selfhosted/installController.cpp
@@ -2,7 +2,6 @@

 #include "core/models/protocolConfig.h"

-#include <QCoreApplication>
 #include <QDebug>
 #include <QEventLoop>
 #include <QFutureWatcher>
@@ -20,8 +19,6 @@
 #include "core/installers/openvpnInstaller.h"
 #include "core/installers/sftpInstaller.h"
 #include "core/installers/socks5Installer.h"
-#include "core/installers/mtProxyInstaller.h"
-#include "core/installers/telemtInstaller.h"
 #include "core/installers/torInstaller.h"
 #include "core/installers/wireguardInstaller.h"
 #include "core/installers/xrayInstaller.h"
@@ -37,7 +34,6 @@
 #include "core/utils/constants/configKeys.h"
 #include "core/utils/constants/protocolConstants.h"
 #include "core/models/containerConfig.h"
-#include "core/models/protocols/mtProxyProtocolConfig.h"
 #include "core/models/protocols/awgProtocolConfig.h"
 #include "ui/models/protocols/wireguardConfigModel.h"
 #include "core/utils/utilities.h"
@@ -57,31 +53,6 @@ using namespace ProtocolUtils;
 namespace
 {
    Logger logger("InstallController");
-
-    bool dockerDaemonContainerMissing(const QString &out, const QString &containerDockerName)
-    {
-        if (!out.contains(QLatin1String("Error response from daemon"), Qt::CaseInsensitive)) {
-            return false;
-        }
-        if (out.contains(QLatin1String("No such container"), Qt::CaseInsensitive)
-            && out.contains(containerDockerName, Qt::CaseInsensitive)) {
-            return true;
-        }
-        if (out.size() < 700 && out.contains(QLatin1String("is not running"), Qt::CaseInsensitive)) {
-            return true;
-        }
-        return false;
-    }
-
-    QString buildRemoveContainerScript(const amnezia::ScriptVars &vars, bool removeDataVolume)
-    {
-        QString script = SshSession::replaceVars(amnezia::scriptData(SharedScriptType::remove_container), vars);
-        if (removeDataVolume) {
-            script += QLatin1String("\nsudo docker volume rm -f $CONTAINER_NAME-data 2>/dev/null || true");
-            script = SshSession::replaceVars(script, vars);
-        }
-        return script;
-    }
 }

 InstallController::InstallController(SecureServersRepository *serversRepository,
@@ -103,7 +74,7 @@ ErrorCode InstallController::setupContainer(const ServerCredentials &credentials
                                            bool isUpdate)
 {
    qDebug().noquote() << "InstallController::setupContainer" << ContainerUtils::containerToString(container);
-    SshSession sshSession;
+    SshSession sshSession(this);
    ErrorCode e = ErrorCode::NoError;

    e = isUserInSudo(credentials, sshSession);
@@ -130,10 +101,9 @@ ErrorCode InstallController::setupContainer(const ServerCredentials &credentials
        return e;
    qDebug().noquote() << "InstallController::setupContainer prepareHostWorker finished";

-    const amnezia::ScriptVars removeContainerVars =
-            amnezia::genBaseVars(credentials, container, QString(), QString());
-    const bool removeDataVolume = !isUpdate && (container == DockerContainer::MtProxy || container == DockerContainer::Telemt);
-    sshSession.runScript(credentials, buildRemoveContainerScript(removeContainerVars, removeDataVolume));
+    sshSession.runScript(credentials,
+                                  sshSession.replaceVars(amnezia::scriptData(SharedScriptType::remove_container),
+                                                                  amnezia::genBaseVars(credentials, container, QString(), QString())));
    qDebug().noquote() << "InstallController::setupContainer removeContainer finished";

    qDebug().noquote() << "buildContainerWorker start";
@@ -158,23 +128,14 @@ ErrorCode InstallController::setupContainer(const ServerCredentials &credentials
    return startupContainerWorker(credentials, container, config, sshSession);
 }

-ErrorCode InstallController::updateServerConfig(const QString &serverId, DockerContainer container, const ContainerConfig &oldConfig,
-                                                ContainerConfig &newConfig)
+ErrorCode InstallController::updateContainer(const QString &serverId, DockerContainer container, const ContainerConfig &oldConfig,
+                                             ContainerConfig &newConfig)
 {
    if (!isUpdateDockerContainerRequired(container, oldConfig, newConfig)) {
        auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
        if (!adminConfig.has_value()) {
            return ErrorCode::InternalError;
        }
-        if (container == DockerContainer::MtProxy) {
-            ServerCredentials credentials = adminConfig->credentials();
-            SshSession sshSession;
-            MtProxyInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, newConfig);
-        } else if (container == DockerContainer::Telemt) {
-            ServerCredentials credentials = adminConfig->credentials();
-            SshSession sshSession;
-            TelemtInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, newConfig);
-        }
        adminConfig->updateContainerConfig(container, newConfig);
        m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
        return ErrorCode::NoError;
@@ -188,10 +149,10 @@ ErrorCode InstallController::updateServerConfig(const QString &serverId, DockerC
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
+    SshSession sshSession(this);

    bool reinstallRequired = isReinstallContainerRequired(container, oldConfig, newConfig);
-    qDebug() << "InstallController::updateServerConfig for container" << container << "reinstall required is" << reinstallRequired;
+    qDebug() << "InstallController::updateContainer for container" << container << "reinstall required is" << reinstallRequired;

    ErrorCode errorCode = ErrorCode::NoError;
    if (reinstallRequired) {
@@ -201,23 +162,10 @@ ErrorCode InstallController::updateServerConfig(const QString &serverId, DockerC
        if (errorCode == ErrorCode::NoError) {
            errorCode = startupContainerWorker(credentials, container, newConfig, sshSession);
        }
-
-        if (errorCode == ErrorCode::NoError
-            && (container == DockerContainer::MtProxy || container == DockerContainer::Telemt)) {
-            const QString containerName = ContainerUtils::containerToString(container);
-            errorCode = sshSession.runScript(credentials, "sudo docker restart " + containerName);
-        }
    }

    if (errorCode == ErrorCode::NoError) {
-        if (container == DockerContainer::MtProxy) {
-            MtProxyInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, newConfig);
-        } else if (container == DockerContainer::Telemt) {
-            TelemtInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, newConfig);
-        }
-        if (reinstallRequired) {
-            clearCachedProfile(serverId, container);
-        }
+        clearCachedProfile(serverId, container);
        adminConfig->updateContainerConfig(container, newConfig);
        m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
    }
@@ -225,41 +173,6 @@ ErrorCode InstallController::updateServerConfig(const QString &serverId, DockerC
    return errorCode;
 }

-ErrorCode InstallController::updateClientConfig(const QString &serverId, DockerContainer container, ContainerConfig &newConfig)
-{
-    switch (m_serversRepository->serverKind(serverId)) {
-    case serverConfigUtils::ConfigType::SelfHostedAdmin: {
-        auto config = m_serversRepository->selfHostedAdminConfig(serverId);
-        if (!config.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        config->updateContainerConfig(container, newConfig);
-        m_serversRepository->editServer(serverId, config->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
-        return ErrorCode::NoError;
-    }
-    case serverConfigUtils::ConfigType::SelfHostedUser: {
-        auto config = m_serversRepository->selfHostedUserConfig(serverId);
-        if (!config.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        config->updateContainerConfig(container, newConfig);
-        m_serversRepository->editServer(serverId, config->toJson(), serverConfigUtils::ConfigType::SelfHostedUser);
-        return ErrorCode::NoError;
-    }
-    case serverConfigUtils::ConfigType::Native: {
-        auto config = m_serversRepository->nativeConfig(serverId);
-        if (!config.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        config->updateContainerConfig(container, newConfig);
-        m_serversRepository->editServer(serverId, config->toJson(), serverConfigUtils::ConfigType::Native);
-        return ErrorCode::NoError;
-    }
-    default:
-        return ErrorCode::InternalError;
-    }
-}
-
 void InstallController::clearCachedProfile(const QString &serverId, DockerContainer container)
 {
    if (ContainerUtils::containerService(container) == ServiceType::Other) {
@@ -271,9 +184,9 @@ void InstallController::clearCachedProfile(const QString &serverId, DockerContai
        return;
    }

+    adminConfig->clearCachedClientProfile(container);
    const ContainerConfig containerConfigModel = adminConfig->containerConfig(container);

-    adminConfig->clearCachedClientProfile(container);
    m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);

    emit clientRevocationRequested(serverId, containerConfigModel, container);
@@ -281,74 +194,37 @@ void InstallController::clearCachedProfile(const QString &serverId, DockerContai

 ErrorCode InstallController::validateAndPrepareConfig(const QString &serverId)
 {
-    const auto kind = m_serversRepository->serverKind(serverId);
-
-    DockerContainer container = DockerContainer::None;
-    ContainerConfig containerConfig;
-
-    switch (kind) {
-    case serverConfigUtils::ConfigType::SelfHostedAdmin: {
-        const auto cfg = m_serversRepository->selfHostedAdminConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        containerConfig = cfg->containerConfig(container);
-        break;
-    }
-    case serverConfigUtils::ConfigType::SelfHostedUser: {
-        const auto cfg = m_serversRepository->selfHostedUserConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        containerConfig = cfg->containerConfig(container);
-        break;
-    }
-    case serverConfigUtils::ConfigType::Native: {
-        const auto cfg = m_serversRepository->nativeConfig(serverId);
-        if (!cfg.has_value()) {
-            return ErrorCode::InternalError;
-        }
-        container = cfg->defaultContainer;
-        containerConfig = cfg->containerConfig(container);
-        break;
-    }
-    default:
-        return ErrorCode::InternalError;
-    }
-
-    if (container == DockerContainer::None) {
-        return ErrorCode::NoInstalledContainersError;
-    }
-
-    if (containerConfig.protocolConfig.hasClientConfig()) {
-        return ErrorCode::NoError;
-    }
-
-    if (kind != serverConfigUtils::ConfigType::SelfHostedAdmin) {
-        return ErrorCode::InternalError;
-    }
-
    auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
    if (!adminConfig.has_value()) {
        return ErrorCode::InternalError;
    }

+    DockerContainer container = adminConfig->defaultContainer;
+
+    if (container == DockerContainer::None) {
+        return ErrorCode::NoInstalledContainersError;
+    }
+
+    ContainerConfig containerConfig = adminConfig->containerConfig(container);
    ServerCredentials credentials = adminConfig->credentials();
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-
    SshSession sshSession;
-    const QString clientName = QString("Admin [%1]").arg(QSysInfo::prettyProductName());
-    const ErrorCode errorCode = processContainerForAdmin(container, containerConfig, credentials, sshSession, serverId, clientName);
-    if (errorCode != ErrorCode::NoError) {
-        return errorCode;
-    }

-    adminConfig->updateContainerConfig(container, containerConfig);
-    m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
+    auto isProtocolConfigExists = [](const ContainerConfig &cfg) {
+        return cfg.protocolConfig.hasClientConfig();
+    };
+
+    if (!isProtocolConfigExists(containerConfig)) {
+        QString clientName = QString("Admin [%1]").arg(QSysInfo::prettyProductName());
+        ErrorCode errorCode = processContainerForAdmin(container, containerConfig, credentials, sshSession, serverId, clientName);
+        if (errorCode != ErrorCode::NoError) {
+            return errorCode;
+        }
+        adminConfig->updateContainerConfig(container, containerConfig);
+        m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
+    }

    return ErrorCode::NoError;
 }
@@ -382,7 +258,7 @@ void InstallController::addEmptyServer(const ServerCredentials &credentials)
    serverConfig.userName = credentials.userName;
    serverConfig.password = credentials.secretData;
    serverConfig.port = credentials.port;
-    serverConfig.description = m_serversRepository->nextAvailableServerName();
+    serverConfig.description = m_appSettingsRepository->nextAvailableServerName();
    serverConfig.displayName = serverConfig.description.isEmpty() ? serverConfig.hostName : serverConfig.description;
    serverConfig.defaultContainer = DockerContainer::None;

@@ -532,24 +408,9 @@ ErrorCode InstallController::configureContainerWorker(const ServerCredentials &c
            sshSession.replaceVars(amnezia::scriptData(ProtocolScriptType::configure_container, container), baseVars),
            cbReadStdOut, cbReadStdErr);

-    if (e != ErrorCode::NoError) {
-        return e;
-    }
-
-    if (dockerDaemonContainerMissing(stdOut, ContainerUtils::containerToString(container))) {
-        qDebug() << "configureContainerWorker: Docker daemon reports container missing/stopped, output:" << stdOut;
-        return ErrorCode::ServerContainerMissingError;
-    }
-
    updateContainerConfigAfterInstallation(container, config, stdOut);

-    if (container == DockerContainer::MtProxy) {
-        MtProxyInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, config);
-    } else if (container == DockerContainer::Telemt) {
-        TelemtInstaller::uploadClientSettingsSnapshot(sshSession, credentials, container, config);
-    }
-
-    return ErrorCode::NoError;
+    return e;
 }

 ErrorCode InstallController::startupContainerWorker(const ServerCredentials &credentials, DockerContainer container, const ContainerConfig &config, SshSession &sshSession)
@@ -693,41 +554,12 @@ bool InstallController::isReinstallContainerRequired(DockerContainer container,
    }

    if (container == DockerContainer::Xray || container == DockerContainer::SSXray) {
-        const auto *oldXrayConfig = oldConfig.getXrayProtocolConfig();
-        const auto *newXrayConfig = newConfig.getXrayProtocolConfig();
-
+        const auto* oldXrayConfig = oldConfig.getXrayProtocolConfig();
+        const auto* newXrayConfig = newConfig.getXrayProtocolConfig();
+        
        if (oldXrayConfig && newXrayConfig) {
-            if (!oldXrayConfig->serverConfig.hasEqualServerSettings(newXrayConfig->serverConfig)) {
+            if (oldXrayConfig->serverConfig.port != newXrayConfig->serverConfig.port)
                return true;
-            }
-        }
-    }
-
-    if (container == DockerContainer::MtProxy) {
-        const auto *oldMt = oldConfig.getMtProxyProtocolConfig();
-        const auto *newMt = newConfig.getMtProxyProtocolConfig();
-        if (oldMt && newMt) {
-            const QString oldPort =
-                    oldMt->port.isEmpty() ? QString(protocols::mtProxy::defaultPort) : oldMt->port;
-            const QString newPort =
-                    newMt->port.isEmpty() ? QString(protocols::mtProxy::defaultPort) : newMt->port;
-            if (oldPort != newPort) {
-                return true;
-            }
-        }
-    }
-
-    if (container == DockerContainer::Telemt) {
-        const auto *oldT = oldConfig.getTelemtProtocolConfig();
-        const auto *newT = newConfig.getTelemtProtocolConfig();
-        if (oldT && newT) {
-            const QString oldPort =
-                    oldT->port.isEmpty() ? QString(protocols::telemt::defaultPort) : oldT->port;
-            const QString newPort =
-                    newT->port.isEmpty() ? QString(protocols::telemt::defaultPort) : newT->port;
-            if (oldPort != newPort) {
-                return true;
-            }
        }
    }

@@ -767,23 +599,9 @@ ErrorCode InstallController::installDockerWorker(const ServerCredentials &creden

    qDebug().noquote() << "InstallController::installDockerWorker" << stdOut;

-    if (container == DockerContainer::MtProxy || container == DockerContainer::Telemt) {
-        QString conntrackOut;
-        auto cbConntrack = [&](const QString &data, libssh::Client &) {
-            conntrackOut += data + "\n";
-            return ErrorCode::NoError;
-        };
-        sshSession.runScript(
-                credentials,
-                sshSession.replaceVars(amnezia::scriptData(SharedScriptType::install_conntrack),
-                                       amnezia::genBaseVars(credentials, DockerContainer::None, QString(), QString())),
-                cbConntrack, cbConntrack);
-        qDebug().noquote() << "InstallController::installDockerWorker install_conntrack:" << conntrackOut;
-    }
-
    if (container == DockerContainer::Awg2) {
-        QRegularExpression kernelVersionRegex(R"(Linux\s+(\d+)\.(\d+)[^\d]*)");
-        QRegularExpressionMatch match = kernelVersionRegex.match(stdOut);
+        QRegularExpression regex(R"(Linux\s+(\d+)\.(\d+)[^\d]*)");
+        QRegularExpressionMatch match = regex.match(stdOut);
        if (match.hasMatch()) {
            int majorVersion = match.captured(1).toInt();
            int minorVersion = match.captured(2).toInt();
@@ -796,19 +614,8 @@ ErrorCode InstallController::installDockerWorker(const ServerCredentials &creden

    if (stdOut.contains("lock"))
        return ErrorCode::ServerPacketManagerError;
-    if (stdOut.contains("Container runtime is not supported"))
-        return ErrorCode::ServerContainerRuntimeNotSupported;
-    
-    QRegularExpression notFoundRegex(
-        R"(^.*(?:sudo:|docker:).*not found.*$)",
-        QRegularExpression::MultilineOption);
-
-    if (notFoundRegex.match(stdOut).hasMatch()) {
+    if (stdOut.contains("command not found"))
        return ErrorCode::ServerDockerFailedError;
-    }
-    
-    if (stdOut.contains("Container runtime service not running"))
-        return ErrorCode::ContainerRuntimeServiceNotRunning;

    return error;
 }
@@ -845,9 +652,9 @@ ErrorCode InstallController::isUserInSudo(const ServerCredentials &credentials,
        return ErrorCode::ServerUserNotInSudo;
    if (stdOut.contains("can't cd to") || stdOut.contains("Permission denied") || stdOut.contains("No such file or directory"))
        return ErrorCode::ServerUserDirectoryNotAccessible;
-    if (stdOut.contains(QRegularExpression(R"(\bsudoers\b)")) || stdOut.contains("is not allowed to") || stdOut.contains("can't do that"))
+    if (stdOut.contains("sudoers") || stdOut.contains("is not allowed to run sudo on"))
        return ErrorCode::ServerUserNotAllowedInSudoers;
-    if (stdOut.contains("password is required") || stdOut.contains("authentication is required"))
+    if (stdOut.contains("password is required"))
        return ErrorCode::ServerUserPasswordRequired;

    return error;
@@ -927,7 +734,7 @@ ErrorCode InstallController::rebootServer(const QString &serverId)
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
+    SshSession sshSession(this);

    QString script = QString("sudo reboot");

@@ -955,7 +762,7 @@ ErrorCode InstallController::removeAllContainers(const QString &serverId)
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
+    SshSession sshSession(this);
    ErrorCode errorCode = sshSession.runScript(credentials, amnezia::scriptData(SharedScriptType::remove_all_containers));

    if (errorCode == ErrorCode::NoError) {
@@ -977,12 +784,11 @@ ErrorCode InstallController::removeContainer(const QString &serverId, DockerCont
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
-    const amnezia::ScriptVars removeContainerVars =
-            amnezia::genBaseVars(credentials, container, QString(), QString());
-    const bool removeDataVolume = (container == DockerContainer::MtProxy || container == DockerContainer::Telemt);
-    ErrorCode errorCode =
-            sshSession.runScript(credentials, buildRemoveContainerScript(removeContainerVars, removeDataVolume));
+    SshSession sshSession(this);
+    ErrorCode errorCode = sshSession.runScript(
+            credentials,
+            sshSession.replaceVars(amnezia::scriptData(SharedScriptType::remove_container),
+                                            amnezia::genBaseVars(credentials, container, QString(), QString())));

    if (errorCode == ErrorCode::NoError) {
        QMap<DockerContainer, ContainerConfig> containers = adminConfig->containers;
@@ -1017,8 +823,6 @@ QScopedPointer<InstallerBase> InstallController::createInstaller(DockerContainer
    case DockerContainer::TorWebSite: return QScopedPointer<InstallerBase>(new TorInstaller(this));
    case DockerContainer::Sftp: return QScopedPointer<InstallerBase>(new SftpInstaller(this));
    case DockerContainer::Socks5Proxy: return QScopedPointer<InstallerBase>(new Socks5Installer(this));
-    case DockerContainer::MtProxy: return QScopedPointer<InstallerBase>(new MtProxyInstaller(this));
-    case DockerContainer::Telemt: return QScopedPointer<InstallerBase>(new TelemtInstaller(this));
    default: return QScopedPointer<InstallerBase>(new InstallerBase(this));
    }
 }
@@ -1057,20 +861,6 @@ bool InstallController::isUpdateDockerContainerRequired(DockerContainer containe
                return false;
            }
        }
-    } else if (container == DockerContainer::MtProxy) {
-        const auto *oldMt = oldConfig.getMtProxyProtocolConfig();
-        const auto *newMt = newConfig.getMtProxyProtocolConfig();
-        if (!oldMt || !newMt) {
-            return true;
-        }
-        return !oldMt->equalsDockerDeploymentSettings(*newMt);
-    } else if (container == DockerContainer::Telemt) {
-        const auto *oldT = oldConfig.getTelemtProtocolConfig();
-        const auto *newT = newConfig.getTelemtProtocolConfig();
-        if (!oldT || !newT) {
-            return true;
-        }
-        return !oldT->equalsDockerDeploymentSettings(*newT);
    }

    return true;
@@ -1086,7 +876,7 @@ ErrorCode InstallController::scanServerForInstalledContainers(const QString &ser
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
+    SshSession sshSession(this);

    QMap<DockerContainer, ContainerConfig> installedContainers;
    ErrorCode errorCode = getAlreadyInstalledContainers(credentials, installedContainers, sshSession);
@@ -1129,7 +919,7 @@ ErrorCode InstallController::scanServerForInstalledContainers(const QString &ser
 ErrorCode InstallController::installServer(const ServerCredentials &credentials, DockerContainer container, int port,
                                           TransportProto transportProto, bool &wasContainerInstalled)
 {
-    SshSession sshSession;
+    SshSession sshSession(this);
    QMap<DockerContainer, ContainerConfig> installedContainers;
    ErrorCode errorCode = getAlreadyInstalledContainers(credentials, installedContainers, sshSession);
    if (errorCode) {
@@ -1167,7 +957,7 @@ ErrorCode InstallController::installServer(const ServerCredentials &credentials,
    serverConfig.userName = credentials.userName;
    serverConfig.password = credentials.secretData;
    serverConfig.port = credentials.port;
-    serverConfig.description = m_serversRepository->nextAvailableServerName();
+    serverConfig.description = m_appSettingsRepository->nextAvailableServerName();

    for (auto iterator = preparedContainers.begin(); iterator != preparedContainers.end(); iterator++) {
        serverConfig.containers.insert(iterator.key(), iterator.value());
@@ -1198,7 +988,7 @@ ErrorCode InstallController::installContainer(const QString &serverId, DockerCon
    if (!credentials.isValid()) {
        return ErrorCode::InternalError;
    }
-    SshSession sshSession;
+    SshSession sshSession(this);
    
    QMap<DockerContainer, ContainerConfig> installedContainers;
    ErrorCode errorCode = getAlreadyInstalledContainers(credentials, installedContainers, sshSession);
@@ -1237,26 +1027,28 @@ ErrorCode InstallController::installContainer(const QString &serverId, DockerCon
    return ErrorCode::NoError;
 }

-ErrorCode InstallController::checkSshConnection(ServerCredentials &credentials, QString &output,
+ErrorCode InstallController::checkSshConnection(const ServerCredentials &credentials, QString &output,
                                                std::function<QString()> passphraseCallback)
 {
-    SshSession sshSession;
+    SshSession sshSession(this);
    ErrorCode errorCode = ErrorCode::NoError;

-    if (credentials.secretData.contains("BEGIN") && credentials.secretData.contains("PRIVATE KEY")) {
+    ServerCredentials processedCredentials = credentials;
+
+    if (processedCredentials.secretData.contains("BEGIN") && processedCredentials.secretData.contains("PRIVATE KEY")) {
        if (!passphraseCallback) {
            return ErrorCode::SshPrivateKeyError;
        }

        QString decryptedPrivateKey;
-        errorCode = sshSession.getDecryptedPrivateKey(credentials, decryptedPrivateKey, passphraseCallback);
+        errorCode = sshSession.getDecryptedPrivateKey(processedCredentials, decryptedPrivateKey, passphraseCallback);
        if (errorCode != ErrorCode::NoError) {
            return errorCode;
        }
-        credentials.secretData = decryptedPrivateKey;
+        processedCredentials.secretData = decryptedPrivateKey;
    }

-    output = sshSession.checkSshConnection(credentials, errorCode);
+    output = sshSession.checkSshConnection(processedCredentials, errorCode);
    return errorCode;
 }

@@ -1372,56 +1164,6 @@ void InstallController::updateContainerConfigAfterInstallation(DockerContainer c
            onion.replace("\n", "");
            torProtocolConfig->serverConfig.site = onion;
        }
-    } else if (container == DockerContainer::MtProxy) {
-        if (auto* mtProxyConfig = containerConfig.getMtProxyProtocolConfig()) {
-            qDebug() << "amnezia mtproxy" << stdOut;
-
-            static const QRegularExpression reSecret(
-                    QStringLiteral(R"(\[\*\]\s+Secret:\s+([0-9a-fA-F]{32}))"),
-                    QRegularExpression::CaseInsensitiveOption);
-            static const QRegularExpression reTgLink(QStringLiteral(R"(\[\*\]\s+tg://\s+link:\s+(tg://proxy\?[^\s]+))"));
-            static const QRegularExpression reTmeLink(
-                    QStringLiteral(R"(\[\*\]\s+t\.me\s+link:\s+(https://t\.me/proxy\?[^\s]+))"));
-
-            const QRegularExpressionMatch mSecret = reSecret.match(stdOut);
-            const QRegularExpressionMatch mTgLink = reTgLink.match(stdOut);
-            const QRegularExpressionMatch mTmeLink = reTmeLink.match(stdOut);
-
-            if (mSecret.hasMatch()) {
-                mtProxyConfig->secret = mSecret.captured(1);
-            }
-            if (mTgLink.hasMatch()) {
-                mtProxyConfig->tgLink = mTgLink.captured(1);
-            }
-            if (mTmeLink.hasMatch()) {
-                mtProxyConfig->tmeLink = mTmeLink.captured(1);
-            }
-        }
-    } else if (container == DockerContainer::Telemt) {
-        if (auto *telemtConfig = containerConfig.getTelemtProtocolConfig()) {
-            qDebug() << "amnezia-telemt configure stdout" << stdOut;
-
-            static const QRegularExpression reSecret(
-                    QStringLiteral(R"(\[\*\]\s+Secret:\s+([0-9a-fA-F]{32}))"),
-                    QRegularExpression::CaseInsensitiveOption);
-            static const QRegularExpression reTgLink(QStringLiteral(R"(\[\*\]\s+tg://\s+link:\s+(tg://proxy\?[^\s]+))"));
-            static const QRegularExpression reTmeLink(
-                    QStringLiteral(R"(\[\*\]\s+t\.me\s+link:\s+(https://t\.me/proxy\?[^\s]+))"));
-
-            const QRegularExpressionMatch mSecret = reSecret.match(stdOut);
-            const QRegularExpressionMatch mTgLink = reTgLink.match(stdOut);
-            const QRegularExpressionMatch mTmeLink = reTmeLink.match(stdOut);
-
-            if (mSecret.hasMatch()) {
-                telemtConfig->secret = mSecret.captured(1);
-            }
-            if (mTgLink.hasMatch()) {
-                telemtConfig->tgLink = mTgLink.captured(1);
-            }
-            if (mTmeLink.hasMatch()) {
-                telemtConfig->tmeLink = mTmeLink.captured(1);
-            }
-        }
    }
 }

@@ -1460,7 +1202,7 @@ ErrorCode InstallController::getAlreadyInstalledContainers(const ServerCredentia
            QString transportProtoStr = containerAndPortMatch.captured(3);
            DockerContainer container = ContainerUtils::containerFromString(name);

-            if (container == DockerContainer::None || ContainerUtils::isUnsupportedContainer(container)) {
+            if (container == DockerContainer::None) {
                continue;
            }

@@ -1485,7 +1227,7 @@ ErrorCode InstallController::getAlreadyInstalledContainers(const ServerCredentia
            QString transportProtoStr = torOrDnsRegMatch.captured(3);
            DockerContainer container = ContainerUtils::containerFromString(name);

-            if (container == DockerContainer::None || ContainerUtils::isUnsupportedContainer(container)) {
+            if (container == DockerContainer::None) {
                continue;
            }

@@ -1506,126 +1248,3 @@ ErrorCode InstallController::getAlreadyInstalledContainers(const ServerCredentia

    return ErrorCode::NoError;
 }
-
-ErrorCode InstallController::setDockerContainerEnabledState(const QString &serverId, DockerContainer container, bool enabled)
-{
-    if (container != DockerContainer::MtProxy && container != DockerContainer::Telemt) {
-        return ErrorCode::InternalError;
-    }
-    auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
-    if (!adminConfig.has_value()) {
-        return ErrorCode::InternalError;
-    }
-    ServerCredentials credentials = adminConfig->credentials();
-    if (!credentials.isValid()) {
-        return ErrorCode::InternalError;
-    }
-    const QString containerName = ContainerUtils::containerToString(container);
-    SshSession sshSession;
-    const QString script = enabled ? QStringLiteral("sudo docker start %1").arg(containerName)
-                                   : QStringLiteral("sudo docker stop %1").arg(containerName);
-    const ErrorCode runError = sshSession.runScript(credentials, script);
-    if (runError != ErrorCode::NoError) {
-        return runError;
-    }
-    ContainerConfig currentConfig = adminConfig->containerConfig(container);
-    bool persist = false;
-    if (auto *mtConfig = currentConfig.getMtProxyProtocolConfig()) {
-        mtConfig->isEnabled = enabled;
-        persist = true;
-    } else if (auto *telemtConfig = currentConfig.getTelemtProtocolConfig()) {
-        telemtConfig->isEnabled = enabled;
-        persist = true;
-    }
-    if (persist) {
-        adminConfig->updateContainerConfig(container, currentConfig);
-        m_serversRepository->editServer(serverId, adminConfig->toJson(), serverConfigUtils::ConfigType::SelfHostedAdmin);
-    }
-    return ErrorCode::NoError;
-}
-
-ErrorCode InstallController::queryDockerContainerStatus(const QString &serverId, DockerContainer container, int &statusOut)
-{
-    statusOut = 3;
-    auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
-    if (!adminConfig.has_value()) {
-        return ErrorCode::InternalError;
-    }
-    ServerCredentials credentials = adminConfig->credentials();
-    if (!credentials.isValid()) {
-        return ErrorCode::InternalError;
-    }
-    const QString containerName = ContainerUtils::containerToString(container);
-    QString stdOut;
-    auto cbReadStdOut = [&](const QString &data, libssh::Client &) {
-        stdOut += data;
-        return ErrorCode::NoError;
-    };
-    SshSession sshSession;
-    const QString script = QStringLiteral(
-            "sudo docker inspect --format '{{.State.Status}}' %1 2>/dev/null || echo 'not_found'")
-            .arg(containerName);
-    const ErrorCode errorCode = sshSession.runScript(credentials, script, cbReadStdOut);
-    if (errorCode != ErrorCode::NoError) {
-        return errorCode;
-    }
-    const QString status = stdOut.trimmed();
-    if (status == QLatin1String("running")) {
-        statusOut = 1;
-    } else if (status == QLatin1String("not_found") || status.isEmpty()) {
-        statusOut = 0;
-    } else if (status == QLatin1String("exited") || status == QLatin1String("created")
-               || status == QLatin1String("paused")) {
-        statusOut = 2;
-    } else {
-        statusOut = 3;
-    }
-    return ErrorCode::NoError;
-}
-
-ErrorCode InstallController::queryMtProxyDiagnostics(const QString &serverId, DockerContainer container, int listenPort,
-                                                     MtProxyContainerDiagnostics &out)
-{
-    out = {};
-    auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
-    if (!adminConfig.has_value()) {
-        return ErrorCode::InternalError;
-    }
-    ServerCredentials credentials = adminConfig->credentials();
-    if (!credentials.isValid()) {
-        return ErrorCode::InternalError;
-    }
-    SshSession sshSession;
-    return MtProxyInstaller::queryDiagnostics(sshSession, credentials, container, listenPort, out);
-}
-
-QString InstallController::fetchDockerContainerSecret(const QString &serverId, DockerContainer container)
-{
-    if (container != DockerContainer::MtProxy && container != DockerContainer::Telemt) {
-        return {};
-    }
-    auto adminConfig = m_serversRepository->selfHostedAdminConfig(serverId);
-    if (!adminConfig.has_value()) {
-        return {};
-    }
-    ServerCredentials credentials = adminConfig->credentials();
-    if (!credentials.isValid()) {
-        return {};
-    }
-    const QString containerName = ContainerUtils::containerToString(container);
-    QString stdOut;
-    auto cbReadStdOut = [&](const QString &data, libssh::Client &) {
-        stdOut += data;
-        return ErrorCode::NoError;
-    };
-    SshSession sshSession;
-    const QString path = QStringLiteral("/data/secret");
-    const QString cmd = QStringLiteral("sudo docker exec %1 cat %2").arg(containerName, path);
-    const ErrorCode errorCode = sshSession.runScript(credentials, cmd, cbReadStdOut);
-    if (errorCode != ErrorCode::NoError) {
-        return {};
-    }
-    const QString secret = stdOut.trimmed();
-    static const QRegularExpression hex32(QStringLiteral("^[0-9a-fA-F]{32}$"));
-    return hex32.match(secret).hasMatch() ? secret : QString();
-}
--- a/client/core/controllers/selfhosted/installController.h
+++ b/client/core/controllers/selfhosted/installController.h
@@ -16,7 +16,6 @@
 #include "core/models/containerConfig.h"
 #include "core/repositories/secureServersRepository.h"
 #include "core/repositories/secureAppSettingsRepository.h"
-#include "core/installers/mtProxyInstaller.h"

 class SshSession;
 class InstallerBase;
@@ -34,27 +33,12 @@ public:
    ~InstallController();

    ErrorCode setupContainer(const ServerCredentials &credentials, DockerContainer container, ContainerConfig &config, bool isUpdate = false);
-
-    // Updates server-side container settings (admin self-hosted only): reconfigures the container over SSH.
-    ErrorCode updateServerConfig(const QString &serverId, DockerContainer container, const ContainerConfig &oldConfig, ContainerConfig &newConfig);
-
-    // Updates client-local settings only: rewrites the stored container config for any self-hosted/native server. No SSH.
-    ErrorCode updateClientConfig(const QString &serverId, DockerContainer container, ContainerConfig &newConfig);
+    ErrorCode updateContainer(const QString &serverId, DockerContainer container, const ContainerConfig &oldConfig, ContainerConfig &newConfig);

    ErrorCode rebootServer(const QString &serverId);
    ErrorCode removeAllContainers(const QString &serverId);
    ErrorCode removeContainer(const QString &serverId, DockerContainer container);

-    ErrorCode setDockerContainerEnabledState(const QString &serverId, DockerContainer container, bool enabled);
-
-    /// statusOut: 0 = not deployed, 1 = running, 2 = stopped, 3 = error
-    ErrorCode queryDockerContainerStatus(const QString &serverId, DockerContainer container, int &statusOut);
-
-    ErrorCode queryMtProxyDiagnostics(const QString &serverId, DockerContainer container, int listenPort,
-                                      MtProxyContainerDiagnostics &out);
-
-    QString fetchDockerContainerSecret(const QString &serverId, DockerContainer container);
-
    ContainerConfig generateConfig(DockerContainer container, int port, TransportProto transportProto);
    ErrorCode getAlreadyInstalledContainers(const ServerCredentials &credentials, QMap<DockerContainer, ContainerConfig> &installedContainers, SshSession &sshSession);
    
@@ -69,8 +53,7 @@ public:
    
    bool isUpdateDockerContainerRequired(DockerContainer container, const ContainerConfig &oldConfig, const ContainerConfig &newConfig);
    
-    ErrorCode checkSshConnection(ServerCredentials &credentials, QString &output,
-                                 std::function<QString()> passphraseCallback = nullptr);
+    ErrorCode checkSshConnection(const ServerCredentials &credentials, QString &output, std::function<QString()> passphraseCallback = nullptr);
    
    bool isServerAlreadyExists(const ServerCredentials &credentials, int &existingServerIndex);
    
--- a/client/core/controllers/selfhosted/usersController.cpp
+++ b/client/core/controllers/selfhosted/usersController.cpp
@@ -698,7 +698,7 @@ ErrorCode UsersController::revokeXray(const int row,

    QString restartScript = QString("sudo docker restart $CONTAINER_NAME");
    error = sshSession->runScript(
-        credentials,
+        credentials, 
        sshSession->replaceVars(restartScript, amnezia::genBaseVars(credentials, container, QString(), QString()))
    );
    if (error != ErrorCode::NoError) {
@@ -758,17 +758,14 @@ ErrorCode UsersController::revokeClient(const QString &serverId, const int index
        ContainerConfig containerCfg = adminConfig->containerConfig(container);
        QString containerClientId = containerCfg.protocolConfig.clientId();

-        const bool isAdminMatch = !clientId.isEmpty() && !containerClientId.isEmpty() && containerClientId.contains(clientId);
-        if (isAdminMatch) {
+        if (!clientId.isEmpty() && !containerClientId.isEmpty() && containerClientId.contains(clientId)) {
            emit adminConfigRevoked(serverId, container);
        }

        emit clientRevoked(index);
+        emit clientsUpdated(m_clientsTable);
    }

-    emit clientsUpdated(m_clientsTable);
-    emit revokeFinished(errorCode);
-
    return errorCode;
 }

--- a/client/core/controllers/selfhosted/usersController.h
+++ b/client/core/controllers/selfhosted/usersController.h
@@ -37,7 +37,6 @@ signals:
    void clientAdded(const QJsonObject &client);
    void clientRenamed(int row, const QString &newName);
    void clientRevoked(int row);
-    void revokeFinished(ErrorCode errorCode);
    void adminConfigRevoked(const QString &serverId, DockerContainer container);

 public slots:
--- a/client/core/controllers/serversController.cpp
+++ b/client/core/controllers/serversController.cpp
@@ -44,7 +44,6 @@ bool ServersController::renameServer(const QString &serverId, const QString &nam
        auto cfg = m_serversRepository->selfHostedAdminConfig(serverId);
        if (!cfg.has_value()) return false;
        cfg->description = name;
-        cfg->displayName = name;
        m_serversRepository->editServer(serverId, cfg->toJson(), kind);
        return true;
    }
@@ -52,7 +51,6 @@ bool ServersController::renameServer(const QString &serverId, const QString &nam
        auto cfg = m_serversRepository->selfHostedUserConfig(serverId);
        if (!cfg.has_value()) return false;
        cfg->description = name;
-        cfg->displayName = name;
        m_serversRepository->editServer(serverId, cfg->toJson(), kind);
        return true;
    }
@@ -60,7 +58,6 @@ bool ServersController::renameServer(const QString &serverId, const QString &nam
        auto cfg = m_serversRepository->nativeConfig(serverId);
        if (!cfg.has_value()) return false;
        cfg->description = name;
-        cfg->displayName = name;
        m_serversRepository->editServer(serverId, cfg->toJson(), kind);
        return true;
    }
@@ -70,7 +67,6 @@ bool ServersController::renameServer(const QString &serverId, const QString &nam
        auto cfg = m_serversRepository->apiV2Config(serverId);
        if (!cfg.has_value()) return false;
        cfg->name = name;
-        cfg->displayName = name;
        cfg->nameOverriddenByUser = true;
        m_serversRepository->editServer(serverId, cfg->toJson(), kind);
        return true;
--- a/client/core/controllers/settingsController.cpp
+++ b/client/core/controllers/settingsController.cpp
@@ -217,11 +217,6 @@ void SettingsController::toggleAutoStart(bool enable)

 bool SettingsController::isStartMinimizedEnabled() const
 {
-#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
-    if (!isAutoStartEnabled()) {
-        return false;
-    }
-#endif
    return m_appSettingsRepository->isStartMinimized();
 }

@@ -363,6 +358,6 @@ void SettingsController::disablePremV1MigrationReminder()

 QString SettingsController::nextAvailableServerName() const
 {
-    return m_serversRepository->nextAvailableServerName();
+    return m_appSettingsRepository->nextAvailableServerName();
 }

--- a/client/core/controllers/updateController.cpp
+++ b/client/core/controllers/updateController.cpp
@@ -13,6 +13,7 @@
 #include "version.h"
 #include "core/controllers/gatewayController.h"
 #include "core/utils/constants/apiKeys.h"
+#include "core/utils/errorStrings.h"
 #include "core/utils/selfhosted/scriptsRegistry.h"

 namespace
@@ -20,13 +21,13 @@ namespace
    Logger logger("UpdateController");

 #if defined(Q_OS_WINDOWS)
-    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN_%1_windows_x64.exe");
+    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN-%1-win64.exe");
    const QString kInstallerLocalPath = QStandardPaths::writableLocation(QStandardPaths::TempLocation) + "/AmneziaVPN_installer.exe";
-#elif defined(Q_OS_MACOS) && !defined(MACOS_NE)
-    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN_%1_macos_x64.pkg");
+#elif defined(Q_OS_MACOS)
+    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN-%1-Darwin.pkg");
    const QString kInstallerLocalPath = QStandardPaths::writableLocation(QStandardPaths::TempLocation) + "/AmneziaVPN.pkg";
 #elif defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
-    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN_%1_linux_x64.run");
+    const QLatin1String kInstallerRemoteFileNamePattern("AmneziaVPN-%1-Linux.run");
    const QString kInstallerLocalPath = QStandardPaths::writableLocation(QStandardPaths::TempLocation) + "/AmneziaVPN.run";
 #endif
 }
@@ -95,8 +96,7 @@ void UpdateController::fetchGatewayUrl()
    auto gatewayController = QSharedPointer<GatewayController>::create(m_appSettingsRepository->getGatewayEndpoint(),
                                                                       m_appSettingsRepository->isDevGatewayEnv(),
                                                                       7000,
-                                                                       m_appSettingsRepository->isStrictKillSwitchEnabled(),
-                                                                       m_appSettingsRepository);
+                                                                       m_appSettingsRepository->isStrictKillSwitchEnabled());

    QJsonObject apiPayload;
    apiPayload[apiDefs::key::cliVersion] = QString(APP_VERSION);
@@ -106,10 +106,10 @@ void UpdateController::fetchGatewayUrl()
    // Workaround: wait before contacting gateway to avoid rate limit triggered by other requests (news etc.)
    QTimer::singleShot(1000, this, [this, gatewayController, apiPayload]() {
        gatewayController->postAsync(QStringLiteral("%1v1/updater_endpoint"), apiPayload)
-            .then(this, [this, gatewayController](QPair<ErrorCode, QByteArray> result) {
+            .then(this, [this](QPair<ErrorCode, QByteArray> result) {
                auto [err, gatewayResponse] = result;
                if (err != ErrorCode::NoError) {
-                    logger.error() << "Gateway request failed, error code:" << static_cast<int>(err);
+                    logger.error() << errorString(err);
                    finishUpdateCheck();
                    return;
                }
@@ -184,7 +184,7 @@ void UpdateController::setupNetworkErrorHandling(QNetworkReply* reply, const QSt
        logger.error() << QString("Network error occurred while fetching %1: %2 %3")
                          .arg(operation, reply->errorString(), QString::number(error));
    });
-
+    
    QObject::connect(reply, &QNetworkReply::sslErrors, [operation](const QList<QSslError> &errors) {
        QStringList errorStrings;
        for (const QSslError &err : errors) {
@@ -196,13 +196,21 @@ void UpdateController::setupNetworkErrorHandling(QNetworkReply* reply, const QSt

 void UpdateController::handleNetworkError(QNetworkReply* reply, const QString& operation)
 {
-    logger.error() << "Network error code:" << QString::number(static_cast<int>(reply->error()));
-    logger.error() << "HTTP status:" << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    if (reply->error() == QNetworkReply::NetworkError::OperationCanceledError
+        || reply->error() == QNetworkReply::NetworkError::TimeoutError) {
+        logger.error() << errorString(ErrorCode::ApiConfigTimeoutError);
+    } else {
+        QString err = reply->errorString();
+        logger.error() << "Network error code:" << QString::number(static_cast<int>(reply->error()));
+        logger.error() << "Error message:" << err;
+        logger.error() << "HTTP status:" << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+        logger.error() << errorString(ErrorCode::ApiConfigDownloadError);
+    }
 }

 QString UpdateController::composeDownloadUrl() const
 {
-#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS) && !defined(MACOS_NE)
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
    const QString fileName = QString(kInstallerRemoteFileNamePattern).arg(m_version);
    return m_baseUrl + "/" + fileName;
 #else
@@ -212,7 +220,7 @@ QString UpdateController::composeDownloadUrl() const

 void UpdateController::runInstaller()
 {
-#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS) && !defined(MACOS_NE)
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
    if (m_downloadUrl.isEmpty()) {
        logger.error() << "Download URL is empty";
        return;
@@ -244,15 +252,23 @@ void UpdateController::runInstaller()

    #if defined(Q_OS_WINDOWS)
            runWindowsInstaller(kInstallerLocalPath);
-    #elif defined(Q_OS_MACOS) && !defined(MACOS_NE)
+    #elif defined(Q_OS_MACOS)
            runMacInstaller(kInstallerLocalPath);
    #elif defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
            runLinuxInstaller(kInstallerLocalPath);
    #endif
        } else {
-            logger.error() << "Installer download failed, network error:" << static_cast<int>(reply->error())
-                           << reply->errorString();
-            logger.error() << "HTTP status:" << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+            if (reply->error() == QNetworkReply::NetworkError::OperationCanceledError
+                || reply->error() == QNetworkReply::NetworkError::TimeoutError) {
+                logger.error() << errorString(ErrorCode::ApiConfigTimeoutError);
+            } else {
+                QString err = reply->errorString();
+                logger.error() << QString::fromUtf8(reply->readAll());
+                logger.error() << "Network error code:" << QString::number(static_cast<int>(reply->error()));
+                logger.error() << "Error message:" << err;
+                logger.error() << "HTTP status:" << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+                logger.error() << errorString(ErrorCode::ApiConfigDownloadError);
+            }
        }
        reply->deleteLater();
    });
@@ -276,7 +292,7 @@ int UpdateController::runWindowsInstaller(const QString &installerPath)
 }
 #endif

-#if defined(Q_OS_MACOS) && !defined(MACOS_NE)
+#if defined(Q_OS_MACOS)
 int UpdateController::runMacInstaller(const QString &installerPath)
 {
    // Create temporary directory for extraction
--- a/client/core/diagnostics/containerDiagnostics.h
+++ b/client/core/diagnostics/containerDiagnostics.h
@@ -1,16 +0,0 @@
-#ifndef CONTAINERDIAGNOSTICS_H
-#define CONTAINERDIAGNOSTICS_H
-
-namespace amnezia
-{
-    struct ContainerDiagnostics
-    {
-        bool available = false;
-        bool portReachable = false;
-
-        virtual ~ContainerDiagnostics() = default;
-    };
-
-} // namespace amnezia
-
-#endif // CONTAINERDIAGNOSTICS_H
--- a/client/core/diagnostics/mtProxyDiagnostics.h
+++ b/client/core/diagnostics/mtProxyDiagnostics.h
@@ -1,18 +0,0 @@
-#ifndef MTPROXYDIAGNOSTICS_H
-#define MTPROXYDIAGNOSTICS_H
-
-#include "containerDiagnostics.h"
-
-#include <QString>
-
-namespace amnezia {
-    struct MtProxyDiagnostics : ContainerDiagnostics {
-        bool upstreamReachable = false;
-        int clientsConnected = -1;
-        QString lastConfigRefresh;
-        QString statsEndpoint;
-    };
-
-} // namespace amnezia
-
-#endif // MTPROXYDIAGNOSTICS_H
--- a/client/core/diagnostics/telemtDiagnostics.h
+++ b/client/core/diagnostics/telemtDiagnostics.h
@@ -1,20 +0,0 @@
-#ifndef TELEMTDIAGNOSTICS_H
-#define TELEMTDIAGNOSTICS_H
-
-#include "containerDiagnostics.h"
-
-#include <QString>
-
-namespace amnezia
-{
-    struct TelemtDiagnostics : ContainerDiagnostics
-    {
-        bool upstreamReachable = false;
-        int clientsConnected = -1;
-        QString lastConfigRefresh;
-        QString statsEndpoint;
-    };
-
-} // namespace amnezia
-
-#endif // TELEMTDIAGNOSTICS_H
--- a/client/core/installers/installerBase.cpp
+++ b/client/core/installers/installerBase.cpp
@@ -14,8 +14,6 @@
 #include "core/models/protocols/xrayProtocolConfig.h"
 #include "core/models/protocols/sftpProtocolConfig.h"
 #include "core/models/protocols/socks5ProxyProtocolConfig.h"
-#include "core/models/protocols/mtProxyProtocolConfig.h"
-#include "core/models/protocols/telemtProtocolConfig.h"
 #include "core/models/protocols/ikev2ProtocolConfig.h"
 #include "core/models/protocols/torProtocolConfig.h"

@@ -93,18 +91,6 @@ ContainerConfig InstallerBase::createBaseConfig(DockerContainer container, int p
            config.protocolConfig = socks5Config;
            break;
        }
-        case Proto::MtProxy: {
-            MtProxyProtocolConfig mtConfig;
-            mtConfig.port = portStr;
-            config.protocolConfig = mtConfig;
-            break;
-        }
-        case Proto::Telemt: {
-            TelemtProtocolConfig telemtConfig;
-            telemtConfig.port = portStr;
-            config.protocolConfig = telemtConfig;
-            break;
-        }
        case Proto::Ikev2: {
            Ikev2ProtocolConfig ikev2Config;
            config.protocolConfig = ikev2Config;
--- a/client/core/installers/mtProxyInstaller.cpp
+++ b/client/core/installers/mtProxyInstaller.cpp
@@ -1,144 +0,0 @@
-#include "mtProxyInstaller.h"
-
-#include "core/utils/containerEnum.h"
-#include "core/utils/containers/containerUtils.h"
-#include "core/utils/protocolEnum.h"
-#include "core/utils/selfhosted/sshSession.h"
-#include "core/models/containerConfig.h"
-#include "core/models/protocols/mtProxyProtocolConfig.h"
-
-#include <QJsonDocument>
-#include <QJsonObject>
-#include <QJsonParseError>
-#include <QRegularExpression>
-
-#include <QtGlobal>
-
-using namespace amnezia;
-
-namespace {
-    constexpr QLatin1String kMtProxyClientJsonPath("/data/amnezia-mtproxy-client.json");
-    constexpr QLatin1String kMtProxyClientJsonUploadPath("data/amnezia-mtproxy-client.json");
-    constexpr QLatin1String kMtProxySecretPath("/data/secret");
-}
-
-MtProxyInstaller::MtProxyInstaller(QObject *parent)
-        : InstallerBase(parent) {
-}
-
-ErrorCode MtProxyInstaller::extractConfigFromContainer(DockerContainer container, const ServerCredentials &credentials,
-                                                       SshSession *sshSession, ContainerConfig &config) {
-    if (container != DockerContainer::MtProxy || !sshSession) {
-        return ErrorCode::NoError;
-    }
-
-    MtProxyProtocolConfig *mt = config.getMtProxyProtocolConfig();
-    if (!mt) {
-        return ErrorCode::NoError;
-    }
-
-    ErrorCode jsonErr = ErrorCode::NoError;
-    const QByteArray jsonRaw =
-            sshSession->getTextFileFromContainer(container, credentials, QString(kMtProxyClientJsonPath), jsonErr);
-    if (jsonErr == ErrorCode::NoError && !jsonRaw.trimmed().isEmpty()) {
-        QJsonParseError parseError;
-        const QJsonDocument doc = QJsonDocument::fromJson(jsonRaw.trimmed(), &parseError);
-        if (parseError.error == QJsonParseError::NoError && doc.isObject()) {
-            QJsonObject merged = mt->toJson();
-            const QJsonObject snap = doc.object();
-            for (auto it = snap.constBegin(); it != snap.constEnd(); ++it) {
-                merged.insert(it.key(), it.value());
-            }
-            *mt = MtProxyProtocolConfig::fromJson(merged);
-        }
-    }
-
-    ErrorCode secretErr = ErrorCode::NoError;
-    const QByteArray secretRaw =
-            sshSession->getTextFileFromContainer(container, credentials, QString(kMtProxySecretPath), secretErr);
-    const QString sec = QString::fromUtf8(secretRaw).trimmed();
-    if (sec.length() == 32) {
-        static const QRegularExpression hex32(QStringLiteral("^[0-9a-fA-F]{32}$"));
-        if (hex32.match(sec).hasMatch()) {
-            mt->secret = sec;
-        }
-    }
-
-    return ErrorCode::NoError;
-}
-
-ErrorCode MtProxyInstaller::queryDiagnostics(SshSession &sshSession, const ServerCredentials &credentials,
-                                             DockerContainer container, int listenPort,
-                                             MtProxyContainerDiagnostics &out)
-{
-    out = { };
-    if (container == DockerContainer::MtProxy || container == DockerContainer::Telemt) {
-        const QString containerName = ContainerUtils::containerToString(container);
-        const bool isTelemt = container == DockerContainer::Telemt;
-
-        const QString sportFilter = QString::number(listenPort);
-        const QString peersCmd = QStringLiteral("sudo conntrack -L -p tcp --dport ") + sportFilter
-                + QStringLiteral(" 2>/dev/null | grep ESTABLISHED | awk '{for(i=1;i<=NF;i++) if($i ~ /^src=/){print "
-                                 "substr($i,5); break}}'");
-        const QString publicFilter = QStringLiteral(" | grep -vE "
-                                                    "'^(10\\.|127\\.|169\\.254\\.|192\\.168\\.|172\\.(1[6-9]|2[0-9]|3["
-                                                    "01])\\.|::1$|fe80:|f[cd][0-9a-f][0-9a-f]:)'");
-        const QString clientsCmd =
-                QStringLiteral("CLIENTS=$(") + peersCmd + publicFilter + QStringLiteral(" | sort -u | grep -c .); ");
-        const QString confFile =
-                isTelemt ? QStringLiteral("/data/config.toml") : QStringLiteral("/data/proxy-multi.conf");
-        const QString statsUrl = QString();
-
-        const QString script = QStringLiteral("CN=") + containerName + QStringLiteral("; ")
-                + QStringLiteral("PORT_OK=$(sudo ss -tlnp 2>/dev/null | grep -q :") + QString::number(listenPort)
-                + QStringLiteral(" && echo yes || echo no); ")
-                + QStringLiteral("TG_OK=$(curl -s --max-time 5 -o /dev/null -w '%{http_code}' "
-                                 "https://core.telegram.org/getProxySecret 2>/dev/null | grep -q '200' && echo yes || "
-                                 "echo no); ")
-                + clientsCmd + QStringLiteral("CONF_TIME=$(sudo docker exec \"$CN\" sh -c 'stat -c \"%y\" ") + confFile
-                + QStringLiteral(" 2>/dev/null | cut -d. -f1' 2>/dev/null || echo unknown); ")
-                + QStringLiteral("echo \"PORT_OK=${PORT_OK}\"; ") + QStringLiteral("echo \"TG_OK=${TG_OK}\"; ")
-                + QStringLiteral("echo \"CLIENTS=${CLIENTS:-0}\"; ") + QStringLiteral("echo \"CONF_TIME=${CONF_TIME}\"; ")
-                + QStringLiteral("echo \"STATS=") + statsUrl + QStringLiteral("\";");
-
-        QString stdOut;
-        auto cbReadStdOut = [&](const QString &data, libssh::Client &) {
-            stdOut += data;
-            return ErrorCode::NoError;
-        };
-        const ErrorCode errorCode = sshSession.runScript(credentials, script, cbReadStdOut);
-        if (errorCode != ErrorCode::NoError) {
-            return errorCode;
-        }
-        for (const QString &line : stdOut.split('\n', Qt::SkipEmptyParts)) {
-            if (line.startsWith(QLatin1String("PORT_OK="))) {
-                out.portReachable = line.mid(8).trimmed() == QLatin1String("yes");
-            } else if (line.startsWith(QLatin1String("TG_OK="))) {
-                out.upstreamReachable = line.mid(6).trimmed() == QLatin1String("yes");
-            } else if (line.startsWith(QLatin1String("CLIENTS="))) {
-                out.clientsConnected = line.mid(8).trimmed().toInt();
-            } else if (line.startsWith(QLatin1String("CONF_TIME="))) {
-                out.lastConfigRefresh = line.mid(10).trimmed();
-            } else if (line.startsWith(QLatin1String("STATS="))) {
-                out.statsEndpoint = line.mid(6).trimmed();
-            }
-        }
-        return ErrorCode::NoError;
-    }
-
-    return ErrorCode::InternalError;
-}
-
-void MtProxyInstaller::uploadClientSettingsSnapshot(SshSession &sshSession, const ServerCredentials &credentials,
-                                                    DockerContainer container, const ContainerConfig &config) {
-    const MtProxyProtocolConfig *mt = config.getMtProxyProtocolConfig();
-    if (!mt) {
-        return;
-    }
-    const QByteArray payload = QJsonDocument(mt->toJson()).toJson(QJsonDocument::Compact);
-    const ErrorCode err = sshSession.uploadTextFileToContainer(container, credentials, QString::fromUtf8(payload),
-                                                               QString(kMtProxyClientJsonUploadPath));
-    if (err != ErrorCode::NoError) {
-        qWarning() << "MtProxyInstaller::uploadClientSettingsSnapshot failed" << err;
-    }
-}
--- a/client/core/installers/mtProxyInstaller.h
+++ b/client/core/installers/mtProxyInstaller.h
@@ -1,34 +0,0 @@
-#ifndef MTPROXYINSTALLER_H
-#define MTPROXYINSTALLER_H
-
-#include "installerBase.h"
-
-#include <QString>
-
-struct MtProxyContainerDiagnostics {
-    bool portReachable = false;
-    bool upstreamReachable = false;
-    int clientsConnected = -1;
-    QString lastConfigRefresh;
-    QString statsEndpoint;
-};
-
-class MtProxyInstaller : public InstallerBase {
-Q_OBJECT
-public:
-    explicit MtProxyInstaller(QObject *parent = nullptr);
-
-    amnezia::ErrorCode
-    extractConfigFromContainer(amnezia::DockerContainer container, const amnezia::ServerCredentials &credentials,
-                               SshSession *sshSession, amnezia::ContainerConfig &config) override;
-
-    static void uploadClientSettingsSnapshot(SshSession &sshSession, const amnezia::ServerCredentials &credentials,
-                                             amnezia::DockerContainer container,
-                                             const amnezia::ContainerConfig &config);
-
-    static amnezia::ErrorCode queryDiagnostics(SshSession &sshSession, const amnezia::ServerCredentials &credentials,
-                                               amnezia::DockerContainer container, int listenPort,
-                                               MtProxyContainerDiagnostics &out);
-};
-
-#endif // MTPROXYINSTALLER_H
--- a/client/core/installers/socks5Installer.cpp
+++ b/client/core/installers/socks5Installer.cpp
@@ -1,17 +1,15 @@
 #include "socks5Installer.h"

-#include "core/models/protocols/socks5ProxyProtocolConfig.h"
 #include "core/utils/containerEnum.h"
 #include "core/utils/containers/containerUtils.h"
 #include "core/utils/protocolEnum.h"
+#include "core/utils/protocolEnum.h"
 #include "core/protocols/protocolUtils.h"
 #include "core/utils/constants/configKeys.h"
 #include "core/utils/constants/protocolConstants.h"
 #include "core/utils/selfhosted/sshSession.h"
 #include "core/utils/utilities.h"

-#include <QRegularExpression>
-
 using namespace amnezia;
 using namespace ProtocolUtils;

@@ -35,29 +33,10 @@ ContainerConfig Socks5Installer::generateConfig(DockerContainer container, int p
 ErrorCode Socks5Installer::extractConfigFromContainer(DockerContainer container, const ServerCredentials &credentials,
                                                       SshSession* sshSession, ContainerConfig &config)
 {
-    if (container != DockerContainer::Socks5Proxy || !sshSession) {
-        return ErrorCode::NoError;
-    }
-
-    Socks5ProxyProtocolConfig *socks5Config = config.getSocks5ProxyProtocolConfig();
-    if (!socks5Config) {
-        return ErrorCode::NoError;
-    }
-
-    ErrorCode readError = ErrorCode::NoError;
-    const QByteArray configRaw = sshSession->getTextFileFromContainer(
-            container, credentials, QString::fromUtf8(protocols::socks5Proxy::proxyConfigPath), readError);
-    if (readError != ErrorCode::NoError || configRaw.trimmed().isEmpty()) {
-        return ErrorCode::NoError;
-    }
-
-    const QString proxyConfig = QString::fromUtf8(configRaw);
-    static const QRegularExpression usernameAndPasswordRegExp(QStringLiteral("users (\\w+):CL:(\\w+)"));
-    const QRegularExpressionMatch usernameAndPasswordMatch = usernameAndPasswordRegExp.match(proxyConfig);
-    if (usernameAndPasswordMatch.hasMatch()) {
-        socks5Config->userName = usernameAndPasswordMatch.captured(1);
-        socks5Config->password = usernameAndPasswordMatch.captured(2);
-    }
-
+    Q_UNUSED(container);
+    Q_UNUSED(credentials);
+    Q_UNUSED(sshSession);
+    Q_UNUSED(config);
    return ErrorCode::NoError;
 }
+
--- a/client/core/installers/telemtInstaller.cpp
+++ b/client/core/installers/telemtInstaller.cpp
@@ -1,79 +0,0 @@
-#include "telemtInstaller.h"
-
-#include "core/utils/containerEnum.h"
-#include "core/utils/containers/containerUtils.h"
-#include "core/utils/selfhosted/sshSession.h"
-#include "core/models/containerConfig.h"
-#include "core/models/protocols/telemtProtocolConfig.h"
-
-#include <QJsonDocument>
-#include <QJsonObject>
-#include <QJsonParseError>
-#include <QRegularExpression>
-
-#include <QtGlobal>
-
-using namespace amnezia;
-
-namespace {
-    constexpr QLatin1String kTelemtClientJsonPath("/data/amnezia-telemt-client.json");
-    constexpr QLatin1String kTelemtClientJsonUploadPath("data/amnezia-telemt-client.json");
-    constexpr QLatin1String kTelemtSecretPath("/data/secret");
-}
-
-TelemtInstaller::TelemtInstaller(QObject *parent) : InstallerBase(parent) {}
-
-ErrorCode TelemtInstaller::extractConfigFromContainer(DockerContainer container, const ServerCredentials &credentials,
-                                                      SshSession *sshSession, ContainerConfig &config) {
-    if (container != DockerContainer::Telemt || !sshSession) {
-        return ErrorCode::NoError;
-    }
-
-    TelemtProtocolConfig *tc = config.getTelemtProtocolConfig();
-    if (!tc) {
-        return ErrorCode::NoError;
-    }
-
-    ErrorCode jsonErr = ErrorCode::NoError;
-    const QByteArray jsonRaw =
-            sshSession->getTextFileFromContainer(container, credentials, QString(kTelemtClientJsonPath), jsonErr);
-    if (jsonErr == ErrorCode::NoError && !jsonRaw.trimmed().isEmpty()) {
-        QJsonParseError parseError;
-        const QJsonDocument doc = QJsonDocument::fromJson(jsonRaw.trimmed(), &parseError);
-        if (parseError.error == QJsonParseError::NoError && doc.isObject()) {
-            QJsonObject merged = tc->toJson();
-            const QJsonObject snap = doc.object();
-            for (auto it = snap.constBegin(); it != snap.constEnd(); ++it) {
-                merged.insert(it.key(), it.value());
-            }
-            *tc = TelemtProtocolConfig::fromJson(merged);
-        }
-    }
-
-    ErrorCode secretErr = ErrorCode::NoError;
-    const QByteArray secretRaw =
-            sshSession->getTextFileFromContainer(container, credentials, QString(kTelemtSecretPath), secretErr);
-    const QString sec = QString::fromUtf8(secretRaw).trimmed();
-    if (sec.length() == 32) {
-        static const QRegularExpression hex32(QStringLiteral("^[0-9a-fA-F]{32}$"));
-        if (hex32.match(sec).hasMatch()) {
-            tc->secret = sec;
-        }
-    }
-
-    return ErrorCode::NoError;
-}
-
-void TelemtInstaller::uploadClientSettingsSnapshot(SshSession &sshSession, const ServerCredentials &credentials,
-                                                   DockerContainer container, const ContainerConfig &config) {
-    const TelemtProtocolConfig *tc = config.getTelemtProtocolConfig();
-    if (!tc) {
-        return;
-    }
-    const QByteArray payload = QJsonDocument(tc->toJson()).toJson(QJsonDocument::Compact);
-    const ErrorCode err = sshSession.uploadTextFileToContainer(container, credentials, QString::fromUtf8(payload),
-                                                               QString(kTelemtClientJsonUploadPath));
-    if (err != ErrorCode::NoError) {
-        qWarning() << "TelemtInstaller::uploadClientSettingsSnapshot failed" << err;
-    }
-}
--- a/client/core/installers/telemtInstaller.h
+++ b/client/core/installers/telemtInstaller.h
@@ -1,20 +0,0 @@
-#ifndef TELEMTINSTALLER_H
-#define TELEMTINSTALLER_H
-
-#include "installerBase.h"
-
-class TelemtInstaller : public InstallerBase {
-Q_OBJECT
-public:
-    explicit TelemtInstaller(QObject *parent = nullptr);
-
-    amnezia::ErrorCode
-    extractConfigFromContainer(amnezia::DockerContainer container, const amnezia::ServerCredentials &credentials,
-                               SshSession *sshSession, amnezia::ContainerConfig &config) override;
-
-    static void uploadClientSettingsSnapshot(SshSession &sshSession, const amnezia::ServerCredentials &credentials,
-                                             amnezia::DockerContainer container,
-                                             const amnezia::ContainerConfig &config);
-};
-
-#endif // TELEMTINSTALLER_H
--- a/client/core/installers/xrayInstaller.cpp
+++ b/client/core/installers/xrayInstaller.cpp
@@ -14,18 +14,8 @@
 #include "core/models/protocols/xrayProtocolConfig.h"
 #include "logger.h"

-namespace
-{
+namespace {
    Logger logger("XrayInstaller");
-
-    // Xray expects uTLS preset names (chrome, firefox, …). Old Amnezia/server templates used "Mozilla/5.0".
-    QString normalizeXrayFingerprint(const QString &fp)
-    {
-        if (fp.isEmpty() || fp.contains(QLatin1String("Mozilla/5.0"), Qt::CaseInsensitive)) {
-            return QString::fromLatin1(protocols::xray::defaultFingerprint);
-        }
-        return fp;
-    }
 }

 using namespace amnezia;
@@ -73,251 +63,18 @@ ErrorCode XrayInstaller::extractConfigFromContainer(DockerContainer container, c
    }

    QJsonObject streamSettings = inbound[protocols::xray::streamSettings].toObject();
-    auto *xrayConfig = config.getXrayProtocolConfig();
-    if (!xrayConfig) {
-        logger.error() << "No XrayProtocolConfig in ContainerConfig";
+    QJsonObject realitySettings = streamSettings[protocols::xray::realitySettings].toObject();
+    if (!realitySettings.contains(protocols::xray::serverNames)) {
+        logger.error() << "Settings missing 'serverNames' field";
        return ErrorCode::InternalError;
    }

-    XrayServerConfig &srv = xrayConfig->serverConfig;
+    QString siteName = realitySettings[protocols::xray::serverNames][0].toString();

-    // ── Port ─────────────────────────────────────────────────────────
-    if (inbound.contains(protocols::xray::port)) {
-        srv.port = QString::number(inbound[protocols::xray::port].toInt());
+    if (auto* xrayConfig = config.getXrayProtocolConfig()) {
+        xrayConfig->serverConfig.site = siteName;
    }
-
-    // ── Network (transport) ───────────────────────────────────────────
-    QString networkVal = streamSettings.value(protocols::xray::network).toString("tcp");
-    if (networkVal == "xhttp") {
-        srv.transport = "xhttp";
-    } else if (networkVal == "kcp") {
-        srv.transport = "mkcp";
-    } else {
-        srv.transport = "raw";
-    }
-
-    // ── Security ──────────────────────────────────────────────────────
-    srv.security = streamSettings.value(protocols::xray::security).toString("reality");
-
-    // ── Reality settings ──────────────────────────────────────────────
-    if (srv.security == "reality") {
-        QJsonObject rs = streamSettings.value(protocols::xray::realitySettings).toObject();
-
-        // serverNames array → site + sni
-        if (rs.contains(protocols::xray::serverNames)) {
-            QString sniVal = rs[protocols::xray::serverNames].toArray().first().toString();
-            srv.sni = sniVal;
-            srv.site = sniVal;
-        } else if (rs.contains(protocols::xray::serverName)) {
-            srv.sni = rs[protocols::xray::serverName].toString();
-            srv.site = srv.sni;
-        }
-
-        srv.fingerprint = normalizeXrayFingerprint(rs.value(protocols::xray::fingerprint).toString());
-    }
-
-    // ── TLS settings ──────────────────────────────────────────────────
-    if (srv.security == "tls") {
-        QJsonObject tls = streamSettings.value("tlsSettings").toObject();
-        srv.sni = tls.value(protocols::xray::serverName).toString();
-        srv.fingerprint = normalizeXrayFingerprint(tls.value(protocols::xray::fingerprint).toString());
-
-        QJsonArray alpnArr = tls.value("alpn").toArray();
-        QStringList alpnList;
-        for (const QJsonValue &v : alpnArr) {
-            alpnList << v.toString();
-        }
-        srv.alpn = alpnList.join(",");
-    }
-
-    // ── Flow (from users array) ───────────────────────────────────────
-    if (inbound.contains(protocols::xray::settings)) {
-        QJsonObject s = inbound[protocols::xray::settings].toObject();
-        QJsonArray clientsArr = s.value(protocols::xray::clients).toArray();
-        if (!clientsArr.isEmpty()) {
-            srv.flow = clientsArr[0].toObject().value(protocols::xray::flow).toString();
-        }
-    }
-
-    // ── XHTTP settings (Xray-core SplitHTTPConfig + legacy Amnezia keys) ──
-    if (srv.transport == "xhttp") {
-        QJsonObject xhttpObj = streamSettings.value("xhttpSettings").toObject();
-        {
-            const QString m = xhttpObj.value("mode").toString();
-            if (m.isEmpty() || m == QLatin1String("auto"))
-                srv.xhttp.mode = QStringLiteral("Auto");
-            else if (m == QLatin1String("packet-up"))
-                srv.xhttp.mode = QStringLiteral("Packet-up");
-            else if (m == QLatin1String("stream-up"))
-                srv.xhttp.mode = QStringLiteral("Stream-up");
-            else if (m == QLatin1String("stream-one"))
-                srv.xhttp.mode = QStringLiteral("Stream-one");
-            else
-                srv.xhttp.mode = m;
-        }
-
-        srv.xhttp.host = xhttpObj.value("host").toString();
-        srv.xhttp.path = xhttpObj.value("path").toString();
-
-        {
-            const QJsonObject hdrs = xhttpObj.value("headers").toObject();
-            if (hdrs.contains(QLatin1String("Host")) || !hdrs.isEmpty())
-                srv.xhttp.headersTemplate = QStringLiteral("HTTP");
-        }
-
-        if (xhttpObj.contains(QLatin1String("uplinkHTTPMethod")))
-            srv.xhttp.uplinkMethod = xhttpObj.value("uplinkHTTPMethod").toString();
-        else
-            srv.xhttp.uplinkMethod = xhttpObj.value("method").toString();
-
-        srv.xhttp.disableGrpc = xhttpObj.value("noGRPCHeader").toBool(true);
-        srv.xhttp.disableSse = xhttpObj.value("noSSEHeader").toBool(true);
-
-        auto sessionSeqUi = [](const QString &core) -> QString {
-            if (core.isEmpty() || core == QLatin1String("path"))
-                return QStringLiteral("Path");
-            if (core == QLatin1String("cookie"))
-                return QStringLiteral("Cookie");
-            if (core == QLatin1String("header"))
-                return QStringLiteral("Header");
-            if (core == QLatin1String("query"))
-                return QStringLiteral("Query");
-            return core;
-        };
-        QString sess = xhttpObj.value("sessionPlacement").toString();
-        if (sess.isEmpty())
-            sess = xhttpObj.value("scSessionPlacement").toString();
-        srv.xhttp.sessionPlacement = sessionSeqUi(sess);
-
-        QString seq = xhttpObj.value("seqPlacement").toString();
-        if (seq.isEmpty())
-            seq = xhttpObj.value("scSeqPlacement").toString();
-        srv.xhttp.seqPlacement = sessionSeqUi(seq);
-
-        auto uplinkDataUi = [](const QString &core) -> QString {
-            if (core.isEmpty() || core == QLatin1String("body"))
-                return QStringLiteral("Body");
-            if (core == QLatin1String("auto"))
-                return QStringLiteral("Auto");
-            if (core == QLatin1String("header"))
-                return QStringLiteral("Header");
-            if (core == QLatin1String("cookie"))
-                return QStringLiteral("Cookie");
-            return core;
-        };
-        QString udata = xhttpObj.value("uplinkDataPlacement").toString();
-        if (udata.isEmpty())
-            udata = xhttpObj.value("scUplinkDataPlacement").toString();
-        srv.xhttp.uplinkDataPlacement = uplinkDataUi(udata);
-
-        srv.xhttp.sessionKey = xhttpObj.value("sessionKey").toString();
-        srv.xhttp.seqKey = xhttpObj.value("seqKey").toString();
-        srv.xhttp.uplinkDataKey = xhttpObj.value("uplinkDataKey").toString();
-
-        if (xhttpObj.contains(QLatin1String("uplinkChunkSize"))) {
-            QJsonObject uc = xhttpObj.value("uplinkChunkSize").toObject();
-            if (!uc.isEmpty())
-                srv.xhttp.uplinkChunkSize = QString::number(uc.value("from").toInt());
-        } else if (xhttpObj.contains(QLatin1String("xhttpUplinkChunkSize"))) {
-            srv.xhttp.uplinkChunkSize = QString::number(xhttpObj.value("xhttpUplinkChunkSize").toInt());
-        }
-        if (xhttpObj.contains(QLatin1String("scMaxBufferedPosts"))) {
-            srv.xhttp.scMaxBufferedPosts = QString::number(xhttpObj.value("scMaxBufferedPosts").toVariant().toLongLong());
-        }
-
-        auto readRange = [&](const char *key, QString &minOut, QString &maxOut) {
-            QJsonObject r = xhttpObj.value(QLatin1String(key)).toObject();
-            if (!r.isEmpty()) {
-                minOut = QString::number(r.value("from").toInt());
-                maxOut = QString::number(r.value("to").toInt());
-            }
-        };
-        readRange("scMaxEachPostBytes", srv.xhttp.scMaxEachPostBytesMin, srv.xhttp.scMaxEachPostBytesMax);
-        readRange("scMinPostsIntervalMs", srv.xhttp.scMinPostsIntervalMsMin, srv.xhttp.scMinPostsIntervalMsMax);
-        readRange("scStreamUpServerSecs", srv.xhttp.scStreamUpServerSecsMin, srv.xhttp.scStreamUpServerSecsMax);
-
-        auto loadPaddingFromObject = [&](const QJsonObject &pad) {
-            if (pad.contains(QLatin1String("xPaddingObfsMode")))
-                srv.xhttp.xPadding.obfsMode = pad.value("xPaddingObfsMode").toBool(true);
-            srv.xhttp.xPadding.key = pad.value("xPaddingKey").toString();
-            srv.xhttp.xPadding.header = pad.value("xPaddingHeader").toString();
-            srv.xhttp.xPadding.placement = pad.value("xPaddingPlacement").toString();
-            srv.xhttp.xPadding.method = pad.value("xPaddingMethod").toString();
-            QJsonObject bytesRange = pad.value("xPaddingBytes").toObject();
-            if (!bytesRange.isEmpty()) {
-                srv.xhttp.xPadding.bytesMin = QString::number(bytesRange.value("from").toInt());
-                srv.xhttp.xPadding.bytesMax = QString::number(bytesRange.value("to").toInt());
-            }
-            QString pl = srv.xhttp.xPadding.placement.toLower();
-            if (pl == QLatin1String("cookie"))
-                srv.xhttp.xPadding.placement = QStringLiteral("Cookie");
-            else if (pl == QLatin1String("header"))
-                srv.xhttp.xPadding.placement = QStringLiteral("Header");
-            else if (pl == QLatin1String("query"))
-                srv.xhttp.xPadding.placement = QStringLiteral("Query");
-            else if (pl == QLatin1String("queryinheader"))
-                srv.xhttp.xPadding.placement = QStringLiteral("Query in header");
-            QString met = srv.xhttp.xPadding.method.toLower();
-            if (met == QLatin1String("repeat-x"))
-                srv.xhttp.xPadding.method = QStringLiteral("Repeat-x");
-            else if (met == QLatin1String("tokenish"))
-                srv.xhttp.xPadding.method = QStringLiteral("Tokenish");
-        };
-        if (xhttpObj.contains(QLatin1String("xPaddingObfsMode")) || xhttpObj.contains(QLatin1String("xPaddingKey"))
-            || !xhttpObj.value("xPaddingBytes").toObject().isEmpty()) {
-            loadPaddingFromObject(xhttpObj);
-        } else if (xhttpObj.contains(QLatin1String("xPadding")) && xhttpObj.value("xPadding").isObject()) {
-            const QJsonObject nested = xhttpObj.value("xPadding").toObject();
-            if (!nested.isEmpty()) {
-                loadPaddingFromObject(nested);
-                if (!nested.contains(QLatin1String("xPaddingObfsMode")))
-                    srv.xhttp.xPadding.obfsMode = true;
-            }
-        }
-
-        if (xhttpObj.contains(QLatin1String("xmux"))) {
-            QJsonObject mux = xhttpObj.value("xmux").toObject();
-            srv.xhttp.xmux.enabled = true;
-
-            auto readMuxRange = [&](const char *key, QString &minOut, QString &maxOut) {
-                QJsonObject r = mux.value(QLatin1String(key)).toObject();
-                if (!r.isEmpty()) {
-                    minOut = QString::number(r.value("from").toInt());
-                    maxOut = QString::number(r.value("to").toInt());
-                }
-            };
-            readMuxRange("maxConcurrency", srv.xhttp.xmux.maxConcurrencyMin, srv.xhttp.xmux.maxConcurrencyMax);
-            readMuxRange("maxConnections", srv.xhttp.xmux.maxConnectionsMin, srv.xhttp.xmux.maxConnectionsMax);
-            readMuxRange("cMaxReuseTimes", srv.xhttp.xmux.cMaxReuseTimesMin, srv.xhttp.xmux.cMaxReuseTimesMax);
-            readMuxRange("hMaxRequestTimes", srv.xhttp.xmux.hMaxRequestTimesMin, srv.xhttp.xmux.hMaxRequestTimesMax);
-            readMuxRange("hMaxReusableSecs", srv.xhttp.xmux.hMaxReusableSecsMin, srv.xhttp.xmux.hMaxReusableSecsMax);
-
-            if (mux.contains(QLatin1String("hKeepAlivePeriod")))
-                srv.xhttp.xmux.hKeepAlivePeriod = QString::number(mux.value("hKeepAlivePeriod").toVariant().toLongLong());
-        }
-    }
-
-    // ── mKCP settings ─────────────────────────────────────────────────
-    if (srv.transport == "mkcp") {
-        QJsonObject kcp = streamSettings.value("kcpSettings").toObject();
-        if (kcp.contains("tti")) {
-            srv.mkcp.tti = QString::number(kcp["tti"].toInt());
-        }
-        if (kcp.contains("uplinkCapacity")) {
-            srv.mkcp.uplinkCapacity = QString::number(kcp["uplinkCapacity"].toInt());
-        }
-        if (kcp.contains("downlinkCapacity")) {
-            srv.mkcp.downlinkCapacity = QString::number(kcp["downlinkCapacity"].toInt());
-        }
-        if (kcp.contains("readBufferSize")) {
-            srv.mkcp.readBufferSize = QString::number(kcp["readBufferSize"].toInt());
-        }
-        if (kcp.contains("writeBufferSize")) {
-            srv.mkcp.writeBufferSize = QString::number(kcp["writeBufferSize"].toInt());
-        }
-        srv.mkcp.congestion = kcp.value("congestion").toBool(true);
-    }
-
+    
    return ErrorCode::NoError;
 }

--- a/client/core/models/api/apiConfig.cpp
+++ b/client/core/models/api/apiConfig.cpp
@@ -144,6 +144,10 @@ QJsonObject ApiConfig::toJson() const
        obj[apiDefs::key::availableCountries] = availableCountries;
    }
    
+    if (!supportedProtocols.isEmpty()) {
+        obj[apiDefs::key::supportedProtocols] = supportedProtocols;
+    }
+    
    QJsonObject serviceInfoObj = serviceInfo.toJson();
    if (!serviceInfoObj.isEmpty()) {
        obj[apiDefs::key::serviceInfo] = serviceInfoObj;
@@ -194,6 +198,7 @@ ApiConfig ApiConfig::fromJson(const QJsonObject& json)
    config.issuedConfigs = json.value(apiDefs::key::issuedConfigs).toInt(0);
    
    config.availableCountries = json.value(apiDefs::key::availableCountries).toArray();
+    config.supportedProtocols = json.value(apiDefs::key::supportedProtocols).toArray();
    
    QJsonObject serviceInfoObj = json.value(apiDefs::key::serviceInfo).toObject();
    if (!serviceInfoObj.isEmpty()) {
--- a/client/core/models/api/apiConfig.h
+++ b/client/core/models/api/apiConfig.h
@@ -34,6 +34,7 @@ struct ApiConfig
    int maxDeviceCount;
    int issuedConfigs;
    QJsonArray availableCountries;
+    QJsonArray supportedProtocols;
    
    struct ServiceInfo {
        bool isAdVisible = false;
--- a/client/core/models/api/apiV2ServerConfig.cpp
+++ b/client/core/models/api/apiV2ServerConfig.cpp
@@ -13,7 +13,6 @@
 #include "core/utils/api/apiUtils.h"
 #include "core/models/api/apiConfig.h"
 #include "core/models/api/authData.h"
-#include "core/utils/networkUtilities.h"

 namespace amnezia
 {
@@ -68,20 +67,6 @@ ContainerConfig ApiV2ServerConfig::containerConfig(DockerContainer container) co
    return containers.value(container);
 }

-QPair<QString, QString> ApiV2ServerConfig::getDnsPair(const QString &primaryDns, const QString &secondaryDns) const
-{
-    QString d1 = dns1;
-    QString d2 = dns2;
-
-    if (d1.isEmpty() || !NetworkUtilities::checkIPv4Format(d1)) {
-        d1 = primaryDns;
-    }
-    if (d2.isEmpty() || !NetworkUtilities::checkIPv4Format(d2)) {
-        d2 = secondaryDns;
-    }
-    return { d1, d2 };
-}
-
 QJsonObject ApiV2ServerConfig::toJson() const
 {
    QJsonObject obj;
@@ -95,6 +80,9 @@ QJsonObject ApiV2ServerConfig::toJson() const
    if (!description.isEmpty()) {
        obj[configKey::description] = description;
    }
+    if (!displayName.isEmpty()) {
+        obj[configKey::displayName] = displayName;
+    }
    
    obj[configKey::configVersion] = configVersion;
    
@@ -121,11 +109,7 @@ QJsonObject ApiV2ServerConfig::toJson() const
    if (!dns2.isEmpty()) {
        obj[configKey::dns2] = dns2;
    }
-
-    if (!sendPayload.isEmpty()) {
-        obj[configKey::sendPayload] = sendPayload;
-    }
-
+    
    if (crc > 0) {
        obj[configKey::crc] = crc;
    }
@@ -150,6 +134,7 @@ ApiV2ServerConfig ApiV2ServerConfig::fromJson(const QJsonObject& json)
    config.name = json.value(configKey::name).toString();
    config.nameOverriddenByUser = json.value(configKey::nameOverriddenByUser).toBool(false);
    config.description = json.value(configKey::description).toString();
+    config.displayName = json.value(configKey::displayName).toString();
    config.configVersion = json.value(configKey::configVersion).toInt(2);
    config.hostName = json.value(configKey::hostName).toString();
    
@@ -169,7 +154,6 @@ ApiV2ServerConfig ApiV2ServerConfig::fromJson(const QJsonObject& json)
    
    config.dns1 = json.value(configKey::dns1).toString();
    config.dns2 = json.value(configKey::dns2).toString();
-    config.sendPayload = json.value(configKey::sendPayload).toArray();
    
    config.crc = json.value(configKey::crc).toInt(0);
    
--- a/client/core/models/api/apiV2ServerConfig.h
+++ b/client/core/models/api/apiV2ServerConfig.h
@@ -1,10 +1,8 @@
 #ifndef APIV2SERVERCONFIG_H
 #define APIV2SERVERCONFIG_H

-#include <QJsonArray>
 #include <QJsonObject>
 #include <QMap>
-#include <QPair>

 #include "core/utils/containerEnum.h"
 #include "core/utils/containers/containerUtils.h"
@@ -29,7 +27,6 @@ struct ApiV2ServerConfig {
    DockerContainer defaultContainer;
    QString dns1;
    QString dns2;
-    QJsonArray sendPayload;
    
    QString name;
    bool nameOverriddenByUser = false;
@@ -46,9 +43,6 @@ struct ApiV2ServerConfig {
    bool isExternalPremium() const;
    bool hasContainers() const;
    ContainerConfig containerConfig(DockerContainer container) const;
-
-    QPair<QString, QString> getDnsPair(const QString &primaryDns, const QString &secondaryDns) const;
-
    QJsonObject toJson() const;
    static ApiV2ServerConfig fromJson(const QJsonObject& json);
 };
--- a/client/core/models/api/legacyApiServerConfig.cpp
+++ b/client/core/models/api/legacyApiServerConfig.cpp
@@ -23,7 +23,9 @@ LegacyApiServerConfig LegacyApiServerConfig::fromJson(const QJsonObject &json)
 {
    LegacyApiServerConfig config;

+    config.name = json.value(configKey::name).toString();
    config.description = json.value(configKey::description).toString();
+    config.displayName = json.value(configKey::displayName).toString();
    config.hostName = json.value(configKey::hostName).toString();

    config.crc = json.value(configKey::crc).toInt(0);
--- a/client/core/models/containerConfig.cpp
+++ b/client/core/models/containerConfig.cpp
@@ -113,26 +113,6 @@ const Socks5ProxyProtocolConfig* ContainerConfig::getSocks5ProxyProtocolConfig()
    return protocolConfig.as<Socks5ProxyProtocolConfig>();
 }

-MtProxyProtocolConfig* ContainerConfig::getMtProxyProtocolConfig()
-{
-    return protocolConfig.as<MtProxyProtocolConfig>();
-}
-
-const MtProxyProtocolConfig* ContainerConfig::getMtProxyProtocolConfig() const
-{
-    return protocolConfig.as<MtProxyProtocolConfig>();
-}
-
-TelemtProtocolConfig* ContainerConfig::getTelemtProtocolConfig()
-{
-    return protocolConfig.as<TelemtProtocolConfig>();
-}
-
-const TelemtProtocolConfig* ContainerConfig::getTelemtProtocolConfig() const
-{
-    return protocolConfig.as<TelemtProtocolConfig>();
-}
-
 Ikev2ProtocolConfig* ContainerConfig::getIkev2ProtocolConfig()
 {
    return protocolConfig.as<Ikev2ProtocolConfig>();
--- a/client/core/models/containerConfig.h
+++ b/client/core/models/containerConfig.h
@@ -57,12 +57,6 @@ struct ContainerConfig {
    Socks5ProxyProtocolConfig* getSocks5ProxyProtocolConfig();
    const Socks5ProxyProtocolConfig* getSocks5ProxyProtocolConfig() const;
    
-    MtProxyProtocolConfig* getMtProxyProtocolConfig();
-    const MtProxyProtocolConfig* getMtProxyProtocolConfig() const;
-
-    TelemtProtocolConfig* getTelemtProtocolConfig();
-    const TelemtProtocolConfig* getTelemtProtocolConfig() const;
-
    Ikev2ProtocolConfig* getIkev2ProtocolConfig();
    const Ikev2ProtocolConfig* getIkev2ProtocolConfig() const;
    
--- a/client/core/models/protocolConfig.cpp
+++ b/client/core/models/protocolConfig.cpp
@@ -9,8 +9,6 @@
 #include "core/utils/protocolEnum.h"
 #include "core/models/protocols/ikev2ProtocolConfig.h"
 #include "core/models/protocols/dnsProtocolConfig.h"
-#include "core/models/protocols/mtProxyProtocolConfig.h"
-#include "core/models/protocols/telemtProtocolConfig.h"

 namespace amnezia
 {
@@ -40,10 +38,6 @@ Proto ProtocolConfig::type() const
            return Proto::TorWebSite;
        } else if constexpr (std::is_same_v<T, DnsProtocolConfig>) {
            return Proto::Dns;
-        } else if constexpr (std::is_same_v<T, MtProxyProtocolConfig>) {
-            return Proto::MtProxy;
-        } else if constexpr (std::is_same_v<T, TelemtProtocolConfig>) {
-            return Proto::Telemt;
        }
        return Proto::Unknown;
    }, data);
@@ -71,10 +65,6 @@ QString ProtocolConfig::port() const
            return QString();
        } else if constexpr (std::is_same_v<T, DnsProtocolConfig>) {
            return QString();
-        } else if constexpr (std::is_same_v<T, MtProxyProtocolConfig>) {
-            return arg.port.isEmpty() ? QString(protocols::mtProxy::defaultPort) : arg.port;
-        } else if constexpr (std::is_same_v<T, TelemtProtocolConfig>) {
-            return arg.port.isEmpty() ? QString(protocols::telemt::defaultPort) : arg.port;
        }
        return QString();
    }, data);
@@ -98,10 +88,6 @@ QString ProtocolConfig::transportProto() const
            return QString();
        } else if constexpr (std::is_same_v<T, DnsProtocolConfig>) {
            return QString();
-        } else if constexpr (std::is_same_v<T, MtProxyProtocolConfig>) {
-            return QStringLiteral("tcp");
-        } else if constexpr (std::is_same_v<T, TelemtProtocolConfig>) {
-            return QStringLiteral("tcp");
        }
        return QString();
    }, data);
@@ -313,10 +299,6 @@ ProtocolConfig ProtocolConfig::fromJson(const QJsonObject& json, Proto type)
        return ProtocolConfig{TorProtocolConfig::fromJson(json)};
    case Proto::Dns:
        return ProtocolConfig{DnsProtocolConfig::fromJson(json)};
-    case Proto::MtProxy:
-        return ProtocolConfig{MtProxyProtocolConfig::fromJson(json)};
-    case Proto::Telemt:
-        return ProtocolConfig{TelemtProtocolConfig::fromJson(json)};
    default:
        return ProtocolConfig{AwgProtocolConfig{}};
    }
--- a/client/core/models/protocolConfig.h
+++ b/client/core/models/protocolConfig.h
@@ -22,8 +22,6 @@
 #include "core/models/protocols/ikev2ProtocolConfig.h"
 #include "core/models/protocols/torProtocolConfig.h"
 #include "core/models/protocols/dnsProtocolConfig.h"
-#include "core/models/protocols/mtProxyProtocolConfig.h"
-#include "core/models/protocols/telemtProtocolConfig.h"

 namespace amnezia
 {
@@ -38,8 +36,6 @@ struct ProtocolConfig {
        XrayProtocolConfig,
        SftpProtocolConfig,
        Socks5ProxyProtocolConfig,
-        MtProxyProtocolConfig,
-        TelemtProtocolConfig,
        Ikev2ProtocolConfig,
        TorProtocolConfig,
        DnsProtocolConfig
--- a/client/core/models/protocols/awgProtocolConfig.cpp
+++ b/client/core/models/protocols/awgProtocolConfig.cpp
@@ -74,28 +74,6 @@ QJsonObject AwgServerConfig::toJson() const
    obj[configKey::specialJunk4] = specialJunk4;
    obj[configKey::specialJunk5] = specialJunk5;
    
-    if (!headerProtectionKey.isEmpty()) {
-        obj[configKey::headerProtectionKey] = headerProtectionKey;
-    }
-    if (!contentPaddingAddition.isEmpty()) {
-        obj[configKey::contentPaddingAddition] = contentPaddingAddition;
-    }
-    if (!rekeyAfterTime.isEmpty()) {
-        obj[configKey::rekeyAfterTime] = rekeyAfterTime;
-    }
-    if (!rekeyTimeout.isEmpty()) {
-        obj[configKey::rekeyTimeout] = rekeyTimeout;
-    }
-    if (!rejectAfterTime.isEmpty()) {
-        obj[configKey::rejectAfterTime] = rejectAfterTime;
-    }
-    if (!keepaliveTimeout.isEmpty()) {
-        obj[configKey::keepaliveTimeout] = keepaliveTimeout;
-    }
-    if (!maxHandshakeAttempts.isEmpty()) {
-        obj[configKey::maxHandshakeAttempts] = maxHandshakeAttempts;
-    }
-    
    if (isThirdPartyConfig) {
        obj[configKey::isThirdPartyConfig] = isThirdPartyConfig;
    }
@@ -131,14 +109,6 @@ AwgServerConfig AwgServerConfig::fromJson(const QJsonObject& json)
    config.specialJunk3 = json.value(configKey::specialJunk3).toString();
    config.specialJunk4 = json.value(configKey::specialJunk4).toString();
    config.specialJunk5 = json.value(configKey::specialJunk5).toString();
-
-    config.headerProtectionKey = json.value(configKey::headerProtectionKey).toString();
-    config.contentPaddingAddition = json.value(configKey::contentPaddingAddition).toString();
-    config.rekeyAfterTime = json.value(configKey::rekeyAfterTime).toString();
-    config.rekeyTimeout = json.value(configKey::rekeyTimeout).toString();
-    config.rejectAfterTime = json.value(configKey::rejectAfterTime).toString();
-    config.keepaliveTimeout = json.value(configKey::keepaliveTimeout).toString();
-    config.maxHandshakeAttempts = json.value(configKey::maxHandshakeAttempts).toString();
    
    config.isThirdPartyConfig = json.value(configKey::isThirdPartyConfig).toBool(false);
    
@@ -226,43 +196,11 @@ QJsonObject AwgClientConfig::toJson() const
        obj[configKey::transportPacketMagicHeader] = transportPacketMagicHeader;
    }
    
-    if (!specialJunk1.isEmpty()) {
-        obj[configKey::specialJunk1] = specialJunk1;
-    }
-    if (!specialJunk2.isEmpty()) {
-        obj[configKey::specialJunk2] = specialJunk2;
-    }
-    if (!specialJunk3.isEmpty()) {
-        obj[configKey::specialJunk3] = specialJunk3;
-    }
-    if (!specialJunk4.isEmpty()) {
-        obj[configKey::specialJunk4] = specialJunk4;
-    }
-    if (!specialJunk5.isEmpty()) {
-        obj[configKey::specialJunk5] = specialJunk5;
-    }
-
-    if (!headerProtectionKey.isEmpty()) {
-        obj[configKey::headerProtectionKey] = headerProtectionKey;
-    }
-    if (!contentPaddingAddition.isEmpty()) {
-        obj[configKey::contentPaddingAddition] = contentPaddingAddition;
-    }
-    if (!rekeyAfterTime.isEmpty()) {
-        obj[configKey::rekeyAfterTime] = rekeyAfterTime;
-    }
-    if (!rekeyTimeout.isEmpty()) {
-        obj[configKey::rekeyTimeout] = rekeyTimeout;
-    }
-    if (!rejectAfterTime.isEmpty()) {
-        obj[configKey::rejectAfterTime] = rejectAfterTime;
-    }
-    if (!keepaliveTimeout.isEmpty()) {
-        obj[configKey::keepaliveTimeout] = keepaliveTimeout;
-    }
-    if (!maxHandshakeAttempts.isEmpty()) {
-        obj[configKey::maxHandshakeAttempts] = maxHandshakeAttempts;
-    }
+    obj[configKey::specialJunk1] = specialJunk1;
+    obj[configKey::specialJunk2] = specialJunk2;
+    obj[configKey::specialJunk3] = specialJunk3;
+    obj[configKey::specialJunk4] = specialJunk4;
+    obj[configKey::specialJunk5] = specialJunk5;
    
    if (isObfuscationEnabled) {
        obj[configKey::isObfuscationEnabled] = isObfuscationEnabled;
@@ -310,14 +248,6 @@ AwgClientConfig AwgClientConfig::fromJson(const QJsonObject& json)
    config.specialJunk3 = json.value(configKey::specialJunk3).toString();
    config.specialJunk4 = json.value(configKey::specialJunk4).toString();
    config.specialJunk5 = json.value(configKey::specialJunk5).toString();
-
-    config.headerProtectionKey = json.value(configKey::headerProtectionKey).toString();
-    config.contentPaddingAddition = json.value(configKey::contentPaddingAddition).toString();
-    config.rekeyAfterTime = json.value(configKey::rekeyAfterTime).toString();
-    config.rekeyTimeout = json.value(configKey::rekeyTimeout).toString();
-    config.rejectAfterTime = json.value(configKey::rejectAfterTime).toString();
-    config.keepaliveTimeout = json.value(configKey::keepaliveTimeout).toString();
-    config.maxHandshakeAttempts = json.value(configKey::maxHandshakeAttempts).toString();
    
    config.isObfuscationEnabled = json.value(configKey::isObfuscationEnabled).toBool(false);
    
@@ -380,8 +310,7 @@ bool AwgServerConfig::hasEqualServerSettings(const AwgServerConfig& other) const
        transportPacketMagicHeader != other.transportPacketMagicHeader ||
        specialJunk1 != other.specialJunk1 || specialJunk2 != other.specialJunk2 ||
        specialJunk3 != other.specialJunk3 || specialJunk4 != other.specialJunk4 ||
-        specialJunk5 != other.specialJunk5 ||
-        headerProtectionKey != other.headerProtectionKey) {
+        specialJunk5 != other.specialJunk5) {
        return false;
    }

--- a/client/core/models/protocols/awgProtocolConfig.h
+++ b/client/core/models/protocols/awgProtocolConfig.h
@@ -39,13 +39,6 @@ struct AwgServerConfig {
    QString specialJunk3;
    QString specialJunk4;
    QString specialJunk5;
-    QString headerProtectionKey;
-    QString contentPaddingAddition;
-    QString rekeyAfterTime;
-    QString rekeyTimeout;
-    QString rejectAfterTime;
-    QString keepaliveTimeout;
-    QString maxHandshakeAttempts;
    bool isThirdPartyConfig = false;
    
    QJsonObject toJson() const;
@@ -83,13 +76,6 @@ struct AwgClientConfig {
    QString specialJunk3;
    QString specialJunk4;
    QString specialJunk5;
-    QString headerProtectionKey;
-    QString contentPaddingAddition;
-    QString rekeyAfterTime;
-    QString rekeyTimeout;
-    QString rejectAfterTime;
-    QString keepaliveTimeout;
-    QString maxHandshakeAttempts;
    bool isObfuscationEnabled = false;
    
    QJsonObject toJson() const;
--- a/client/core/models/protocols/mtProxyProtocolConfig.cpp
+++ b/client/core/models/protocols/mtProxyProtocolConfig.cpp
@@ -1,147 +0,0 @@
-#include "mtProxyProtocolConfig.h"
-
-#include "../../../core/utils/protocolEnum.h"
-#include "../../../core/protocols/protocolUtils.h"
-#include "../../../core/utils/constants/configKeys.h"
-#include "../../../core/utils/constants/protocolConstants.h"
-#include <QJsonArray>
-
-#include <algorithm>
-
-using namespace amnezia;
-
-namespace amnezia {
-
-    QJsonObject MtProxyProtocolConfig::toJson() const {
-        QJsonObject obj;
-
-        if (!port.isEmpty()) {
-            obj[configKey::port] = port;
-        }
-        if (!secret.isEmpty()) {
-            obj[protocols::mtProxy::secretKey] = secret;
-        }
-        if (!tag.isEmpty()) {
-            obj[protocols::mtProxy::tagKey] = tag;
-        }
-        if (!tgLink.isEmpty()) {
-            obj[protocols::mtProxy::tgLinkKey] = tgLink;
-        }
-        if (!tmeLink.isEmpty()) {
-            obj[protocols::mtProxy::tmeLinkKey] = tmeLink;
-        }
-        obj[protocols::mtProxy::isEnabledKey] = isEnabled;
-        if (!publicHost.isEmpty()) {
-            obj[protocols::mtProxy::publicHostKey] = publicHost;
-        }
-        if (!transportMode.isEmpty()) {
-            obj[protocols::mtProxy::transportModeKey] = transportMode;
-        }
-        if (!tlsDomain.isEmpty()) {
-            obj[protocols::mtProxy::tlsDomainKey] = tlsDomain;
-        }
-        if (!additionalSecrets.isEmpty()) {
-            obj[protocols::mtProxy::additionalSecretsKey] = QJsonArray::fromStringList(additionalSecrets);
-        }
-        if (!workersMode.isEmpty()) {
-            obj[protocols::mtProxy::workersModeKey] = workersMode;
-        }
-        if (!workers.isEmpty()) {
-            obj[protocols::mtProxy::workersKey] = workers;
-        }
-        obj[protocols::mtProxy::natEnabledKey] = natEnabled;
-        if (!natInternalIp.isEmpty()) {
-            obj[protocols::mtProxy::natInternalIpKey] = natInternalIp;
-        }
-        if (!natExternalIp.isEmpty()) {
-            obj[protocols::mtProxy::natExternalIpKey] = natExternalIp;
-        }
-
-        return obj;
-    }
-
-    MtProxyProtocolConfig MtProxyProtocolConfig::fromJson(const QJsonObject &json) {
-        MtProxyProtocolConfig config;
-
-        config.port = json.value(configKey::port).toString();
-        config.secret = json.value(protocols::mtProxy::secretKey).toString();
-        config.tag = json.value(protocols::mtProxy::tagKey).toString();
-        config.tgLink = json.value(protocols::mtProxy::tgLinkKey).toString();
-        config.tmeLink = json.value(protocols::mtProxy::tmeLinkKey).toString();
-        config.isEnabled = json.value(protocols::mtProxy::isEnabledKey).toBool(true);
-        config.publicHost = json.value(protocols::mtProxy::publicHostKey).toString();
-        config.transportMode = json.value(protocols::mtProxy::transportModeKey).toString();
-        config.tlsDomain = json.value(protocols::mtProxy::tlsDomainKey).toString();
-        for (const auto &v: json.value(protocols::mtProxy::additionalSecretsKey).toArray()) {
-            const QString s = v.toString();
-            if (!s.isEmpty()) {
-                config.additionalSecrets.append(s);
-            }
-        }
-        config.workersMode = json.value(protocols::mtProxy::workersModeKey).toString();
-        config.workers = json.value(protocols::mtProxy::workersKey).toString();
-        config.natEnabled = json.value(protocols::mtProxy::natEnabledKey).toBool(false);
-        config.natInternalIp = json.value(protocols::mtProxy::natInternalIpKey).toString();
-        config.natExternalIp = json.value(protocols::mtProxy::natExternalIpKey).toString();
-
-        return config;
-    }
-
-    bool MtProxyProtocolConfig::equalsDockerDeploymentSettings(const MtProxyProtocolConfig &other) const {
-        const auto normPort = [](const QString &p) {
-            return p.isEmpty() ? QString(protocols::mtProxy::defaultPort) : p;
-        };
-        const auto normTransport = [](const QString &t) {
-            return t.isEmpty() ? QString(protocols::mtProxy::transportModeStandard) : t;
-        };
-        const auto normWorkersMode = [](const QString &m) {
-            return m.isEmpty() ? QString(protocols::mtProxy::workersModeAuto) : m;
-        };
-
-        if (normPort(port) != normPort(other.port)) {
-            return false;
-        }
-        if (normTransport(transportMode) != normTransport(other.transportMode)) {
-            return false;
-        }
-        if (tlsDomain != other.tlsDomain) {
-            return false;
-        }
-        if (secret != other.secret) {
-            return false;
-        }
-        if (tag != other.tag) {
-            return false;
-        }
-        if (publicHost != other.publicHost) {
-            return false;
-        }
-        if (normWorkersMode(workersMode) != normWorkersMode(other.workersMode)) {
-            return false;
-        }
-        if (workers != other.workers) {
-            return false;
-        }
-        if (natEnabled != other.natEnabled) {
-            return false;
-        }
-        if (natInternalIp != other.natInternalIp) {
-            return false;
-        }
-        if (natExternalIp != other.natExternalIp) {
-            return false;
-        }
-        if (isEnabled != other.isEnabled) {
-            return false;
-        }
-
-        QStringList aa = additionalSecrets;
-        QStringList bb = other.additionalSecrets;
-        aa.removeAll(QString());
-        bb.removeAll(QString());
-        std::sort(aa.begin(), aa.end());
-        std::sort(bb.begin(), bb.end());
-        return aa == bb;
-    }
-
-} // namespace amnezia
--- a/client/core/models/protocols/mtProxyProtocolConfig.h
+++ b/client/core/models/protocols/mtProxyProtocolConfig.h
@@ -1,38 +0,0 @@
-#ifndef MTPROXYPROTOCOLCONFIG_H
-#define MTPROXYPROTOCOLCONFIG_H
-
-#include <QJsonObject>
-#include <QString>
-#include <QStringList>
-
-namespace amnezia {
-
-    struct MtProxyProtocolConfig {
-        QString port;
-        QString secret;
-        QString tag;
-        QString tgLink;
-        QString tmeLink;
-        bool isEnabled = true;
-        QString publicHost;
-        QString transportMode;
-        QString tlsDomain;
-        QStringList additionalSecrets;
-        QString workersMode;
-        QString workers;
-        bool natEnabled = false;
-        QString natInternalIp;
-        QString natExternalIp;
-
-        QJsonObject toJson() const;
-
-        static MtProxyProtocolConfig fromJson(const QJsonObject &json);
-
-        // Port, transport, TLS, secrets, NAT, workers, isEnabled, additionalSecrets (order-independent).
-        // Ignores tgLink / tmeLink (derived / display).
-        bool equalsDockerDeploymentSettings(const MtProxyProtocolConfig &other) const;
-    };
-
-} // namespace amnezia
-
-#endif // MTPROXYPROTOCOLCONFIG_H
--- a/client/core/models/protocols/telemtProtocolConfig.cpp
+++ b/client/core/models/protocols/telemtProtocolConfig.cpp
@@ -1,162 +0,0 @@
-#include "telemtProtocolConfig.h"
-
-#include "core/utils/constants/configKeys.h"
-#include "core/utils/constants/protocolConstants.h"
-
-#include <QJsonArray>
-#include <algorithm>
-
-using namespace amnezia;
-
-QJsonObject TelemtProtocolConfig::toJson() const
-{
-    QJsonObject obj;
-    if (!port.isEmpty()) {
-        obj[QString(configKey::port)] = port;
-    }
-    if (!secret.isEmpty()) {
-        obj[protocols::telemt::secretKey] = secret;
-    }
-    if (!tag.isEmpty()) {
-        obj[protocols::telemt::tagKey] = tag;
-    }
-    if (!tgLink.isEmpty()) {
-        obj[protocols::telemt::tgLinkKey] = tgLink;
-    }
-    if (!tmeLink.isEmpty()) {
-        obj[protocols::telemt::tmeLinkKey] = tmeLink;
-    }
-    obj[protocols::telemt::isEnabledKey] = isEnabled;
-    if (!publicHost.isEmpty()) {
-        obj[protocols::telemt::publicHostKey] = publicHost;
-    }
-    if (!transportMode.isEmpty()) {
-        obj[protocols::telemt::transportModeKey] = transportMode;
-    }
-    if (!tlsDomain.isEmpty()) {
-        obj[protocols::telemt::tlsDomainKey] = tlsDomain;
-    }
-    obj[protocols::telemt::maskEnabledKey] = maskEnabled;
-    obj[protocols::telemt::tlsEmulationKey] = tlsEmulation;
-    obj[protocols::telemt::useMiddleProxyKey] = useMiddleProxy;
-    if (!userName.isEmpty()) {
-        obj[protocols::telemt::userNameKey] = userName;
-    }
-    if (!additionalSecrets.isEmpty()) {
-        obj[protocols::telemt::additionalSecretsKey] = QJsonArray::fromStringList(additionalSecrets);
-    }
-    if (!workersMode.isEmpty()) {
-        obj[protocols::telemt::workersModeKey] = workersMode;
-    }
-    if (!workers.isEmpty()) {
-        obj[protocols::telemt::workersKey] = workers;
-    }
-    obj[protocols::telemt::natEnabledKey] = natEnabled;
-    if (!natInternalIp.isEmpty()) {
-        obj[protocols::telemt::natInternalIpKey] = natInternalIp;
-    }
-    if (!natExternalIp.isEmpty()) {
-        obj[protocols::telemt::natExternalIpKey] = natExternalIp;
-    }
-    return obj;
-}
-
-TelemtProtocolConfig TelemtProtocolConfig::fromJson(const QJsonObject &json)
-{
-    TelemtProtocolConfig c;
-    c.port = json.value(QString(configKey::port)).toString();
-    c.secret = json.value(protocols::telemt::secretKey).toString();
-    c.tag = json.value(protocols::telemt::tagKey).toString();
-    c.tgLink = json.value(protocols::telemt::tgLinkKey).toString();
-    c.tmeLink = json.value(protocols::telemt::tmeLinkKey).toString();
-    c.isEnabled = json.value(protocols::telemt::isEnabledKey).toBool(true);
-    c.publicHost = json.value(protocols::telemt::publicHostKey).toString();
-    c.transportMode = json.value(protocols::telemt::transportModeKey).toString();
-    c.tlsDomain = json.value(protocols::telemt::tlsDomainKey).toString();
-    c.maskEnabled = json.value(protocols::telemt::maskEnabledKey).toBool(true);
-    c.tlsEmulation = json.value(protocols::telemt::tlsEmulationKey).toBool(false);
-    c.useMiddleProxy = json.value(protocols::telemt::useMiddleProxyKey).toBool(true);
-    c.userName = json.value(protocols::telemt::userNameKey).toString();
-    for (const auto &v : json.value(protocols::telemt::additionalSecretsKey).toArray()) {
-        const QString s = v.toString();
-        if (!s.isEmpty()) {
-            c.additionalSecrets.append(s);
-        }
-    }
-    c.workersMode = json.value(protocols::telemt::workersModeKey).toString();
-    c.workers = json.value(protocols::telemt::workersKey).toString();
-    c.natEnabled = json.value(protocols::telemt::natEnabledKey).toBool(false);
-    c.natInternalIp = json.value(protocols::telemt::natInternalIpKey).toString();
-    c.natExternalIp = json.value(protocols::telemt::natExternalIpKey).toString();
-    return c;
-}
-
-bool TelemtProtocolConfig::equalsDockerDeploymentSettings(const TelemtProtocolConfig &other) const
-{
-    const auto normPort = [](const QString &p) {
-        return p.isEmpty() ? QString(protocols::telemt::defaultPort) : p;
-    };
-    const auto normTransport = [](const QString &t) {
-        return t.isEmpty() ? QString(protocols::telemt::transportModeStandard) : t;
-    };
-    const auto normWorkersMode = [](const QString &m) {
-        return m.isEmpty() ? QString(protocols::telemt::workersModeAuto) : m;
-    };
-
-    if (normPort(port) != normPort(other.port)) {
-        return false;
-    }
-    if (normTransport(transportMode) != normTransport(other.transportMode)) {
-        return false;
-    }
-    if (tlsDomain != other.tlsDomain) {
-        return false;
-    }
-    if (secret != other.secret) {
-        return false;
-    }
-    if (tag != other.tag) {
-        return false;
-    }
-    if (publicHost != other.publicHost) {
-        return false;
-    }
-    if (maskEnabled != other.maskEnabled) {
-        return false;
-    }
-    if (tlsEmulation != other.tlsEmulation) {
-        return false;
-    }
-    if (useMiddleProxy != other.useMiddleProxy) {
-        return false;
-    }
-    if (userName != other.userName) {
-        return false;
-    }
-    if (normWorkersMode(workersMode) != normWorkersMode(other.workersMode)) {
-        return false;
-    }
-    if (workers != other.workers) {
-        return false;
-    }
-    if (natEnabled != other.natEnabled) {
-        return false;
-    }
-    if (natInternalIp != other.natInternalIp) {
-        return false;
-    }
-    if (natExternalIp != other.natExternalIp) {
-        return false;
-    }
-    if (isEnabled != other.isEnabled) {
-        return false;
-    }
-
-    QStringList aa = additionalSecrets;
-    QStringList bb = other.additionalSecrets;
-    aa.removeAll(QString());
-    bb.removeAll(QString());
-    std::sort(aa.begin(), aa.end());
-    std::sort(bb.begin(), bb.end());
-    return aa == bb;
-}
--- a/client/core/models/protocols/telemtProtocolConfig.h
+++ b/client/core/models/protocols/telemtProtocolConfig.h
@@ -1,38 +0,0 @@
-#ifndef TELEMTPROTOCOLCONFIG_H
-#define TELEMTPROTOCOLCONFIG_H
-
-#include <QJsonObject>
-#include <QString>
-#include <QStringList>
-
-namespace amnezia {
-
-struct TelemtProtocolConfig {
-    QString port;
-    QString secret;
-    QString tag;
-    QString tgLink;
-    QString tmeLink;
-    bool isEnabled = true;
-    QString publicHost;
-    QString transportMode;
-    QString tlsDomain;
-    bool maskEnabled = true;
-    bool tlsEmulation = false;
-    bool useMiddleProxy = true;
-    QString userName;
-    QStringList additionalSecrets;
-    QString workersMode;
-    QString workers;
-    bool natEnabled = false;
-    QString natInternalIp;
-    QString natExternalIp;
-
-    QJsonObject toJson() const;
-    static TelemtProtocolConfig fromJson(const QJsonObject &json);
-    bool equalsDockerDeploymentSettings(const TelemtProtocolConfig &other) const;
-};
-
-} // namespace amnezia
-
-#endif // TELEMTPROTOCOLCONFIG_H
--- a/client/core/models/protocols/xrayProtocolConfig.cpp
+++ b/client/core/models/protocols/xrayProtocolConfig.cpp
@@ -3,267 +3,20 @@
 #include <QJsonDocument>
 #include <QJsonArray>

-#include "core/utils/protocolEnum.h"
-#include "core/protocols/protocolUtils.h"
-#include "core/utils/constants/configKeys.h"
-#include "core/utils/constants/protocolConstants.h"
+#include "../../../core/utils/protocolEnum.h"
+#include "../../../core/protocols/protocolUtils.h"
+#include "../../../core/utils/constants/configKeys.h"
+#include "../../../core/utils/constants/protocolConstants.h"

 using namespace amnezia;
 using namespace ProtocolUtils;
-
 namespace amnezia
 {
-QJsonObject XrayXPaddingConfig::toJson() const
-{
-    QJsonObject obj;
-    if (!bytesMin.isEmpty())   obj[configKey::xPaddingBytesMin]  = bytesMin;
-    if (!bytesMax.isEmpty())   obj[configKey::xPaddingBytesMax]  = bytesMax;
-    obj[configKey::xPaddingObfsMode]  = obfsMode;
-    if (!key.isEmpty())        obj[configKey::xPaddingKey]       = key;
-    if (!header.isEmpty())     obj[configKey::xPaddingHeader]    = header;
-    if (!placement.isEmpty())  obj[configKey::xPaddingPlacement] = placement;
-    if (!method.isEmpty())     obj[configKey::xPaddingMethod]    = method;
-    return obj;
-}
-
-XrayXPaddingConfig XrayXPaddingConfig::fromJson(const QJsonObject &json)
-{
-    XrayXPaddingConfig c;
-    c.bytesMin  = json.value(configKey::xPaddingBytesMin).toString();
-    c.bytesMax  = json.value(configKey::xPaddingBytesMax).toString();
-    c.obfsMode  = json.value(configKey::xPaddingObfsMode).toBool(true);
-    c.key       = json.value(configKey::xPaddingKey).toString();
-    c.header    = json.value(configKey::xPaddingHeader).toString();
-    c.placement = json.value(configKey::xPaddingPlacement).toString(protocols::xray::defaultXPaddingPlacement);
-    c.method    = json.value(configKey::xPaddingMethod).toString(protocols::xray::defaultXPaddingMethod);
-    return c;
-}
-
-QJsonObject XrayXmuxConfig::toJson() const
-{
-    QJsonObject obj;
-    obj[configKey::xmuxEnabled] = enabled;
-    if (!maxConcurrencyMin.isEmpty())   obj[configKey::xmuxMaxConcurrencyMin]   = maxConcurrencyMin;
-    if (!maxConcurrencyMax.isEmpty())   obj[configKey::xmuxMaxConcurrencyMax]   = maxConcurrencyMax;
-    if (!maxConnectionsMin.isEmpty())   obj[configKey::xmuxMaxConnectionsMin]   = maxConnectionsMin;
-    if (!maxConnectionsMax.isEmpty())   obj[configKey::xmuxMaxConnectionsMax]   = maxConnectionsMax;
-    if (!cMaxReuseTimesMin.isEmpty())   obj[configKey::xmuxCMaxReuseTimesMin]   = cMaxReuseTimesMin;
-    if (!cMaxReuseTimesMax.isEmpty())   obj[configKey::xmuxCMaxReuseTimesMax]   = cMaxReuseTimesMax;
-    if (!hMaxRequestTimesMin.isEmpty()) obj[configKey::xmuxHMaxRequestTimesMin] = hMaxRequestTimesMin;
-    if (!hMaxRequestTimesMax.isEmpty()) obj[configKey::xmuxHMaxRequestTimesMax] = hMaxRequestTimesMax;
-    if (!hMaxReusableSecsMin.isEmpty()) obj[configKey::xmuxHMaxReusableSecsMin] = hMaxReusableSecsMin;
-    if (!hMaxReusableSecsMax.isEmpty()) obj[configKey::xmuxHMaxReusableSecsMax] = hMaxReusableSecsMax;
-    if (!hKeepAlivePeriod.isEmpty())    obj[configKey::xmuxHKeepAlivePeriod]    = hKeepAlivePeriod;
-    return obj;
-}
-
-XrayXmuxConfig XrayXmuxConfig::fromJson(const QJsonObject &json)
-{
-    XrayXmuxConfig c;
-    c.enabled             = json.value(configKey::xmuxEnabled).toBool(true);
-    c.maxConcurrencyMin   = json.value(configKey::xmuxMaxConcurrencyMin).toString("0");
-    c.maxConcurrencyMax   = json.value(configKey::xmuxMaxConcurrencyMax).toString("0");
-    c.maxConnectionsMin   = json.value(configKey::xmuxMaxConnectionsMin).toString("0");
-    c.maxConnectionsMax   = json.value(configKey::xmuxMaxConnectionsMax).toString("0");
-    c.cMaxReuseTimesMin   = json.value(configKey::xmuxCMaxReuseTimesMin).toString("0");
-    c.cMaxReuseTimesMax   = json.value(configKey::xmuxCMaxReuseTimesMax).toString("0");
-    c.hMaxRequestTimesMin = json.value(configKey::xmuxHMaxRequestTimesMin).toString("0");
-    c.hMaxRequestTimesMax = json.value(configKey::xmuxHMaxRequestTimesMax).toString("0");
-    c.hMaxReusableSecsMin = json.value(configKey::xmuxHMaxReusableSecsMin).toString("0");
-    c.hMaxReusableSecsMax = json.value(configKey::xmuxHMaxReusableSecsMax).toString("0");
-    c.hKeepAlivePeriod    = json.value(configKey::xmuxHKeepAlivePeriod).toString();
-    return c;
-}
-
-QJsonObject XrayXhttpConfig::toJson() const
-{
-    QJsonObject obj;
-    if (!mode.isEmpty())            obj[configKey::xhttpMode]            = mode;
-    if (!host.isEmpty())            obj[configKey::xhttpHost]            = host;
-    if (!path.isEmpty())            obj[configKey::xhttpPath]            = path;
-    if (!headersTemplate.isEmpty()) obj[configKey::xhttpHeadersTemplate] = headersTemplate;
-    if (!uplinkMethod.isEmpty())    obj[configKey::xhttpUplinkMethod]    = uplinkMethod;
-    obj[configKey::xhttpDisableGrpc] = disableGrpc;
-    obj[configKey::xhttpDisableSse]  = disableSse;
-
-    if (!sessionPlacement.isEmpty())    obj[configKey::xhttpSessionPlacement]    = sessionPlacement;
-    if (!sessionKey.isEmpty())          obj[configKey::xhttpSessionKey]          = sessionKey;
-    if (!seqPlacement.isEmpty())        obj[configKey::xhttpSeqPlacement]        = seqPlacement;
-    if (!seqKey.isEmpty())              obj[configKey::xhttpSeqKey]              = seqKey;
-    if (!uplinkDataPlacement.isEmpty()) obj[configKey::xhttpUplinkDataPlacement] = uplinkDataPlacement;
-    if (!uplinkDataKey.isEmpty())       obj[configKey::xhttpUplinkDataKey]       = uplinkDataKey;
-
-    if (!uplinkChunkSize.isEmpty())         obj[configKey::xhttpUplinkChunkSize]         = uplinkChunkSize;
-    if (!scMaxBufferedPosts.isEmpty())      obj[configKey::xhttpScMaxBufferedPosts]      = scMaxBufferedPosts;
-    if (!scMaxEachPostBytesMin.isEmpty())   obj[configKey::xhttpScMaxEachPostBytesMin]   = scMaxEachPostBytesMin;
-    if (!scMaxEachPostBytesMax.isEmpty())   obj[configKey::xhttpScMaxEachPostBytesMax]   = scMaxEachPostBytesMax;
-    if (!scMinPostsIntervalMsMin.isEmpty()) obj[configKey::xhttpScMinPostsIntervalMsMin] = scMinPostsIntervalMsMin;
-    if (!scMinPostsIntervalMsMax.isEmpty()) obj[configKey::xhttpScMinPostsIntervalMsMax] = scMinPostsIntervalMsMax;
-    if (!scStreamUpServerSecsMin.isEmpty()) obj[configKey::xhttpScStreamUpServerSecsMin] = scStreamUpServerSecsMin;
-    if (!scStreamUpServerSecsMax.isEmpty()) obj[configKey::xhttpScStreamUpServerSecsMax] = scStreamUpServerSecsMax;
-
-    obj["xPadding"] = xPadding.toJson();
-    obj["xmux"]     = xmux.toJson();
-
-    return obj;
-}
-
-namespace
-{
-    XrayXhttpConfig clearedXhttpConfig()
-    {
-        XrayXhttpConfig c;
-        c.mode = QString();
-        c.host = QString();
-        c.path = QString();
-        c.headersTemplate = QString();
-        c.uplinkMethod = QString();
-        c.disableGrpc = false;
-        c.disableSse = false;
-        c.sessionPlacement = QString();
-        c.sessionKey = QString();
-        c.seqPlacement = QString();
-        c.seqKey = QString();
-        c.uplinkDataPlacement = QString();
-        c.uplinkDataKey = QString();
-        c.uplinkChunkSize = QString();
-        c.scMaxBufferedPosts = QString();
-        c.scMaxEachPostBytesMin = QString();
-        c.scMaxEachPostBytesMax = QString();
-        c.scMinPostsIntervalMsMin = QString();
-        c.scMinPostsIntervalMsMax = QString();
-        c.scStreamUpServerSecsMin = QString();
-        c.scStreamUpServerSecsMax = QString();
-        return c;
-    }
-} // namespace
-
-XrayXhttpConfig XrayXhttpConfig::fromJson(const QJsonObject &json)
-{
-    if (json.isEmpty()) {
-        return clearedXhttpConfig();
-    }
-
-    XrayXhttpConfig c = clearedXhttpConfig();
-
-    if (json.contains(configKey::xhttpMode)) {
-        c.mode = json.value(configKey::xhttpMode).toString();
-    }
-    if (json.contains(configKey::xhttpHost)) {
-        c.host = json.value(configKey::xhttpHost).toString();
-    }
-    if (json.contains(configKey::xhttpPath)) {
-        c.path = json.value(configKey::xhttpPath).toString();
-    }
-    if (json.contains(configKey::xhttpHeadersTemplate)) {
-        c.headersTemplate = json.value(configKey::xhttpHeadersTemplate).toString();
-    }
-    if (json.contains(configKey::xhttpUplinkMethod)) {
-        c.uplinkMethod = json.value(configKey::xhttpUplinkMethod).toString();
-    }
-    if (json.contains(configKey::xhttpDisableGrpc)) {
-        c.disableGrpc = json.value(configKey::xhttpDisableGrpc).toBool();
-    }
-    if (json.contains(configKey::xhttpDisableSse)) {
-        c.disableSse = json.value(configKey::xhttpDisableSse).toBool();
-    }
-    if (json.contains(configKey::xhttpSessionPlacement)) {
-        c.sessionPlacement = json.value(configKey::xhttpSessionPlacement).toString();
-    }
-    if (json.contains(configKey::xhttpSessionKey)) {
-        c.sessionKey = json.value(configKey::xhttpSessionKey).toString();
-    }
-    if (json.contains(configKey::xhttpSeqPlacement)) {
-        c.seqPlacement = json.value(configKey::xhttpSeqPlacement).toString();
-    }
-    if (json.contains(configKey::xhttpSeqKey)) {
-        c.seqKey = json.value(configKey::xhttpSeqKey).toString();
-    }
-    if (json.contains(configKey::xhttpUplinkDataPlacement)) {
-        c.uplinkDataPlacement = json.value(configKey::xhttpUplinkDataPlacement).toString();
-    }
-    if (json.contains(configKey::xhttpUplinkDataKey)) {
-        c.uplinkDataKey = json.value(configKey::xhttpUplinkDataKey).toString();
-    }
-    if (json.contains(configKey::xhttpUplinkChunkSize)) {
-        c.uplinkChunkSize = json.value(configKey::xhttpUplinkChunkSize).toString();
-    }
-    if (json.contains(configKey::xhttpScMaxBufferedPosts)) {
-        c.scMaxBufferedPosts = json.value(configKey::xhttpScMaxBufferedPosts).toString();
-    }
-    if (json.contains(configKey::xhttpScMaxEachPostBytesMin)) {
-        c.scMaxEachPostBytesMin = json.value(configKey::xhttpScMaxEachPostBytesMin).toString();
-    }
-    if (json.contains(configKey::xhttpScMaxEachPostBytesMax)) {
-        c.scMaxEachPostBytesMax = json.value(configKey::xhttpScMaxEachPostBytesMax).toString();
-    }
-    if (json.contains(configKey::xhttpScMinPostsIntervalMsMin)) {
-        c.scMinPostsIntervalMsMin = json.value(configKey::xhttpScMinPostsIntervalMsMin).toString();
-    }
-    if (json.contains(configKey::xhttpScMinPostsIntervalMsMax)) {
-        c.scMinPostsIntervalMsMax = json.value(configKey::xhttpScMinPostsIntervalMsMax).toString();
-    }
-    if (json.contains(configKey::xhttpScStreamUpServerSecsMin)) {
-        c.scStreamUpServerSecsMin = json.value(configKey::xhttpScStreamUpServerSecsMin).toString();
-    }
-    if (json.contains(configKey::xhttpScStreamUpServerSecsMax)) {
-        c.scStreamUpServerSecsMax = json.value(configKey::xhttpScStreamUpServerSecsMax).toString();
-    }
-
-    if (json.contains(QLatin1String("xPadding"))) {
-        c.xPadding = XrayXPaddingConfig::fromJson(json.value(QLatin1String("xPadding")).toObject());
-    }
-    if (json.contains(QLatin1String("xmux"))) {
-        c.xmux = XrayXmuxConfig::fromJson(json.value(QLatin1String("xmux")).toObject());
-    }
-
-    return c;
-}
-
-QJsonObject XrayMkcpConfig::toJson() const
-{
-    QJsonObject obj;
-    if (!tti.isEmpty())              obj[configKey::mkcpTti]              = tti;
-    if (!uplinkCapacity.isEmpty())   obj[configKey::mkcpUplinkCapacity]   = uplinkCapacity;
-    if (!downlinkCapacity.isEmpty()) obj[configKey::mkcpDownlinkCapacity] = downlinkCapacity;
-    if (!readBufferSize.isEmpty())   obj[configKey::mkcpReadBufferSize]   = readBufferSize;
-    if (!writeBufferSize.isEmpty())  obj[configKey::mkcpWriteBufferSize]  = writeBufferSize;
-    obj[configKey::mkcpCongestion] = congestion;
-    return obj;
-}
-
-XrayMkcpConfig XrayMkcpConfig::fromJson(const QJsonObject &json)
-{
-    XrayMkcpConfig c;
-    if (json.isEmpty()) {
-        return c;
-    }
-    if (json.contains(configKey::mkcpTti)) {
-        c.tti = json.value(configKey::mkcpTti).toString();
-    }
-    if (json.contains(configKey::mkcpUplinkCapacity)) {
-        c.uplinkCapacity = json.value(configKey::mkcpUplinkCapacity).toString();
-    }
-    if (json.contains(configKey::mkcpDownlinkCapacity)) {
-        c.downlinkCapacity = json.value(configKey::mkcpDownlinkCapacity).toString();
-    }
-    if (json.contains(configKey::mkcpReadBufferSize)) {
-        c.readBufferSize = json.value(configKey::mkcpReadBufferSize).toString();
-    }
-    if (json.contains(configKey::mkcpWriteBufferSize)) {
-        c.writeBufferSize = json.value(configKey::mkcpWriteBufferSize).toString();
-    }
-    if (json.contains(configKey::mkcpCongestion)) {
-        c.congestion = json.value(configKey::mkcpCongestion).toBool();
-    }
-    return c;
-}

 QJsonObject XrayServerConfig::toJson() const
 {
    QJsonObject obj;
-
-    // Existing fields
+    
    if (!port.isEmpty()) {
        obj[configKey::port] = port;
    }
@@ -276,126 +29,60 @@ QJsonObject XrayServerConfig::toJson() const
    if (!site.isEmpty()) {
        obj[configKey::site] = site;
    }
-
+    
    if (isThirdPartyConfig) {
        obj[configKey::isThirdPartyConfig] = isThirdPartyConfig;
    }
-
-    // New: Security
-    if (!security.isEmpty()) {
-        obj[configKey::xraySecurity] = security;
-    }
-    if (!flow.isEmpty()) {
-        obj[configKey::xrayFlow] = flow;
-    }
-    if (!fingerprint.isEmpty()) {
-        obj[configKey::xrayFingerprint] = fingerprint;
-    }
-    if (!sni.isEmpty()) {
-        obj[configKey::xraySni] = sni;
-    }
-    if (!alpn.isEmpty()) {
-        obj[configKey::xrayAlpn] = alpn;
-    }
-
-    // New: Transport
-    if (!transport.isEmpty()) {
-        obj[configKey::xrayTransport] = transport;
-    }
-    const QJsonObject xhttpObj = xhttp.toJson();
-    if (!xhttpObj.isEmpty()) {
-        obj[QStringLiteral("xhttp")] = xhttpObj;
-    }
-    const QJsonObject mkcpObj = mkcp.toJson();
-    if (!mkcpObj.isEmpty()) {
-        obj[QStringLiteral("mkcp")] = mkcpObj;
-    }
-
+    
    return obj;
 }

-XrayServerConfig XrayServerConfig::fromJson(const QJsonObject &json)
+XrayServerConfig XrayServerConfig::fromJson(const QJsonObject& json)
 {
-    XrayServerConfig c;
-
-    // Existing fields
-    c.port = json.value(configKey::port).toString();
-    c.transportProto = json.value(configKey::transportProto).toString();
-    c.subnetAddress = json.value(configKey::subnetAddress).toString();
-    c.site = json.value(configKey::site).toString();
-    c.isThirdPartyConfig = json.value(configKey::isThirdPartyConfig).toBool(false);
-
-    if (json.contains(configKey::xraySecurity)) {
-        c.security = json.value(configKey::xraySecurity).toString();
-    }
-    if (json.contains(configKey::xrayFlow)) {
-        c.flow = json.value(configKey::xrayFlow).toString();
-    }
-    if (json.contains(configKey::xrayFingerprint)) {
-        c.fingerprint = json.value(configKey::xrayFingerprint).toString();
-        if (c.fingerprint.contains(QLatin1String("Mozilla/5.0"), Qt::CaseInsensitive)) {
-            c.fingerprint = QString::fromLatin1(protocols::xray::defaultFingerprint);
-        }
-    }
-    if (json.contains(configKey::xraySni)) {
-        c.sni = json.value(configKey::xraySni).toString();
-    }
-    if (json.contains(configKey::xrayAlpn)) {
-        c.alpn = json.value(configKey::xrayAlpn).toString();
-    }
-    if (json.contains(configKey::xrayTransport)) {
-        c.transport = json.value(configKey::xrayTransport).toString();
-    }
-    if (json.contains(QLatin1String("xhttp"))) {
-        const QJsonObject xhttpJson = json.value(QLatin1String("xhttp")).toObject();
-        if (!xhttpJson.isEmpty()) {
-            c.xhttp = XrayXhttpConfig::fromJson(xhttpJson);
-        }
-    }
-    if (json.contains(QLatin1String("mkcp"))) {
-        const QJsonObject mkcpJson = json.value(QLatin1String("mkcp")).toObject();
-        if (!mkcpJson.isEmpty()) {
-            c.mkcp = XrayMkcpConfig::fromJson(mkcpJson);
-        }
-    }
-
-    return c;
+    XrayServerConfig config;
+    
+    config.port = json.value(configKey::port).toString();
+    config.transportProto = json.value(configKey::transportProto).toString();
+    config.subnetAddress = json.value(configKey::subnetAddress).toString();
+    config.site = json.value(configKey::site).toString();
+    
+    config.isThirdPartyConfig = json.value(configKey::isThirdPartyConfig).toBool(false);
+    
+    return config;
 }

-bool XrayServerConfig::hasEqualServerSettings(const XrayServerConfig &other) const
+bool XrayServerConfig::hasEqualServerSettings(const XrayServerConfig& other) const
 {
-    return port == other.port
-           && transportProto == other.transportProto
-           && subnetAddress == other.subnetAddress
-           && site == other.site
-           && security == other.security
-           && flow == other.flow
-           && transport == other.transport
-           && fingerprint == other.fingerprint
-           && sni == other.sni
-           && alpn == other.alpn
-           && xhttp.toJson() == other.xhttp.toJson()
-           && mkcp.toJson() == other.mkcp.toJson();
+    return port == other.port && site == other.site;
 }

 QJsonObject XrayClientConfig::toJson() const
 {
    QJsonObject obj;
-    if (!nativeConfig.isEmpty()) obj[configKey::config]   = nativeConfig;
-    if (!localPort.isEmpty())    obj[configKey::localPort] = localPort;
-    if (!id.isEmpty())           obj[configKey::clientId]  = id;
+    
+    if (!nativeConfig.isEmpty()) {
+        obj[configKey::config] = nativeConfig;
+    }
+    if (!localPort.isEmpty()) {
+        obj[configKey::localPort] = localPort;
+    }
+    if (!id.isEmpty()) {
+        obj[configKey::clientId] = id;
+    }
+    
    return obj;
 }

-XrayClientConfig XrayClientConfig::fromJson(const QJsonObject &json)
+XrayClientConfig XrayClientConfig::fromJson(const QJsonObject& json)
 {
-    XrayClientConfig c;
-    c.nativeConfig = json.value(configKey::config).toString();
-    c.localPort    = json.value(configKey::localPort).toString();
-    c.id           = json.value(configKey::clientId).toString();
-
-    if (c.id.isEmpty() && !c.nativeConfig.isEmpty()) {
-        QJsonDocument doc = QJsonDocument::fromJson(c.nativeConfig.toUtf8());
+    XrayClientConfig config;
+    
+    config.nativeConfig = json.value(configKey::config).toString();
+    config.localPort = json.value(configKey::localPort).toString();
+    config.id = json.value(configKey::clientId).toString();
+    
+    if (config.id.isEmpty() && !config.nativeConfig.isEmpty()) {
+        QJsonDocument doc = QJsonDocument::fromJson(config.nativeConfig.toUtf8());
        if (!doc.isNull() && doc.isObject()) {
            QJsonObject configObj = doc.object();
            if (configObj.contains(protocols::xray::outbounds)) {
@@ -413,7 +100,7 @@ XrayClientConfig XrayClientConfig::fromJson(const QJsonObject &json)
                                    if (!users.isEmpty()) {
                                        QJsonObject user = users[0].toObject();
                                        if (user.contains(protocols::xray::id)) {
-                                            c.id = user[protocols::xray::id].toString();
+                                            config.id = user[protocols::xray::id].toString();
                                        }
                                    }
                                }
@@ -424,15 +111,16 @@ XrayClientConfig XrayClientConfig::fromJson(const QJsonObject &json)
            }
        }
    }
-
-    return c;
+    
+    return config;
 }

 QJsonObject XrayProtocolConfig::toJson() const
 {
    QJsonObject obj = serverConfig.toJson();
-
+    
    if (clientConfig.has_value()) {
+        // Third-party import: nativeConfig is raw Xray JSON (inbounds/outbounds)
        QJsonDocument doc = QJsonDocument::fromJson(clientConfig->nativeConfig.toUtf8());
        if (!doc.isNull() && doc.isObject() && doc.object().contains(protocols::xray::outbounds)
                && !doc.object().contains(configKey::config)) {
@@ -442,20 +130,22 @@ QJsonObject XrayProtocolConfig::toJson() const
            obj[configKey::lastConfig] = QString::fromUtf8(QJsonDocument(clientJson).toJson(QJsonDocument::Compact));
        }
    }
-
+    
    return obj;
 }

-XrayProtocolConfig XrayProtocolConfig::fromJson(const QJsonObject &json)
+XrayProtocolConfig XrayProtocolConfig::fromJson(const QJsonObject& json)
 {
-    XrayProtocolConfig c;
-    c.serverConfig = XrayServerConfig::fromJson(json);
-
+    XrayProtocolConfig config;
+    
+    config.serverConfig = XrayServerConfig::fromJson(json);
+    
    QString lastConfigStr = json.value(configKey::lastConfig).toString();
    if (!lastConfigStr.isEmpty()) {
        QJsonDocument doc = QJsonDocument::fromJson(lastConfigStr.toUtf8());
        if (doc.isObject()) {
            QJsonObject parsed = doc.object();
+            // Third-party import stores raw Xray config (inbounds/outbounds) directly
            if (parsed.contains(protocols::xray::outbounds) && !parsed.contains(configKey::config)) {
                XrayClientConfig clientCfg;
                clientCfg.nativeConfig = lastConfigStr;
@@ -468,170 +158,14 @@ XrayProtocolConfig XrayProtocolConfig::fromJson(const QJsonObject &json)
                        }
                    }
                }
-                const QJsonArray outbounds = parsed.value(protocols::xray::outbounds).toArray();
-                if (!outbounds.isEmpty()) {
-                    const QJsonObject settings = outbounds[0].toObject().value(protocols::xray::settings).toObject();
-                    const QJsonArray vnext = settings.value(protocols::xray::vnext).toArray();
-                    if (!vnext.isEmpty()) {
-                        const QJsonArray users = vnext[0].toObject().value(protocols::xray::users).toArray();
-                        if (!users.isEmpty()) {
-                            clientCfg.id = users[0].toObject().value(protocols::xray::id).toString();
-                        }
-                    }
-                }
-                c.clientConfig = clientCfg;
+                config.clientConfig = clientCfg;
            } else {
-                c.clientConfig = XrayClientConfig::fromJson(parsed);
+                config.clientConfig = XrayClientConfig::fromJson(parsed);
            }
        }
    }
-
-    c.needsClientHydration =
-            c.hasClientConfig()
-            && (!json.contains(configKey::xrayTransport) || c.serverConfig.isThirdPartyConfig);
-    if (c.needsClientHydration) {
-        c.hydrateServerConfigFromClientNative();
-    }
-
-    return c;
-}
-
-bool XrayProtocolConfig::hydrateServerConfigFromClientNative()
-{
-    if (!clientConfig.has_value() || clientConfig->nativeConfig.isEmpty()) {
-        return false;
-    }
-
-    QJsonDocument doc = QJsonDocument::fromJson(clientConfig->nativeConfig.toUtf8());
-    if (doc.isNull() || !doc.isObject()) {
-        return false;
-    }
-
-    const QJsonObject root = doc.object();
-    const QJsonArray outbounds = root.value(protocols::xray::outbounds).toArray();
-    if (outbounds.isEmpty()) {
-        return false;
-    }
-
-    const QJsonObject outbound = outbounds[0].toObject();
-    const QJsonObject streamSettings = outbound.value(protocols::xray::streamSettings).toObject();
-    if (streamSettings.isEmpty()) {
-        return false;
-    }
-
-    XrayServerConfig &srv = serverConfig;
-
-    const QJsonObject settings = outbound.value(protocols::xray::settings).toObject();
-    const QJsonArray vnext = settings.value(protocols::xray::vnext).toArray();
-    if (!vnext.isEmpty()) {
-        const QJsonObject vnextEntry = vnext[0].toObject();
-        if (vnextEntry.contains(protocols::xray::port)) {
-            srv.port = QString::number(vnextEntry.value(protocols::xray::port).toInt());
-        }
-        const QJsonArray users = vnextEntry.value(protocols::xray::users).toArray();
-        if (!users.isEmpty()) {
-            srv.flow = users[0].toObject().value(protocols::xray::flow).toString();
-        }
-    }
-
-    const QString networkVal = streamSettings.value(protocols::xray::network).toString(QStringLiteral("tcp"));
-    if (networkVal == QLatin1String("xhttp")) {
-        srv.transport = QStringLiteral("xhttp");
-    } else if (networkVal == QLatin1String("kcp")) {
-        srv.transport = QStringLiteral("mkcp");
-    } else {
-        srv.transport = QStringLiteral("raw");
-    }
-
-    if (streamSettings.contains(protocols::xray::security)) {
-        srv.security = streamSettings.value(protocols::xray::security).toString();
-    }
-
-    if (srv.security == QLatin1String("reality")) {
-        const QJsonObject rs = streamSettings.value(protocols::xray::realitySettings).toObject();
-        srv.sni = rs.value(protocols::xray::serverName).toString();
-        srv.site = srv.sni.isEmpty() ? srv.site : srv.sni;
-        const QString fp = rs.value(protocols::xray::fingerprint).toString();
-        if (!fp.isEmpty()) {
-            srv.fingerprint = fp.contains(QLatin1String("Mozilla/5.0"), Qt::CaseInsensitive)
-                    ? QString::fromLatin1(protocols::xray::defaultFingerprint)
-                    : fp;
-        }
-    }
-
-    if (srv.security == QLatin1String("tls")) {
-        const QJsonObject tls = streamSettings.value(QStringLiteral("tlsSettings")).toObject();
-        srv.sni = tls.value(protocols::xray::serverName).toString();
-        const QString fp = tls.value(protocols::xray::fingerprint).toString();
-        if (!fp.isEmpty()) {
-            srv.fingerprint = fp;
-        }
-        QStringList alpnList;
-        for (const QJsonValue &v : tls.value(QStringLiteral("alpn")).toArray()) {
-            alpnList << v.toString();
-        }
-        if (!alpnList.isEmpty()) {
-            srv.alpn = alpnList.join(QLatin1Char(','));
-        }
-    }
-
-    if (srv.transport == QLatin1String("xhttp")) {
-        const QJsonObject xhttpObj = streamSettings.value(QStringLiteral("xhttpSettings")).toObject();
-        QJsonObject xhttpJson;
-        const QString mode = xhttpObj.value(QStringLiteral("mode")).toString();
-        if (!mode.isEmpty()) {
-            if (mode == QLatin1String("auto")) {
-                xhttpJson[configKey::xhttpMode] = QStringLiteral("Auto");
-            } else if (mode == QLatin1String("packet-up")) {
-                xhttpJson[configKey::xhttpMode] = QStringLiteral("Packet-up");
-            } else if (mode == QLatin1String("stream-up")) {
-                xhttpJson[configKey::xhttpMode] = QStringLiteral("Stream-up");
-            } else if (mode == QLatin1String("stream-one")) {
-                xhttpJson[configKey::xhttpMode] = QStringLiteral("Stream-one");
-            } else {
-                xhttpJson[configKey::xhttpMode] = mode;
-            }
-        }
-        if (xhttpObj.contains(QStringLiteral("host"))) {
-            xhttpJson[configKey::xhttpHost] = xhttpObj.value(QStringLiteral("host")).toString();
-        }
-        if (xhttpObj.contains(QStringLiteral("path"))) {
-            xhttpJson[configKey::xhttpPath] = xhttpObj.value(QStringLiteral("path")).toString();
-        }
-        if (xhttpObj.contains(QStringLiteral("uplinkHTTPMethod"))) {
-            xhttpJson[configKey::xhttpUplinkMethod] = xhttpObj.value(QStringLiteral("uplinkHTTPMethod")).toString();
-        }
-        xhttpJson[configKey::xhttpDisableGrpc] = xhttpObj.value(QStringLiteral("noGRPCHeader")).toBool(true);
-        xhttpJson[configKey::xhttpDisableSse] = xhttpObj.value(QStringLiteral("noSSEHeader")).toBool(true);
-        srv.xhttp = XrayXhttpConfig::fromJson(xhttpJson);
-    }
-
-    if (srv.transport == QLatin1String("mkcp")) {
-        const QJsonObject kcpObj = streamSettings.value(QStringLiteral("kcpSettings")).toObject();
-        XrayMkcpConfig mk;
-        if (kcpObj.contains(QStringLiteral("tti"))) {
-            mk.tti = QString::number(kcpObj.value(QStringLiteral("tti")).toInt());
-        }
-        if (kcpObj.contains(QStringLiteral("uplinkCapacity"))) {
-            mk.uplinkCapacity = QString::number(kcpObj.value(QStringLiteral("uplinkCapacity")).toInt());
-        }
-        if (kcpObj.contains(QStringLiteral("downlinkCapacity"))) {
-            mk.downlinkCapacity = QString::number(kcpObj.value(QStringLiteral("downlinkCapacity")).toInt());
-        }
-        if (kcpObj.contains(QStringLiteral("readBufferSize"))) {
-            mk.readBufferSize = QString::number(kcpObj.value(QStringLiteral("readBufferSize")).toInt());
-        }
-        if (kcpObj.contains(QStringLiteral("writeBufferSize"))) {
-            mk.writeBufferSize = QString::number(kcpObj.value(QStringLiteral("writeBufferSize")).toInt());
-        }
-        if (kcpObj.contains(QStringLiteral("congestion"))) {
-            mk.congestion = kcpObj.value(QStringLiteral("congestion")).toBool(true);
-        }
-        srv.mkcp = mk;
-    }
-
-    needsClientHydration = false;
-    return true;
+    
+    return config;
 }

 bool XrayProtocolConfig::hasClientConfig() const
@@ -639,7 +173,7 @@ bool XrayProtocolConfig::hasClientConfig() const
    return clientConfig.has_value();
 }

-void XrayProtocolConfig::setClientConfig(const XrayClientConfig &config)
+void XrayProtocolConfig::setClientConfig(const XrayClientConfig& config)
 {
    clientConfig = config;
 }
@@ -650,3 +184,4 @@ void XrayProtocolConfig::clearClientConfig()
 }

 } // namespace amnezia
+
--- a/client/core/models/protocols/xrayProtocolConfig.h
+++ b/client/core/models/protocols/xrayProtocolConfig.h
@@ -2,148 +2,47 @@
 #define XRAYPROTOCOLCONFIG_H

 #include <QJsonObject>
-#include "core/utils/constants/protocolConstants.h"
 #include <QString>
 #include <optional>

 namespace amnezia
 {

-// ── xPadding ─────────────────────────────────────────────────────────────────
-struct XrayXPaddingConfig {
-    QString bytesMin;                   // xPaddingBytes min
-    QString bytesMax;                   // xPaddingBytes max
-    bool    obfsMode = true;            // xPaddingObfsMode
-    QString key;                        // xPaddingKey
-    QString header;                     // xPaddingHeader
-    QString placement = protocols::xray::defaultXPaddingPlacement; // xPaddingPlacement: Cookie|Header|Query|Body
-    QString method = protocols::xray::defaultXPaddingMethod;       // xPaddingMethod: Repeat-x|Random|Zero
-
-    QJsonObject toJson() const;
-    static XrayXPaddingConfig fromJson(const QJsonObject &json);
-};
-
-// ── xmux ─────────────────────────────────────────────────────────────────────
-struct XrayXmuxConfig {
-    bool    enabled = true;
-
-    QString maxConcurrencyMin   = "0";
-    QString maxConcurrencyMax   = "0";
-    QString maxConnectionsMin   = "0";
-    QString maxConnectionsMax   = "0";
-    QString cMaxReuseTimesMin   = "0";
-    QString cMaxReuseTimesMax   = "0";
-    QString hMaxRequestTimesMin = "0";
-    QString hMaxRequestTimesMax = "0";
-    QString hMaxReusableSecsMin = "0";
-    QString hMaxReusableSecsMax = "0";
-    QString hKeepAlivePeriod;
-
-    QJsonObject toJson() const;
-    static XrayXmuxConfig fromJson(const QJsonObject &json);
-};
-
-// ── XHTTP transport ───────────────────────────────────────────────────────────
-struct XrayXhttpConfig {
-    QString mode             = protocols::xray::defaultXhttpMode;  // Auto|Packet-up|Stream-up|Stream-one
-    QString host             = protocols::xray::defaultXhttpHost;
-    QString path;
-    QString headersTemplate  = protocols::xray::defaultXhttpHeadersTemplate;  // HTTP|None
-    QString uplinkMethod     = protocols::xray::defaultXhttpUplinkMethod;  // POST|PUT|PATCH
-    bool    disableGrpc      = true;
-    bool    disableSse       = true;
-
-    // Session & Sequence
-    QString sessionPlacement = protocols::xray::defaultXhttpSessionPlacement;
-    QString sessionKey       = protocols::xray::defaultXhttpSessionKey;
-    QString seqPlacement     = protocols::xray::defaultXhttpSeqPlacement;
-    QString seqKey;
-    QString uplinkDataPlacement = protocols::xray::defaultXhttpUplinkDataPlacement;
-    QString uplinkDataKey;
-
-    // Traffic Shaping
-    QString uplinkChunkSize       = protocols::xray::defaultXhttpUplinkChunkSize;
-    QString scMaxBufferedPosts;
-    QString scMaxEachPostBytesMin = protocols::xray::defaultXhttpScMaxEachPostBytesMin;
-    QString scMaxEachPostBytesMax = protocols::xray::defaultXhttpScMaxEachPostBytesMax;
-    QString scMinPostsIntervalMsMin = protocols::xray::defaultXhttpScMinPostsIntervalMsMin;
-    QString scMinPostsIntervalMsMax = protocols::xray::defaultXhttpScMinPostsIntervalMsMax;
-    QString scStreamUpServerSecsMin = protocols::xray::defaultXhttpScStreamUpServerSecsMin;
-    QString scStreamUpServerSecsMax = protocols::xray::defaultXhttpScStreamUpServerSecsMax;
-
-    XrayXPaddingConfig xPadding;
-    XrayXmuxConfig     xmux;
-
-    QJsonObject toJson() const;
-    /// Reads only keys present in JSON (no Amnezia UI defaults). Use XrayConfigModel::applyDefaultsToServerConfig for UI.
-    static XrayXhttpConfig fromJson(const QJsonObject &json);
-};
-
-// ── mKCP transport ────────────────────────────────────────────────────────────
-struct XrayMkcpConfig {
-    QString tti;
-    QString uplinkCapacity;
-    QString downlinkCapacity;
-    QString readBufferSize;
-    QString writeBufferSize;
-    bool    congestion = true;
-
-    QJsonObject toJson() const;
-    static XrayMkcpConfig fromJson(const QJsonObject &json);
-};
-
-// ── Server config (settings editable by user) ─────────────────────────────────
 struct XrayServerConfig {
    QString port;
    QString transportProto;
    QString subnetAddress;
    QString site;
    bool isThirdPartyConfig = false;
-
-    QString security;
-    QString flow;
-    QString fingerprint;
-    QString sni;
-    QString alpn;
-
-    QString transport;
-    XrayXhttpConfig xhttp;
-    XrayMkcpConfig mkcp;
-
+    
    QJsonObject toJson() const;
-
-    static XrayServerConfig fromJson(const QJsonObject &json);
-
-    bool hasEqualServerSettings(const XrayServerConfig &other) const;
+    static XrayServerConfig fromJson(const QJsonObject& json);
+    
+    bool hasEqualServerSettings(const XrayServerConfig& other) const;
 };

-// ── Client config (generated, not edited by user) ─────────────────────────────
 struct XrayClientConfig {
    QString nativeConfig;
    QString localPort;
    QString id;
-
+    
    QJsonObject toJson() const;
-    static XrayClientConfig fromJson(const QJsonObject &json);
+    static XrayClientConfig fromJson(const QJsonObject& json);
 };

-// ── Top-level protocol config ──────────────────────────────────────────────────
 struct XrayProtocolConfig {
    XrayServerConfig serverConfig;
    std::optional<XrayClientConfig> clientConfig;
-
+    
    QJsonObject toJson() const;
-    static XrayProtocolConfig fromJson(const QJsonObject &json);
-
+    static XrayProtocolConfig fromJson(const QJsonObject& json);
+    
    bool hasClientConfig() const;
-    void setClientConfig(const XrayClientConfig &config);
+    void setClientConfig(const XrayClientConfig& config);
    void clearClientConfig();
-
-    bool needsClientHydration = false;
-
-    bool hydrateServerConfigFromClientNative();
 };

 } // namespace amnezia

 #endif // XRAYPROTOCOLCONFIG_H
+
--- a/client/core/models/selfhosted/nativeServerConfig.cpp
+++ b/client/core/models/selfhosted/nativeServerConfig.cpp
@@ -9,7 +9,6 @@
 #include "core/protocols/protocolUtils.h"
 #include "core/utils/constants/configKeys.h"
 #include "core/utils/constants/protocolConstants.h"
-#include "core/utils/networkUtilities.h"

 namespace amnezia
 {
@@ -29,25 +28,6 @@ ContainerConfig NativeServerConfig::containerConfig(DockerContainer container) c
    return containers.value(container);
 }

-void NativeServerConfig::updateContainerConfig(DockerContainer container, const ContainerConfig &config)
-{
-    containers[container] = config;
-}
-
-QPair<QString, QString> NativeServerConfig::getDnsPair(const QString &primaryDns, const QString &secondaryDns) const
-{
-    QString d1 = dns1;
-    QString d2 = dns2;
-
-    if (d1.isEmpty() || !NetworkUtilities::checkIPv4Format(d1)) {
-        d1 = primaryDns;
-    }
-    if (d2.isEmpty() || !NetworkUtilities::checkIPv4Format(d2)) {
-        d2 = secondaryDns;
-    }
-    return { d1, d2 };
-}
-
 QJsonObject NativeServerConfig::toJson() const
 {
    QJsonObject obj;
@@ -55,6 +35,9 @@ QJsonObject NativeServerConfig::toJson() const
    if (!description.isEmpty()) {
        obj[configKey::description] = this->description;
    }
+    if (!displayName.isEmpty()) {
+        obj[configKey::displayName] = displayName;
+    }
    if (!hostName.isEmpty()) {
        obj[configKey::hostName] = hostName;
    }
@@ -87,6 +70,7 @@ NativeServerConfig NativeServerConfig::fromJson(const QJsonObject& json)
    NativeServerConfig config;
    
    config.description = json.value(configKey::description).toString();
+    config.displayName = json.value(configKey::displayName).toString();
    config.hostName = json.value(configKey::hostName).toString();
    
    QJsonArray containersArray = json.value(configKey::containers).toArray();
--- a/client/core/models/selfhosted/nativeServerConfig.h
+++ b/client/core/models/selfhosted/nativeServerConfig.h
@@ -3,7 +3,6 @@

 #include <QJsonObject>
 #include <QMap>
-#include <QPair>

 #include "core/utils/containerEnum.h"
 #include "core/utils/containers/containerUtils.h"
@@ -26,11 +25,6 @@ struct NativeServerConfig {
    
    bool hasContainers() const;
    ContainerConfig containerConfig(DockerContainer container) const;
-
-    void updateContainerConfig(DockerContainer container, const ContainerConfig &config);
-
-    QPair<QString, QString> getDnsPair(const QString &primaryDns, const QString &secondaryDns) const;
-
    QJsonObject toJson() const;
    static NativeServerConfig fromJson(const QJsonObject& json);
 };
--- a/client/core/models/selfhosted/selfHostedAdminServerConfig.cpp
+++ b/client/core/models/selfhosted/selfHostedAdminServerConfig.cpp
@@ -87,6 +87,9 @@ QJsonObject SelfHostedAdminServerConfig::toJson() const
    if (!description.isEmpty()) {
        obj[configKey::description] = this->description;
    }
+    if (!displayName.isEmpty()) {
+        obj[configKey::displayName] = displayName;
+    }
    if (!hostName.isEmpty()) {
        obj[configKey::hostName] = hostName;
    }
@@ -129,6 +132,7 @@ SelfHostedAdminServerConfig SelfHostedAdminServerConfig::fromJson(const QJsonObj
    SelfHostedAdminServerConfig config;

    config.description = json.value(configKey::description).toString();
+    config.displayName = json.value(configKey::displayName).toString();
    config.hostName = json.value(configKey::hostName).toString();

    QJsonArray containersArray = json.value(configKey::containers).toArray();
--- a/client/core/models/selfhosted/selfHostedUserServerConfig.cpp
+++ b/client/core/models/selfhosted/selfHostedUserServerConfig.cpp
@@ -8,7 +8,6 @@
 #include "core/utils/containerEnum.h"
 #include "core/utils/containers/containerUtils.h"
 #include "core/utils/protocolEnum.h"
-#include "core/utils/networkUtilities.h"

 namespace amnezia
 {
@@ -43,26 +42,6 @@ ContainerConfig SelfHostedUserServerConfig::containerConfig(DockerContainer cont
    return containers.value(container);
 }

-void SelfHostedUserServerConfig::updateContainerConfig(DockerContainer container, const ContainerConfig &config)
-{
-    containers[container] = config;
-}
-
-QPair<QString, QString> SelfHostedUserServerConfig::getDnsPair(const QString &primaryDns,
-                                                               const QString &secondaryDns) const
-{
-    QString d1 = dns1;
-    QString d2 = dns2;
-
-    if (d1.isEmpty() || !NetworkUtilities::checkIPv4Format(d1)) {
-        d1 = primaryDns;
-    }
-    if (d2.isEmpty() || !NetworkUtilities::checkIPv4Format(d2)) {
-        d2 = secondaryDns;
-    }
-    return { d1, d2 };
-}
-
 QJsonObject SelfHostedUserServerConfig::toJson() const
 {
    QJsonObject obj;
@@ -70,6 +49,9 @@ QJsonObject SelfHostedUserServerConfig::toJson() const
    if (!description.isEmpty()) {
        obj[configKey::description] = this->description;
    }
+    if (!displayName.isEmpty()) {
+        obj[configKey::displayName] = displayName;
+    }
    if (!hostName.isEmpty()) {
        obj[configKey::hostName] = hostName;
    }
@@ -102,6 +84,7 @@ SelfHostedUserServerConfig SelfHostedUserServerConfig::fromJson(const QJsonObjec
    SelfHostedUserServerConfig config;

    config.description = json.value(configKey::description).toString();
+    config.displayName = json.value(configKey::displayName).toString();
    config.hostName = json.value(configKey::hostName).toString();

    QJsonArray containersArray = json.value(configKey::containers).toArray();
--- a/client/core/models/selfhosted/selfHostedUserServerConfig.h
+++ b/client/core/models/selfhosted/selfHostedUserServerConfig.h
@@ -3,7 +3,6 @@

 #include <QJsonObject>
 #include <QMap>
-#include <QPair>
 #include <optional>

 #include "core/utils/containerEnum.h"
@@ -31,11 +30,6 @@ struct SelfHostedUserServerConfig {
    std::optional<ServerCredentials> credentials() const;
    bool hasContainers() const;
    ContainerConfig containerConfig(DockerContainer container) const;
-
-    void updateContainerConfig(DockerContainer container, const ContainerConfig &config);
-
-    QPair<QString, QString> getDnsPair(const QString &primaryDns, const QString &secondaryDns) const;
-
    QJsonObject toJson() const;
    static SelfHostedUserServerConfig fromJson(const QJsonObject &json);
 };
--- a/client/core/protocols/openVpnProtocol.cpp
+++ b/client/core/protocols/openVpnProtocol.cpp
@@ -39,44 +39,33 @@ QString OpenVpnProtocol::defaultConfigPath()
    return p;
 }

-void OpenVpnProtocol::cleanupResources()
+void OpenVpnProtocol::stop()
 {
-    if (m_openVpnProcess || openVpnProcessIsRunning()) {
+    qDebug() << "OpenVpnProtocol::stop()";
+    setConnectionState(Vpn::ConnectionState::Disconnecting);
+
+    // TODO: need refactoring
+    // sendTermSignal() will even return true while server connected ???
+    if ((m_connectionState == Vpn::ConnectionState::Preparing) || (m_connectionState == Vpn::ConnectionState::Connecting)
+        || (m_connectionState == Vpn::ConnectionState::Connected)
+        || (m_connectionState == Vpn::ConnectionState::Reconnecting)) {
        if (!sendTermSignal()) {
            killOpenVpnProcess();
        }
        QThread::msleep(10);
+        m_managementServer.stop();
    }
-    m_managementServer.stop();

 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX) || defined(Q_OS_MACOS)
    IpcClient::withInterface([](QSharedPointer<IpcInterfaceReplica> iface) {
        QRemoteObjectPendingReply<bool> reply = iface->disableKillSwitch();
        if (!reply.waitForFinished(1000) && !reply.returnValue()) {
-            qWarning() << "OpenVpnProtocol::cleanupResources(): Failed to disable killswitch";
+            qWarning() << "OpenVpnProtocol::stop(): Failed to disable killswitch";
        }
    });
 #endif
-}

-void OpenVpnProtocol::stop()
-{
-    qDebug() << "OpenVpnProtocol::stop()";
-
-    const bool wasActive = m_connectionState == Vpn::ConnectionState::Preparing
-            || m_connectionState == Vpn::ConnectionState::Connecting
-            || m_connectionState == Vpn::ConnectionState::Connected
-            || m_connectionState == Vpn::ConnectionState::Reconnecting;
-
-    if (wasActive) {
-        setConnectionState(Vpn::ConnectionState::Disconnecting);
-    }
-
-    cleanupResources();
-
-    if (wasActive || m_connectionState == Vpn::ConnectionState::Disconnecting) {
-        setConnectionState(Vpn::ConnectionState::Disconnected);
-    }
+    setConnectionState(Vpn::ConnectionState::Disconnected);
 }

 ErrorCode OpenVpnProtocol::prepare()
@@ -179,7 +168,7 @@ void OpenVpnProtocol::updateRouteGateway(QString line)

 ErrorCode OpenVpnProtocol::start()
 {
-    cleanupResources();
+    OpenVpnProtocol::stop();

    if (!QFileInfo::exists(configPath())) {
        setLastError(ErrorCode::OpenVpnConfigMissing);
--- a/client/core/protocols/openVpnProtocol.h
+++ b/client/core/protocols/openVpnProtocol.h
@@ -29,7 +29,6 @@ protected slots:
    void onReadyReadDataFromManagementServer();

 private:
-    void cleanupResources();
    QString configPath() const;
    bool openVpnProcessIsRunning() const;
    bool sendTermSignal();
--- a/client/core/protocols/protocolUtils.cpp
+++ b/client/core/protocols/protocolUtils.cpp
@@ -68,10 +68,7 @@ QMap<Proto, QString> ProtocolUtils::protocolHumanNames()
             { Proto::TorWebSite, "Website in Tor network" },
             { Proto::Dns, "DNS Service" },
             { Proto::Sftp, QObject::tr("SFTP service") },
-             { Proto::Socks5Proxy, QObject::tr("SOCKS5 proxy server") },
-             { Proto::MtProxy, QObject::tr("MTProxy (Telegram)") },
-             { Proto::Telemt, QObject::tr("Telemt (Telegram)") },
-    };
+             { Proto::Socks5Proxy, QObject::tr("SOCKS5 proxy server") } };
 }

 QMap<Proto, QString> ProtocolUtils::protocolDescriptions()
@@ -95,8 +92,6 @@ ServiceType ProtocolUtils::protocolService(Proto p)
    case Proto::Dns: return ServiceType::Other;
    case Proto::Sftp: return ServiceType::Other;
    case Proto::Socks5Proxy: return ServiceType::Other;
-    case Proto::MtProxy: return ServiceType::Other;
-    case Proto::Telemt: return ServiceType::Other;
    default: return ServiceType::Other;
    }
 }
@@ -109,8 +104,6 @@ int ProtocolUtils::getPortForInstall(Proto p)
    case OpenVpn:
    case Socks5Proxy:
        return QRandomGenerator::global()->bounded(30000, 50000);
-    case MtProxy:
-    case Telemt:
    default:
        return defaultPort(p);
    }
@@ -130,8 +123,6 @@ int ProtocolUtils::defaultPort(Proto p)
    case Proto::Dns: return 53;
    case Proto::Sftp: return 222;
    case Proto::Socks5Proxy: return 38080;
-    case Proto::MtProxy: return QString(protocols::mtProxy::defaultPort).toInt();
-    case Proto::Telemt: return QString(protocols::telemt::defaultPort).toInt();
    default: return -1;
    }
 }
@@ -150,8 +141,6 @@ bool ProtocolUtils::defaultPortChangeable(Proto p)
    case Proto::Dns: return false;
    case Proto::Sftp: return true;
    case Proto::Socks5Proxy: return true;
-    case Proto::MtProxy: return true;
-    case Proto::Telemt: return true;
    default: return false;
    }
 }
@@ -172,8 +161,6 @@ TransportProto ProtocolUtils::defaultTransportProto(Proto p)
    case Proto::Dns: return TransportProto::Udp;
    case Proto::Sftp: return TransportProto::Tcp;
    case Proto::Socks5Proxy: return TransportProto::Tcp;
-    case Proto::MtProxy: return TransportProto::Tcp;
-    case Proto::Telemt: return TransportProto::Tcp;
    default: return TransportProto::Udp;
    }
 }
@@ -193,10 +180,9 @@ bool ProtocolUtils::defaultTransportProtoChangeable(Proto p)
    case Proto::Dns: return false;
    case Proto::Sftp: return false;
    case Proto::Socks5Proxy: return false;
-    case Proto::MtProxy: return false;
-    case Proto::Telemt: return false;
    default: return false;
    }
+    return false;
 }

 QString ProtocolUtils::key_proto_config_data(Proto p)
@@ -222,3 +208,4 @@ QString ProtocolUtils::getProtocolVersionString(const QJsonObject &protocolConfi
    if (version == protocols::awg::awgV1_5) return QObject::tr(" (version 1.5)");
    return "";
 }
+
--- a/client/core/protocols/xrayProtocol.cpp
+++ b/client/core/protocols/xrayProtocol.cpp
@@ -2,7 +2,6 @@

 #include "core/protocols/protocolUtils.h"
 #include "core/utils/constants/configKeys.h"
-#include "core/utils/constants/protocolConstants.h"
 #include "core/utils/ipcClient.h"
 #include "core/utils/networkUtilities.h"
 #include "core/utils/serialization/serialization.h"
@@ -10,7 +9,6 @@

 #include <QCryptographicHash>
 #include <QJsonDocument>
-#include <QTimer>
 #include <QJsonObject>
 #include <QNetworkInterface>
 #include <QtCore/qlogging.h>
@@ -81,29 +79,12 @@ ErrorCode XrayProtocol::start()
    m_socksPassword = creds.password;
    m_socksPort = creds.port;

-    QString xrayConfigStr = QJsonDocument(m_xrayConfig).toJson(QJsonDocument::Compact);
+    const QString xrayConfigStr = QJsonDocument(m_xrayConfig).toJson(QJsonDocument::Compact);
    if (xrayConfigStr.isEmpty()) {
        qCritical() << "Xray config is empty";
        return ErrorCode::XrayExecutableCrashed;
    }

-    // Fix fingerprint: old configs may contain "Mozilla/5.0" which xray-core rejects.
-    // Replace with the correct default at runtime so stale stored configs still work.
-    if (xrayConfigStr.contains("Mozilla/5.0", Qt::CaseInsensitive)) {
-        xrayConfigStr.replace("Mozilla/5.0", amnezia::protocols::xray::defaultFingerprint,
-                              Qt::CaseInsensitive);
-        qDebug() << "XrayProtocol: patched legacy fingerprint to"
-                 << amnezia::protocols::xray::defaultFingerprint;
-    }
-
-    // Fix inbound listen address: old configs may use "10.33.0.2" which doesn't exist
-    // until TUN is created. xray must listen on 127.0.0.1 so tun2socks can connect.
-    if (xrayConfigStr.contains(amnezia::protocols::xray::defaultLocalAddr)) {
-        xrayConfigStr.replace(amnezia::protocols::xray::defaultLocalAddr,
-                              amnezia::protocols::xray::defaultLocalListenAddr);
-        qDebug() << "XrayProtocol: patched legacy inbound listen address to 127.0.0.1";
-    }
-
    return IpcClient::withInterface(
            [&](QSharedPointer<IpcInterfaceReplica> iface) {
                auto xrayStart = iface->xrayStart(xrayConfigStr);
@@ -207,33 +188,6 @@ ErrorCode XrayProtocol::startTun2Socks()
    connect(
            m_tun2socksProcess.data(), &IpcProcessInterfaceReplica::finished, this,
            [this](int exitCode, QProcess::ExitStatus exitStatus) {
-                // Check stdout for "resource busy" — the TUN device was not yet released
-                // by the previous tun2socks instance. Retry after a short delay.
-                bool resourceBusy = false;
-                if (m_tun2socksProcess) {
-                    auto readOut = m_tun2socksProcess->readAllStandardOutput();
-                    if (readOut.waitForFinished()) {
-                        resourceBusy = readOut.returnValue().contains("resource busy");
-                    }
-                }
-
-                if (resourceBusy && m_tun2socksRetryCount < maxTun2SocksRetries) {
-                    m_tun2socksRetryCount++;
-                    qWarning() << QString("Tun2socks: TUN resource busy, retrying (%1/%2) in %3ms...")
-                                      .arg(m_tun2socksRetryCount)
-                                      .arg(maxTun2SocksRetries)
-                                      .arg(tun2socksRetryDelayMs);
-                    QTimer::singleShot(tun2socksRetryDelayMs, this, [this]() {
-                        if (ErrorCode err = startTun2Socks(); err != ErrorCode::NoError) {
-                            stop();
-                            setLastError(err);
-                        }
-                    });
-                    return;
-                }
-
-                m_tun2socksRetryCount = 0;
-
                if (exitStatus == QProcess::ExitStatus::CrashExit) {
                    qCritical() << "Tun2socks process crashed!";
                } else {
--- a/client/core/protocols/xrayProtocol.h
+++ b/client/core/protocols/xrayProtocol.h
@@ -35,9 +35,6 @@ private:
    int m_socksPort = 10808;

    QSharedPointer<IpcProcessInterfaceReplica> m_tun2socksProcess;
-    int m_tun2socksRetryCount = 0;
-    static constexpr int maxTun2SocksRetries = 5;
-    static constexpr int tun2socksRetryDelayMs = 400;
 };

 #endif // XRAYPROTOCOL_H
--- a/client/core/repositories/secureAppSettingsRepository.cpp
+++ b/client/core/repositories/secureAppSettingsRepository.cpp
@@ -280,24 +280,6 @@ void SecureAppSettingsRepository::toggleDevGatewayEnv(bool enabled)
    setValue("Conf/devGatewayEnv", enabled);
 }

-QByteArray SecureAppSettingsRepository::readGatewayProxyUrls(const QString &cacheKey) const
-{
-    if (cacheKey.isEmpty()) {
-        return {};
-    }
-
-    return value(QStringLiteral("Conf/proxyUrls/") + cacheKey).toByteArray();
-}
-
-void SecureAppSettingsRepository::writeGatewayProxyUrls(const QString &cacheKey, const QByteArray &proxyUrlsEncrypted)
-{
-    if (cacheKey.isEmpty()) {
-        return;
-    }
-
-    setValue(QStringLiteral("Conf/proxyUrls/") + cacheKey, proxyUrlsEncrypted);
-}
-
 bool SecureAppSettingsRepository::isKillSwitchEnabled() const
 {
    return value("Conf/killSwitchEnabled", true).toBool();
@@ -444,17 +426,29 @@ void SecureAppSettingsRepository::clearSettings()
    emit settingsCleared();
 }

+QString SecureAppSettingsRepository::nextAvailableServerName() const
+{
+    int i = 0;
+    bool nameExist = false;
+
+    do {
+        i++;
+        nameExist = false;
+        QJsonArray servers = QJsonDocument::fromJson(value("Servers/serversList").toByteArray()).array();
+        for (const QJsonValue &server : servers) {
+            if (server.toObject().value(configKey::description).toString() == QString("Server") + " " + QString::number(i)) {
+                nameExist = true;
+                break;
+            }
+        }
+    } while (nameExist);
+
+    return QString("Server") + " " + QString::number(i);
+}
+
 void SecureAppSettingsRepository::setInstallationUuid(const QString &uuid)
 {
    m_settings->setValue("Conf/installationUuid", uuid);
 }

-QByteArray SecureAppSettingsRepository::xraySavedConfigs() const
-{
-    return value("Xray/savedConfigs").toByteArray();
-}

-void SecureAppSettingsRepository::setXraySavedConfigs(const QByteArray &data)
-{
-    setValue("Xray/savedConfigs", data);
-}
--- a/client/core/repositories/secureAppSettingsRepository.h
+++ b/client/core/repositories/secureAppSettingsRepository.h
@@ -59,9 +59,7 @@ public:
    void setDevGatewayEndpoint();
    bool isDevGatewayEnv(bool isTestPurchase = false) const;
    void toggleDevGatewayEnv(bool enabled);
-    QByteArray readGatewayProxyUrls(const QString &cacheKey) const;
-    void writeGatewayProxyUrls(const QString &cacheKey, const QByteArray &proxyUrlsEncrypted);
-
+    
    bool isKillSwitchEnabled() const;
    void setKillSwitchEnabled(bool enabled);
    bool isStrictKillSwitchEnabled() const;
@@ -92,8 +90,7 @@ public:
    bool restoreAppConfig(const QByteArray &cfg);
    void clearSettings();

-    QByteArray xraySavedConfigs() const;
-    void setXraySavedConfigs(const QByteArray &data);
+    QString nextAvailableServerName() const;

 signals:
    void appLanguageChanged(QLocale locale);
--- a/client/core/repositories/secureServersRepository.cpp
+++ b/client/core/repositories/secureServersRepository.cpp
@@ -3,7 +3,6 @@
 #include <QJsonArray>
 #include <QJsonDocument>
 #include <QJsonValue>
-#include <QSet>
 #include <QUuid>

 #include "core/utils/serverConfigUtils.h"
@@ -33,45 +32,6 @@ QJsonObject embedStorageServerId(const QString &serverId, const QJsonObject &pay
    return o;
 }

-QString storedServerDisplayName(const SecureServersRepository *repository, const QString &serverId)
-{
-    using Kind = serverConfigUtils::ConfigType;
-    switch (repository->serverKind(serverId)) {
-    case Kind::SelfHostedAdmin:
-        if (const auto cfg = repository->selfHostedAdminConfig(serverId)) {
-            return cfg->displayName;
-        }
-        break;
-    case Kind::SelfHostedUser:
-        if (const auto cfg = repository->selfHostedUserConfig(serverId)) {
-            return cfg->displayName;
-        }
-        break;
-    case Kind::Native:
-        if (const auto cfg = repository->nativeConfig(serverId)) {
-            return cfg->displayName;
-        }
-        break;
-    case Kind::AmneziaPremiumV2:
-    case Kind::AmneziaFreeV3:
-    case Kind::ExternalPremium:
-        if (const auto cfg = repository->apiV2Config(serverId)) {
-            return cfg->displayName;
-        }
-        break;
-    case Kind::AmneziaPremiumV1:
-    case Kind::AmneziaFreeV2:
-        if (const auto cfg = repository->legacyApiConfig(serverId)) {
-            return cfg->displayName;
-        }
-        break;
-    case Kind::Invalid:
-    default:
-        break;
-    }
-    return {};
-}
-
 } // namespace

 SecureServersRepository::SecureServersRepository(SecureQSettings *settings, QObject *parent)
@@ -193,28 +153,6 @@ void SecureServersRepository::clearServers()
    syncToStorage();
 }

-QString SecureServersRepository::nextAvailableServerName() const
-{
-    QSet<QString> usedNames;
-    usedNames.reserve(m_orderedServerIds.size());
-
-    for (const QString &serverId : m_orderedServerIds) {
-        const QString displayName = storedServerDisplayName(this, serverId);
-        if (!displayName.isEmpty()) {
-            usedNames.insert(displayName);
-        }
-    }
-
-    int i = 0;
-    QString candidate;
-    do {
-        ++i;
-        candidate = tr("Server") + QLatin1Char(' ') + QString::number(i);
-    } while (usedNames.contains(candidate));
-
-    return candidate;
-}
-
 QString SecureServersRepository::addServer(const QString &serverId, const QJsonObject &serverJson, serverConfigUtils::ConfigType kind)
 {
    const QString id = normalizedOrGeneratedServerId(serverId);
--- a/client/core/repositories/secureServersRepository.h
+++ b/client/core/repositories/secureServersRepository.h
@@ -48,8 +48,6 @@ public:

    void clearServers();

-    QString nextAvailableServerName() const;
-
    void invalidateCache();

 signals:
--- a/client/core/utils/api/apiUtils.cpp
+++ b/client/core/utils/api/apiUtils.cpp
@@ -2,6 +2,7 @@

 #include "core/utils/serverConfigUtils.h"
 #include "core/utils/constants/configKeys.h"
+#include <QLatin1Char>
 #include <QDateTime>
 #include <QJsonDocument>
 #include <QJsonObject>
@@ -84,14 +85,15 @@ amnezia::ErrorCode apiUtils::checkNetworkReplyErrors(const QList<QSslError> &ssl
    const int httpStatusCodeNotFound = 404;
    const int httpStatusCodeNotImplemented = 501;
    const int httpStatusCodePaymentRequired = 402;
-    const int httpStatusCodeTooManyRequests = 429;
-    const int httpStatusCodeRequestTimeout = 408;
    const int httpStatusCodeUnprocessableEntity = 422;

    if (!sslErrors.empty()) {
        qDebug().noquote() << sslErrors;
        return amnezia::ErrorCode::ApiConfigSslError;
    }
+    if (replyError == QNetworkReply::NoError) {
+        return amnezia::ErrorCode::NoError;
+    }
    if (replyError == QNetworkReply::NetworkError::OperationCanceledError
        || replyError == QNetworkReply::NetworkError::TimeoutError) {
        qDebug() << replyError;
@@ -102,14 +104,14 @@ amnezia::ErrorCode apiUtils::checkNetworkReplyErrors(const QList<QSslError> &ssl
        return amnezia::ErrorCode::ApiUpdateRequestError;
    }

+    qDebug() << QString::fromUtf8(responseBody);
+    qDebug() << replyError;
+    qDebug() << httpStatusCode;
+
    QJsonDocument jsonDoc = QJsonDocument::fromJson(responseBody);
    if (jsonDoc.isObject()) {
        QJsonObject jsonObj = jsonDoc.object();
        const int httpStatusFromBody = jsonObj.value(QStringLiteral("http_status")).toInt(-1);
-
-        if (httpStatusFromBody == httpStatusCodeTooManyRequests) {
-            return amnezia::ErrorCode::ApiRateLimitError;
-        }
        if (httpStatusFromBody == httpStatusCodeConflict) {
            if (apiErrorMessageFromJson(jsonObj).contains(trialAlreadyUsedMessage, Qt::CaseInsensitive)) {
                return amnezia::ErrorCode::ApiTrialAlreadyUsedError;
@@ -119,9 +121,6 @@ amnezia::ErrorCode apiUtils::checkNetworkReplyErrors(const QList<QSslError> &ssl
        if (httpStatusFromBody == httpStatusCodeNotFound) {
            return amnezia::ErrorCode::ApiNotFoundError;
        }
-        if (httpStatusFromBody == httpStatusCodeRequestTimeout) {
-            return amnezia::ErrorCode::ApiConfigTimeoutError;
-        }
        if (httpStatusFromBody == httpStatusCodeNotImplemented) {
            return amnezia::ErrorCode::ApiUpdateRequestError;
        }
@@ -132,28 +131,9 @@ amnezia::ErrorCode apiUtils::checkNetworkReplyErrors(const QList<QSslError> &ssl
            return amnezia::ErrorCode::ApiConfigDownloadError;
        }
        if (httpStatusFromBody == httpStatusCodePaymentRequired) {
-            const QString message = apiErrorMessageFromJson(jsonObj);
-            if (message.contains(QLatin1String("refresh_captcha"), Qt::CaseInsensitive)) {
-                return amnezia::ErrorCode::ApiCaptchaRefreshError;
-            }
-            if (message.contains(QLatin1String("invalid_captcha"), Qt::CaseInsensitive)) {
-                return amnezia::ErrorCode::ApiCaptchaInvalidError;
-            }
-            if (jsonObj.contains(QStringLiteral("captcha_id")) || jsonObj.contains(QStringLiteral("captcha_image"))
-                || message.compare(QLatin1String("rate_limit_exceeded"), Qt::CaseInsensitive) == 0
-                || message.contains(QLatin1String("rate_limit_exceeded"), Qt::CaseInsensitive)) {
-                return amnezia::ErrorCode::ApiCaptchaRequiredError;
-            }
            return amnezia::ErrorCode::ApiSubscriptionNotActiveError;
        }
-
-        if (httpStatusFromBody >= 300) {
-            return amnezia::ErrorCode::ApiConfigDownloadError;
-        }
-    }
-
-    if (replyError == QNetworkReply::NoError) {
-        return amnezia::ErrorCode::NoError;
+        return amnezia::ErrorCode::ApiConfigDownloadError;
    }

    qDebug() << "something went wrong";
@@ -253,3 +233,18 @@ QString apiUtils::getPremiumV2VpnKey(const QJsonObject &serverConfigObject)

    return vpnKeyText;
 }
+
+QString apiUtils::countryCodeBaseForFlag(const QString &fullCountryCode)
+{
+    const QString trimmed = fullCountryCode.trimmed();
+    if (trimmed.isEmpty()) {
+        return QString();
+    }
+    const int dashIdx = trimmed.indexOf(QLatin1Char('-'));
+    const QString base = dashIdx < 0 ? trimmed : trimmed.left(dashIdx);
+    const QString normalized = base.trimmed();
+    if (normalized.isEmpty()) {
+        return QString();
+    }
+    return normalized.toUpper();
+}
--- a/client/core/utils/api/apiUtils.h
+++ b/client/core/utils/api/apiUtils.h
@@ -25,6 +25,9 @@ namespace apiUtils

    QString getPremiumV1VpnKey(const QJsonObject &serverConfigObject);
    QString getPremiumV2VpnKey(const QJsonObject &serverConfigObject);
+
+    // ISO2-style segment for flagKit assets (e.g. US-WEST -> US). Do not use in API request bodies.
+    QString countryCodeBaseForFlag(const QString &fullCountryCode);
 }

 #endif // APIUTILS_H
--- a/Show More
+++ b/Show More