---
weight: 4
title: Year 2024
search:
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menu:
  docs:
    identifier: vm-changelog-2024
    parent: vm-changelog
    weight: 4
tags:
  - metrics
aliases:
- /CHANGELOG_2024.html
- /changelog_2024
- /changelog/changelog_2024/index.html
- /changelog/changelog_2024/
---

## [v1.108.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.108.1)

Released at 2024-12-18

* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) properly apply `-relabelConfig` rules for data ingestion protocols. Issue was introduced at [v1.108.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.108.0) and only affects vmsingle.
  release. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7865) for details.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): make instant query results consistent. VictoriaMetrics detects and adjusts scrape interval and while this is very useful for range queries (i.e. this eliminates gaps on the graph), it may cause instant queries to return a non-empty result when no result is expected. The fix is to disable scrape interval detection and always use the step as the scrape interval in instant queries. This will guarantee that the samples are searched within the (time-step, time] interval. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5796) for details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix cursor reset in query input field. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7288).

## [v1.108.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.108.0)

Released at 2024-12-13

It is recommended upgrading to [v1.108.1](https://docs.victoriametrics.com/victoriametrics/changelog/#v11081) because [v1.108.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11080) contains a bug introduced at [v1.108.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11080), which incorrectly applies `-relabelConfig` rules at `vmsingle` components. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7865) for details.

**Update note 1: meaning of `-maxLabelsPerTimeseries` and `-maxLabelValueLen` has been changed. Previously, excessive labels, label names and values were truncated and could result in silent data collision. With the new change time series that are hitting the limits will be dropped instead. These events are reflected in logs and in `vm_rows_ignored_total` metric. The previous metrics `vm_too_long_label_values_total`, `vm_too_long_label_names_total`, `vm_metrics_with_dropped_labels_total` are deprecated.**

**Update note 2: `docker_sd_configs` now by default matches only first network if the container has multiple networks defined. This change aligns with Prometheus SD behavior. Please see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7398#issuecomment-2532668582) if you need to match multiple networks.**

* SECURITY: upgrade Go builder from Go1.23.3 to Go1.23.4. See the list of issues addressed in [Go1.23.4](https://github.com/golang/go/issues?q=milestone%3AGo1.23.4+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.3 to 3.21.0. See [alpine 3.21.0 release notes](https://alpinelinux.org/posts/Alpine-3.21.0-released.html).

* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): changes behaviour of meaning of `-maxLabelsPerTimeseries` and `-maxLabelValueLen` flag limits, time series that are hitting the limits will be dropped. And removes corresponding metrics `vm_too_long_label_values_total`, `vm_too_long_label_names_total`, `vm_metrics_with_dropped_labels_total`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6928).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support `-maxLabelsPerTimeseries`, `-maxLabelNameLen` and `-maxLabelValueLen` flags to limit amount of labels, label name and value length for pushed or scraped series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6928).
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): adds new values `[too_many_labels,too_long_label_name,too_long_label_value]` to `reason` label of the `vm_rows_ignored_total` exposed metric name. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6928).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add `match_first_network` support for docker service discovery. It uses the first network if the container has multiple networks defined. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7398).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): [Docker service discovery](https://docs.victoriametrics.com/victoriametrics/sd_configs/#docker_sd_configs) now supports containers discovery via [linked networks](https://docs.docker.com/reference/cli/docker/network/connect/#link). See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7626) for details.
* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): add `NodeBecomesReadonlyIn3Days` alert for detecting storages that will switch to read-only mode soon.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow to start `vmauth` with empty configuration file. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6467) for details.
* FEATURE: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): support debug mode for alerting rule. See [this doc](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/#debug-mode).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): update error messages for Clipboard API issues with docs links. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7677).

* BUGFIX: all VictoriaMetrics components: consistently deduplicate values with stale markers within deduplication interval. Previously, deduplication could randomly prefer stale marker or value on the deduplication interval. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7674) for details. Thanks to @tIGO for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7675).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add missing common service labels for docker swarm service discovery when `role` is set to `tasks`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7800).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly template rule annotations and labels with `define` and `block` template functions. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7771) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly reload external templates defined with `-rule.templates`. Previously `externalURL` function worked incorrectly. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7773) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fix requests routing by host when using `src_hosts`. Previously, request header could be ignored.See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7739) for details.
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): prevent backup scheduler from scheduling two backups immediately one after another.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly parse the query rollup window specified in milliseconds. Previous implementation could lead to precision issues resulting in the parsed window being smaller by 1ms. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5796) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly schedule historical data de-duplication at enterprise version with `-dedup.minScrapeInterval` configured. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7764) for details. Issue was introduced at [v1.106.1](https://docs.victoriametrics.com/victoriametrics/changelog/#v11061) release.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): prevent accordion from collapsing when selecting text in headers. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7742).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix query interval display in the instant query info. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7401).
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): respect `-search.skipSlowReplicas` when `-globalReplicationFactor` > 1. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6924).


## [v1.107.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.107.0)

Released at 2024-11-29

**Update note 1: cmd-line flags `-datasource.lookback`, `datasource.queryTimeAlignment` and `remoteRead.ignoreRestoreErrors` on [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) have been removed. Those flags were deprecated before [v1.101.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.101.0).**

* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add `Raw Query` tab for displaying raw data. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7024).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `dump_request_on_errors` bool setting to [auth config](https://docs.victoriametrics.com/victoriametrics/vmauth/#auth-config) for debugging HTTP requests that missed routing rules. This should improve debugability of vmauth settings.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `real_ip_header` setting to [ip_filters](https://docs.victoriametrics.com/victoriametrics/vmauth/#ip-filters) and corresponding global flag `httpRealIPHeader`. It allows `vmauth` obtain client IP from HTTP headers for filtering. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6883) for details.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): expose new metrics `vmauth_user_ip_denies_total`, `vmauth_global_ip_denies_total` and `vmauth_unauthorized_user_ip_denies_total` for `ip_filters`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6883) for details.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `dryRun` flag to validate configuration. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7505) for details.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `removeXFFHTTPHeaderValue` flag to remove content of `X-Forwarded-For` HTTP Header before proxy it to the backend. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6883) for details.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): revert the default value of `-remoteWrite.maxQueueSize` from `1_000_000` to `100_000`. It was bumped in [v1.104.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.104.0), which increases memory usage and is not needed for most setups. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7471).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add `ignore_first_sample_interval` param to [aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config). It allows users to control the time interval when aggregation skips sending aggregated samples to avoid unexpected spikes in values. By default, this interval is set to x2 of `staleness_interval`. The new setting is applicable only to `total`, `total_prometheus`, `increase`, `increase_prometheus` and `histogram_bucket` outputs. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7116) for details. Thanks to @iyuroch for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7313).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add support for template alias in predefined panels. This allows creating more readable metric names in the legend using constructions like `{{label_name}}`, where `label_name` is the name of the label. [See this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/116101da78a4dee8bd7c4ba0e66458fd05a10469#diff-95141489b32468cf852d2705d96eaa48c50a8b1cdd0424a29e7ca289912a6dcbR140-R151)

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly parse `multitenant` token value for multitenant endpoints. Before, pushing data into vmagent using [multitenant URL](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#url-format) resulted in unsupported path. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7694).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return `200 OK` HTTP status code when importing data via [Pushgateway protocol](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-data-in-prometheus-exposition-format) using [multitenant URL format](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#url-format). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3636) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7571).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `TCP` connection timeout for `Kubernetes API server` connection for metric scrapping with `kubernetes_sd_configs`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7127).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix the `resource_group` filter for Azure service discovery on virtual machine scale sets. Previously, this filter did not apply to virtual machine scale sets, causing all virtual machines to be discovered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7630).
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix possible runtime `panic` introduced at `v1.104.0` release. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly handle [multitenant](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels) query request errors and correctly perform search for available tenants. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details. This is follow-up after [v1.106.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.106.1) release changes.
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly set `multitenant` cache expiration duration with `search.tenantCacheExpireDuration`. Previously flag always used default value.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly init `ip_filters` for `unauthorized_user` config section. Previously it was ignored and `vmauth` didn't apply `ip_filter` for `unauthorized` access.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly return result for binary operation `^` aka pow at query requests for `NaN` values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7359) for details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix rendering of isolated data points on the graph that are not connected to other points.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix for `showLegend` and `alias` flags in predefined panels. [See this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7565)
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): improve the correctness of alert [state restoration](https://docs.victoriametrics.com/victoriametrics/vmalert/#alerts-state-on-restarts). Previously, it could result in false-positive alerts if alert was resolved shortly before vmalert restart.
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): exit immediately with error message if no test file is found under specified `-files`.
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): print an error message if no rule group is found in `rule_files`.

## [v1.106.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.106.1)

Released at 2024-11-15

It is recommended upgrading to [v1.107.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11070) because [v1.106.1](https://docs.victoriametrics.com/victoriametrics/changelog/#v11061) contains a bug introduced at [v1.104.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11040), which can lead to runtime panic at `vmselect` component. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.

* SECURITY: upgrade Go builder from Go1.23.1 to Go1.23.3. See the list of issues addressed in [Go1.23.2](https://github.com/golang/go/issues?q=milestone%3AGo1.23.2+label%3ACherryPickApproved) and [Go1.23.3](https://github.com/golang/go/issues?q=milestone%3AGo1.23.3+label%3ACherryPickApproved).

* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): reduces memory and CPU usage for high volume of triggered alerting rules. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6894) for details.

* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): drop rows that do not belong to the current series during import. The dropped rows should belong to another series whose tags are a superset of the current series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7301) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7330). Thanks to @dpedu for reporting and cooperating with the test.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): keep the order of resulting time series when `limit_offset` is applied. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7068).
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): properly handle xFilesFactor=0 for `transformRemoveEmptySeries` function. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7337) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fixed unauthorized routing behavior inconsistency. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7543) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly inherit [`drop_src_path_prefix_parts`](https://docs.victoriametrics.com/victoriametrics/vmauth/#dropping-request-path-prefix), [`load_balancing_policy`](https://docs.victoriametrics.com/victoriametrics/vmauth/#high-availability), [`retry_status_codes`](https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing) and [`discover_backend_ips`](https://docs.victoriametrics.com/victoriametrics/vmauth/#discovering-backend-ips) options by `url_map` entries if `url_prefix` option isn't set at the [user config level](https://docs.victoriametrics.com/victoriametrics/vmauth/#auth-config). These options were inherited only when the `url_prefix` option was set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7519).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly check availability of all the backends before giving up when proxying requests. Previously, vmauth could return an error even if there were healthy backends available. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3061) for details.
* BUGFIX: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): add `file` label filter to vmalert dashboard panels. Previously, metrics from groups with the same name but different rule files could be mixed in the results.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Optimize resources usage for configured [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling) with time-series filter. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7440) for details.
* BUGFIX: `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Properly return query results for search requests after index rotation. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7417) for details.
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Properly handle [multitenant](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels) query request errors and correctly perform search for available tenants. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.
* BUGFIX: `vmagent`, `vminsert` and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix a performance issue with tenant metrics counters across large numbers of tenants. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7482) for details.

## [v1.106.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.106.0)

Released at 2024-11-04

It is recommended upgrading to [v1.107.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11070) because [v1.106.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11060) contains a bug introduced at [v1.104.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11040), which can lead to runtime panic at `vmselect` component. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.

* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): support [VictoriaLogs](https://docs.victoriametrics.com/victorialogs/) as a datasource. See [this doc](https://docs.victoriametrics.com/victorialogs/vmalert/) for details.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): `-rule` cmd-line flag now supports multi-document YAML files. This could be useful when rules are retrieved via HTTP URL where multiple rule files were merged together in one response. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6753). Thanks to @Irene-123 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6995).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add service discovery support for [PuppetDB](https://www.puppet.com/docs/puppetdb/8/overview.html) resources. See [these docs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#puppetdb_sd_configs) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5744).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support scraping from Kubernetes Native Sidecars. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7287).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add `metric_relabel_configs` and `relabel_configs` to the `global` section of [scrape configuration](https://docs.victoriametrics.com/victoriametrics/vmagent/#how-to-collect-metrics-in-prometheus-format). Relabeling configuration specified in `global` section will be prepended to relabeling configs of all jobs. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6966) and [these docs](https://docs.victoriametrics.com/victoriametrics/relabeling/) for details.
* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards) for VM single-node, cluster, vmalert, vmagent, VictoriaLogs: add `Restarts` panel to show the events of process restarts. This panel should help correlate events of restart with unexpected behavior of processes.
* FEATURE: [alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-vmalert.yml): add alerting rule `RemoteWriteDroppingData` to track number of dropped samples that weren't sent to remote write URL.
* FEATURE: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): use `evaluation_interval` as default `interval` value in [test_group](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/#lttest_groupgt). This change aligns with promtool behavior.

* BUGFIX: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards) for Single-node VictoriaMetrics, cluster: The free disk space calculation now will subtract the size of the `-storage.minFreeDiskSpaceBytes` flag to correctly display the remaining available space of Single-node VictoriaMetrics/vmstorage rather than the actual available disk space, as well as the full ETA. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7334) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly set `group_name` and `file` fields for recording rules in `/api/v1/rules`.
* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): properly forward [multitenant](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy) requests with `-clusterMode`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7201) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent panic when ingesting samples which are outside of configured [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters). This could happen when backfilling data with retention filters which exclude samples from the backfill range.
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): fix issue with series matching for `vmctl vm-native` with `--vm-native-disable-per-metric-migration` flag enabled. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7309).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix the display of the link to vmalert. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5924).

## [v1.105.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.105.0)

Released at 2024-10-21

It is recommended upgrading to [v1.107.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11070) because [v1.105.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11050) contains a bug introduced at [v1.104.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11040), which can lead to runtime panic at `vmselect` component. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.

**Update note 1: `-search.maxUniqueTimeseries` limit on `vmselect` can no longer exceed `-search.maxUniqueTimeseries` limit on `vmstorage`. If you don't set this flag at `vmstorage`, then it will be automatically calculated based on available resources. This can result into rejecting expensive read queries if they exceed auto-calculated limit. The limit can be overridden by manually setting `-search.maxUniqueTimeseries` at vmstorage, but for better reliability we recommend sticking to default values. Refer to the CHANGELOG below and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6930).**

* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support of [exponential histograms](https://opentelemetry.io/docs/specs/otel/metrics/data-model/#exponentialhistogram) ingested via [OpenTelemetry protocol for metrics](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/). Such histograms will be automatically converted to [VictoriaMetrics histogram format](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350). See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6354).
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): automatically set `-search.maxUniqueTimeseries` limit based on available memory and `-search.maxConcurrentRequests`. The more memory is available to the process and the lower is `-search.maxConcurrentRequests`, the higher will be `-search.maxUniqueTimeseries` limit. This should protect vmstorage from expensive queries without the need to manually set `-search.maxUniqueTimeseries`. The calculated limit will be printed during process start-up logs and exposed as `vm_search_max_unique_timeseries` metric. Set `-search.maxUniqueTimeseries` manually to override auto calculation. Please note, `-search.maxUniqueTimeseries` on vmselect can't exceed the same name limit on vmstorage, it can only be set to lower values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6930).
* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): disable stream processing mode for data [ingested via InfluxDB](https://docs.victoriametrics.com/victoriametrics/integrations/influxdb/#influxdb-compatible-agents-such-as-telegraf) HTTP endpoints by default. With this change, the data is processed in batches (see `-influx.maxRequestSize`) and user will get parsing errors immediately as they happen. This also improves users' experience and resiliency against thundering herd problems caused by clients without backoff policies like telegraf. To enable stream mode back, pass HTTP header `Stream-Mode: 1` with each request. For data sent via TCP and UDP (see `-influxListenAddr`) protocols streaming processing remains enabled.
* FEATURE: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): set default value for `-search.maxUniqueTimeseries` to `0`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6930).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): allow using HTTP/2 client for Kubernetes service discovery if `-promscrape.kubernetes.useHTTP2Client` cmd-line flag is set. This could help to reduce the amount of opened connections to the Kubernetes API server. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5971) for the details.
* FEATURE: add Darwin binaries for [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) to the release flow. The binaries will be available in the new release.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): `-rule` cmd-line flag now supports multi-document YAML files. This could be useful when rules are retrieved via HTTP URL where multiple rule files were merged together in one response. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6753). Thanks to @Irene-123 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6995).
* FEATURE: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): allow parsing `scope` claim parsing in array format. This is useful for cases when identity provider does encode claims in array format.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add the ability to cancel running queries. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7097).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add playgrounds for [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters) and [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling) configurations. These new pages are available in vmui in the `Tools` section. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6304).

* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): fix possible panic during parsing of a token without `vm_access` claim. This issue was introduced in v1.104.0.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix error messages rendering from overflowing the screen with long messages. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7207).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly add metrics tags for `opentsdb` migration source. Previously it could have empty values. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7161).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): reduce the initial health check interval for datasource. This reduces the time spent on evaluating rules by vmalert-tool. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6970).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): allow specifying empty labels list `labels: '{}'` in the same way as promtool does. This improves compatibility between these tools.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support `m` unit for `minutes` duration in command-line flag `-streamAggr.dedupInterval`. Previously unit `m` wasn't supported correctly.
* BUGFIX: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply replication factor when storage node groups are used and replication factor is configured via global value such as `-replicationFactor=2`. Previously, global replication factor was ignored for storage node groups. See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmstorage-groups-at-vmselect) for more information about storage groups configuration.
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly process response in [multi-level cluster setup](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multi-level-cluster-setup). Before, vmselect could return no data in multi-level setup. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7270) for details. The issue was introduced in [v1.104.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11040).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly apply configuration changes during hot-reload to rule groups that haven't started yet. Previously, configuration updates to such groups could have resulted into blocking all evaluations within the group, until vmalert restart.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/)  and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly update `max_scrape_size` param change during [hot-reload](https://docs.victoriametrics.com/victoriametrics/vmagent/#configuration-update). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7260).

## [v1.104.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.104.0)

Released at 2024-10-02

It is recommended upgrading to [v1.107.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11070) because [v1.104.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11040) contains a bug, which can lead to runtime panic at `vmselect` component. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549) for details.

**Update note 1: `*.passwordFile` and similar flags are trimming trailing whitespaces at the end of content. If authorization check performed with `*.passwordFile` content, make sure to update authorization settings to not include trailing whitespaces before the upgrade. In case of [operator](https://docs.victoriametrics.com/operator/) managed installations, make sure to update operator version to [v0.48.*](https://docs.victoriametrics.com/operator/changelog/#v0480---25-sep-2024). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6986) for the details. This change reverts behavior introduced at [v1.102.0-rc2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc2) release**

* SECURITY: upgrade Go builder from Go1.23.0 to Go1.23.1. See the list of issues addressed in [Go1.23.1](https://github.com/golang/go/issues?q=milestone%3AGo1.23.1+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.2 to 3.20.3. See [alpine 3.20.3 release notes](https://alpinelinux.org/posts/Alpine-3.17.10-3.18.9-3.19.4-3.20.3-released.html).

* FEATURE: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add support for querying over multiple tenants. See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1434) for details.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): hide jobs that contain only healthy targets when `show_only_unhealthy` filter is enabled. Before, jobs without unhealthy targets were still displayed on the page. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3536).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add service discovery support for [OVH Cloud VPS](https://www.ovhcloud.com/en/vps/) and [OVH Cloud dedicated server](https://ovhcloud.com/en/bare-metal/). See [these docs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#ovhcloud_sd_configs) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6071).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): bump default values for sending data to `remoteWrite.url`: `remoteWrite.maxQueueSize` from `100_000` to `1_000_000`, `remoteWrite.maxBatchSize` from `1_000` to `10_000`, `remoteWrite.concurrency` from `1` to `4`. The new settings should improve remote write performance of vmalert with default settings.
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): introduce the `-search.maxDeleteSeries` command line flag to limit the number of series that can be deleted by a single `/api/v1/admin/tsdb/delete_series` call. Previously, one could delete any number of series and if this number was big (millions) the deletion could result in OOM. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7027) for details.
* FEATURE: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): add API for creating/scheduling backups. See [documentation](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/#api-methods)
* FEATURE: all VictoriaMetrics [enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/) components: add support of hot-reload for license key supplied by `-licenseFile` command-line flag.
* FEATURE: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): allow disabling `Bearer` prefix enforcement for authentication header. This is useful for cases when identity token is used instead of access token.
* FEATURE: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): support parsing `vm_access` claims in string format. This is useful for cases when identity provider does not support mapping claims to JSON format.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): respect `Retry-After` header when making retries for pushing the data to remote destination via remote write protocol. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6097).
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add new metrics for data ingestion: `vm_rows_received_by_storage_total`, `vm_rows_ignored_total{reason="invalid_raw_metric_name"}`, `vm_rows_ignored_total{reason="hourly_limit_exceeded"}`, `vm_rows_ignored_total{reason="daily_limit_exceeded"}`. See this [PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6663) for details.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): change request method for `/query_range` and `/query` calls from `GET` to `POST`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6288).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add link to vmalert when proxy is enabled. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5924).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): keep selected columns in table view on page reloads. Before, selected columns were reset on each update. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7016).
* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards) for VM single-node, cluster, vmalert, vmagent, VictoriaLogs: add `Go scheduling latency` panel to show the 99th quantile of Go goroutines scheduling. This panel should help identifying insufficient CPU resources for the service. It is especially useful if CPU gets throttled, which now should be visible on this panel.
* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): update  [dashboard for VictoriaMetrics k8s operator](https://grafana.com/grafana/dashboards/17869): replace deprecated TimeSeries panels, add latency panels for rest client and Golang scheduler, add overview panels. The dashboard is now also available for [VictoriaMetrics Grafana datasource](https://github.com/VictoriaMetrics/victoriametrics-datasource).
* FEATURE: [alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-health.yml): add alerting rule to track the Go scheduling latency for goroutines. It should notify users if VM component doesn't have enough CPU to run or gets throttled.

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink` in `Host:Port` format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6912).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly consume messages [from kafka](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/). Previously vmagent could skip some messages during start-up.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): perform deduplication for all received data when specifying `-streamAggr.dedupInterval` or `-remoteWrite.streamAggr.dedupInterval` command-line flags are set. Previously, if the `-remoteWrite.streamAggr.config` or `-streamAggr.config` is set, only series that matched aggregation config were deduplicated. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6711#issuecomment-2288361213) for details.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix  `-remoteWrite.streamAggr.dropInputLabels` labels parsing. Now, this flag allows specifying a list of labels to drop (by using '^^' separator, i.e. `dropInputLabels='replica^^az,replica'`) per each corresponding `remoteWrite.url`. Before, `-remoteWrite.streamAggr.dropInputLabels` labels were incorrectly applied to all configured `remoteWrite.url`s. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6780) for the details.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix duplicated aggregation results if there are multiple concurrent writing samples with the same label. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7118).
* BUGFIX: [vmagent dashboard](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/vmagent.json): fix legend captions for stream aggregation related panels. Before they were displaying wrong label names.
* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): add missing `datadog`, `newrelic`, `opentelemetry` and `pushgateway` routes to the `JWT` authorization routes. Allows prefixed (`prometheus/graphite`) routes for query requests.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly cache empty list of matching time series for the given [labels filter](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering). This type of caching was broken since [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0), which could result in the increased CPU usage when performing queries, which match zero time series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7009).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Fixes start-up crash on Windows OS. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6973) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric `vm_object_references{type="indexdb"}`. Previously, it was overcounted.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly ingest stale NaN samples. Previously it could be dropped if series didn't exist at storage node. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5069) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly track `vm_missing_tsids_for_metric_id_total` metric. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6931) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): do not send notifications without labels to Alertmanager. Such notifications are rejected by Alertmanager anyway. Before, vmalert could send alert notifications even if no label-value pairs left after applying `alert_relabel_configs` from [notifier config](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly update value of variable `$activeAt` in rules annotation during replay mode. Before, `$activeAt` could have provided incorrect values during replay.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle `c1 AND c2` and `c1 OR c1` queries for constants `c1` and `c2`. Previously such queries could return unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6637).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): consistently return the first non-`NaN` value from [`range_first`](https://docs.victoriametrics.com/victoriametrics/metricsql/#range_first) function across all the returned data points. Previously `NaN` data points weren't replaced with the first non-`NaN` value.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): consistently return the last non-`NaN` value from [`range_last`](https://docs.victoriametrics.com/victoriametrics/metricsql/#range_last) function across all the returned data points. Previously `NaN` data points weren't replaced with the last non-`NaN` value.
* BUGFIX: all VictoriaMetrics components: increase default value of `-loggerMaxArgLen` cmd-line flag from 1000 to 5000. This should improve visibility on errors produced by very long queries.
* BUGFIX: all VictoriaMetrics components: trim trailing spaces when reading content from `*.passwordFile` and similar flags. It reverts changes introduced at [v1.102.0-rc2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc2) release. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6986) for details.

## [v1.103.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.103.0)

Released at 2024-08-28

**Update note: The `external_labels` field in vmalert-tool [test file](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/#test-file-format) will be deprecated soon. Please use `-external.label` command-line flag instead, in the same way as vmalert uses it. This change is done for the sake of consistency between vmalert and vmalert-tool configuration. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6735).**

* FEATURE: add `/influx/health` health-check handler for Influx endpoints. This is needed as some clients use the health endpoint to determine if the server is healthy and ready for data ingestion. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6653) for the details.
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): add `--vm-backoff-retries`, `--vm-backoff-factor`, `--vm-backoff-min-duration` and `--vm-native-backoff-retries`, `--vm-native-backoff-factor`, `--vm-native-backoff-min-duration` command-line flags. These flags allow to change backoff policy config for import requests to VictoriaMetrics. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6622).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): allow overriding the `sample_limit` option at [scrape_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs) when a label `__sample_limit__` is specified for target. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6665). Thanks to @zoglam for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6666).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduce memory usage when scraping targets with big response body. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6759).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): stop adding default port 80/443 for scrape URLs without a port. The value in `instance` label will still carry port for backward compatibility. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6792).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add flags `-remoteWrite.retryMinInterval` and `-remoteWrite.retryMaxTime` for adjusting remote-write requests retry policy. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5486). Thanks to @yorik for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6289).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add command-line flag `-notifier.headers` to allow configuring additional headers for all requests sent to the corresponding `-notifier.url`.
* FEATURE: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): add `-external.label` and `-external.url` command-line flags, in the same way as these flags are supported by vmalert. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6735).
* FEATURE: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/), [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmrestore/), [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): use exponential backoff for retries when uploading or downloading data from S3. This should reduce the number of failed uploads and downloads when S3 is temporarily unavailable. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6732).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): do not allow enabling `-streamAggr.keepInput` and `keep_metric_names` options together in [stream aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config), as it may result in time series collision.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add search functionality to the column display settings in the table. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6668).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add the ability to select all columns in the column display settings of the table. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6668). Thanks to @yincongcyincong for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6680).
* FEATURE: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add command-line flag `-search.inmemoryBufSizeBytes` for configuring size of in-memory buffers used by vmselect during processing of vmstorage responses. A new summary metric `vm_tmp_blocks_inmemory_file_size_bytes` is exposed to show the size of the buffer during requests processing. See this [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6851) for details. Thanks to @tydhot for implementation.

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fixes `proxy_url` authorization for scrape targets. Previously proxy authorization configuration was ignored for `https` targets. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6771) issue for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect HTTP headers defined in [notifier configuration file](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file) for each request to notifiers. Previously, this param was ignored by mistake.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): correctly apply `-streamAggr.dropInputLabels` when global stream deduplication is enabled without `-streamAggr.config`. Previously, `-remoteWrite.streamAggr.dropInputLabels` was used instead.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix command-line flag `-remoteWrite.streamAggr.ignoreFirstIntervals` to accept multiple values and be applied per each corresponding `-remoteWrite.url`. Previously, this flag only could have been used globally for all URLs.
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): respect `-search.denyPartialResponse` cmd-line flag and `deny_partial_response` query GET param when serving requests via Graphite API. Before, partial responses were always denied. Thanks to @penguinlav for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6748).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): account for `-usePromCompatibleNaming` cmd-line flag during when pushing data to remote storages. Thanks to @12345XXX  for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6776).
* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): reduce CPU usage by limiting the number of concurrently running inserts. The issue was introduced in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/498fe1cfa523be5bfecaa372293c3cded85e75ab) starting from v1.101.0. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6733) issue for details.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): fix calculation [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. It was producing incorrect results in case lower buckets. The issue was introduced in [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release, see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6714) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/), [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/) and snapshot API: verify correctness of URLs provided via cmd-line flags before executing HTTP requests. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6740) issue for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): reduce memory usage when parsing responses with big number of metrics in response. The memory usage was increased in [v1.102.0-rc1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc1) after attempt to reduce CPU usage for heavy loaded vmalerts.
* BUGFIX: all VictoriaMetrics components: forcefully set owner/group for release tars to 1000:1000. This helps to avoid unpacking [issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6788) on systems with limitations around UID:GID configuration. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6846).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly register index metrics for previous index part. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6868) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Removes the fallback to global index search when the search using per-day index fails due to too many time series found (the global index will fail anyway with the same error and so the fallback is not needed and only slows down the search). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6836) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric names registering in the per-day index for new dates for existing time series when making calls to `/tags/tagSeries` and `/tags/tagMultiSeries` handlers of [Graphite API](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6872/) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly ignore deleted metrics when applying [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters) and [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6891) issue for the details.

## [v1.102.9](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.9)

Released at 2024-12-13

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* SECURITY: upgrade base docker image (Alpine) from 3.20.3 to 3.21.0. See [alpine 3.21.0 release notes](https://alpinelinux.org/posts/Alpine-3.21.0-released.html).
* SECURITY: upgrade Go builder from Go1.23.3 to Go1.23.4. See the list of issues addressed in [Go1.23.4](https://github.com/golang/go/issues?q=milestone%3AGo1.23.4+label%3ACherryPickApproved).

* BUGFIX: all VictoriaMetrics components: consistently deduplicate values with stale markers within deduplication interval. Previously, deduplication could randomly prefer stale marker or value on the deduplication interval. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7674) for details. Thanks to @tIGO for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7675).
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly parse the query rollup window specified in milliseconds. Previous implementation could lead to precision issues resulting in the parsed window being smaller by 1ms. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5796) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fix requests routing by host when using `src_hosts`. Previously, request header could be ignored.
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): prevent backup scheduler from scheduling two backups immediately one after another.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): prevent accordion from collapsing when selecting text in headers. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7742).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix query interval display in the instant query info. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7401).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add missing common service labels for docker swarm service discovery when `role` is set to `tasks`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7800).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix possible template collision between rule annotations.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix `externalURL` function in `-rule.templates` after config reload.
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): respect `-search.skipSlowReplicas` when `-globalReplicationFactor` > 1. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6924).

## [v1.102.8](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.8)

Released at 2024-11-29

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly parse `multitenant` token value for multitenant endpoints. Before, pushing data into vmagent using [multitenant URL](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#url-format) resulted in unsupported path. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7694).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return `200 OK` HTTP status code when importing data via [Pushgateway protocol](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-data-in-prometheus-exposition-format) using [multitenant URL format](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#url-format). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3636) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7571).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `TCP` connection timeout for `Kubernetes API server` connection for metric scrapping with `kubernetes_sd_configs`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7127).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix the `resource_group` filter for Azure service discovery on virtual machine scale sets. Previously, this filter did not apply to virtual machine scale sets, causing all virtual machines to be discovered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7630).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly init `ip_filters` for `unauthorized_user` config section. Previously it was ignored and `vmauth` didn't apply `ip_filter` for `unauthorized` access.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly return result for binary operation `^` aka pow at query requests for `NaN` values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7359) for details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix for `showLegend` and `alias` flags in predefined panels. [See this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7565)

## [v1.102.7](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.7)

Released at 2024-11-15

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* SECURITY: upgrade Go builder from Go1.23.1 to Go1.23.3. See the list of issues addressed in [Go1.23.2](https://github.com/golang/go/issues?q=milestone%3AGo1.23.2+label%3ACherryPickApproved) and [Go1.23.3](https://github.com/golang/go/issues?q=milestone%3AGo1.23.3+label%3ACherryPickApproved).

* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): drop rows that do not belong to the current series during import. The dropped rows should belong to another series whose tags are a superset of the current series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7301) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7330). Thanks to @dpedu for reporting and cooperating with the test.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): keep the order of resulting time series when `limit_offset` is applied. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7068).
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): properly handle xFilesFactor=0 for `transformRemoveEmptySeries` function. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7337) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly check availability of all the backends before giving up when proxying requests. Previously, vmauth could return an error even if there were healthy backends available. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3061) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fixed unauthorized routing behavior inconsistency. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7543) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly inherit [`drop_src_path_prefix_parts`](https://docs.victoriametrics.com/victoriametrics/vmauth/#dropping-request-path-prefix), [`load_balancing_policy`](https://docs.victoriametrics.com/victoriametrics/vmauth/#high-availability), [`retry_status_codes`](https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing) and [`discover_backend_ips`](https://docs.victoriametrics.com/victoriametrics/vmauth/#discovering-backend-ips) options by `url_map` entries if `url_prefix` option isn't set at the [user config level](https://docs.victoriametrics.com/victoriametrics/vmauth/#auth-config). These options were inherited only when the `url_prefix` option was set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7519).
* BUGFIX: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): add `file` label filter to vmalert dashboard panels. Previously, metrics from groups with the same name but different rule files could be mixed in the results.

## [v1.102.6](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.6)

Released at 2024-11-04

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly set `group_name` and `file` fields for recording rules in `/api/v1/rules`.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent panic when ingesting samples which are outside of configured [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters). This could happen when backfilling data with retention filters which exclude samples from the backfill range.
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): fix issue with series matching for `vmctl vm-native` with `--vm-native-disable-per-metric-migration` flag enabled. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7309).

## [v1.102.5](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.5)

Released at 2024-10-21

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix error messages rendering from overflowing the screen with long messages. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7207).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly add metrics tags for `opentsdb` migration source. Previously it could have empty values. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7161).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support `m` unit for `minutes` duration in command-line flag `-streamAggr.dedupInterval`. Previously unit `m` wasn't supported correctly.
* BUGFIX: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply replication factor when storage node groups are used and replication factor is configured via global value such as `-replicationFactor=2`. Previously, global replication factor was ignored for storage node groups. See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmstorage-groups-at-vmselect) for more information about storage groups configuration.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly apply configuration changes during hot-reload to rule groups that haven't started yet. Previously, configuration updates to such groups could have resulted into blocking all evaluations within the group, until vmalert restart.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/)  and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly update `max_scrape_size` param change during [hot-reload](https://docs.victoriametrics.com/victoriametrics/vmagent/#configuration-update). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7260).

## [v1.102.4](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.4)

Released at 2024-10-02

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix `-remoteWrite.streamAggr.dropInputLabels` labels parsing. Now, this flag allows specifying a list of labels to drop (by using '^^' separator, i.e. `dropInputLabels='replica^^az,replica'`) per each corresponding `remoteWrite.url`. Before, `-remoteWrite.streamAggr.dropInputLabels` labels were incorrectly applied to all configured `remoteWrite.url`s. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6780) for the details.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix duplicated aggregation results if there are multiple concurrent writing samples with the same label. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7118).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): consistently return the first non-`NaN` value from [`range_first`](https://docs.victoriametrics.com/victoriametrics/metricsql/#range_first) function across all the returned data points. Previously `NaN` data points weren't replaced with the first non-`NaN` value.

## [v1.102.3](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.3)

Released at 2024-09-23

* SECURITY: upgrade Go builder from Go1.22.5 to Go1.23.1. See the list of issues addressed in [Go1.23.1](https://github.com/golang/go/issues?q=milestone%3AGo1.23.1+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.2 to 3.20.3. See [alpine 3.20.3 release notes](https://alpinelinux.org/posts/Alpine-3.17.10-3.18.9-3.19.4-3.20.3-released.html).

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink` in `Host:Port` format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6912).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly consume messages [from kafka](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/). Previously vmagent could skip some messages during start-up.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): perform deduplication for all received data when specifying `-streamAggr.dedupInterval` or `-remoteWrite.streamAggr.dedupInterval` command-line flags are set. Previously, if the `-remoteWrite.streamAggr.config` or `-streamAggr.config` is set, only series that matched aggregation config were deduplicated. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6711#issuecomment-2288361213) for details.
* BUGFIX: [vmagent dashboard](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/vmagent.json): fix legend captions for stream aggregation related panels. Before they were displaying wrong label names.
* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): add missing `datadog`, `newrelic`, `opentelemetry` and `pushgateway` routes to the `JWT` authorization routes. Allows prefixed (`prometheus/graphite`) routes for query requests.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly cache empty list of matching time series for the given [labels filter](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering). This type of caching was broken since [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0), which could result in the increased CPU usage when performing queries, which match zero time series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7009).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Fixes start-up crash on Windows OS. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6973) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric `vm_object_references{type="indexdb"}`. Previously, it was overcounted.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly ingest stale NaN samples. Previously it could be dropped if series didn't exist at storage node. See this issue [https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5069] for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly track `vm_missing_tsids_for_metric_id_total` metric. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6931) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): do not send notifications without labels to Alertmanager. Such notifications are rejected by Alertmanager anyway. Before, vmalert could send alert notifications even if no label-value pairs left after applying `alert_relabel_configs` from [notifier config](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly update value of variable `$activeAt` in rules annotation during replay mode. Before, `$activeAt` could have provided incorrect values during replay.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle `c1 AND c2` and `c1 OR c1` queries for constants `c1` and `c2`. Previously such queries could return unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6637).
* BUGFIX: all VictoriaMetrics components: increase default value of `-loggerMaxArgLen` cmd-line flag from 1000 to 5000. This should improve visibility on errors produced by very long queries.

## [v1.102.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.2)

Released at 2024-08-28

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fixes `proxy_url` authorization for scrape targets. Previously proxy authorization configuration was ignored for `https` targets. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6771) issue for details.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6784).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect HTTP headers defined in [notifier configuration file](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file) for each request to notifiers. Previously, this param was ignored by mistake.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): correctly apply `-streamAggr.dropInputLabels` when global stream deduplication is enabled without `-streamAggr.config`. Previously, `-remoteWrite.streamAggr.dropInputLabels` was used instead.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix command-line flag `-remoteWrite.streamAggr.ignoreFirstIntervals` to accept multiple values and be applied per each corresponding `-remoteWrite.url`. Previously, this flag only could have been used globally for all URLs.
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): respect `-search.denyPartialResponse` cmd-line flag and `deny_partial_response` query GET param when serving requests via Graphite API. Before, partial responses were always denied. Thanks to @penguinlav for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6748).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): account for `-usePromCompatibleNaming` cmd-line flag during when pushing data to remote storages. Thanks to @12345XXX  for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6776).
* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): reduce CPU usage by limiting the number of concurrently running inserts. The issue was introduced in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/498fe1cfa523be5bfecaa372293c3cded85e75ab) starting from v1.101.0. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6733) issue for details.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): fix calculation [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. It was producing incorrect results in case lower buckets. The issue was introduced in [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release, see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6714) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/), [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/) and snapshot API: verify correctness of URLs provided via cmd-line flags before executing HTTP requests. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6740) issue for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): reduce memory usage when parsing responses with big number of metrics in response. The memory usage was increased in [v1.102.0-rc1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc1) after attempt to reduce CPU usage for heavy loaded vmalerts.
* BUGFIX: all VictoriaMetrics components: forcefully set owner/group for release tars to 1000:1000. This helps to avoid unpacking [issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6788) on systems with limitations around UID:GID configuration. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6846).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly register index metrics for previous index part. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6868) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Removes the fallback to global index search when the search using per-day index fails due to too many time series found (the global index will fail anyway with the same error and so the fallback is not needed and only slows down the search). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6836) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric names registering in the per-day index for new dates for existing time series when making calls to `/tags/tagSeries` and `/tags/tagMultiSeries` handlers of [Graphite API](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6872/) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly ignore deleted metrics when applying [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters) and [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6891) issue for the details.

## [v1.102.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.1)

Released at 2024-08-01

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

**Update note 1: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/) HTTP response code has changed from 503 to 502 for a case when all upstream backends were not available. This was changed to align [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/) behaviour with other well-known reverse-proxies behaviour.**

* SECURITY: upgrade base docker image (Alpine) from 3.20.1 to 3.20.2. See [alpine 3.20.2 release notes](https://alpinelinux.org/posts/Alpine-3.20.2-released.html).

* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `keep_original_host` option, which can be used for proxying the original `Host` header from client request to the backend. By default, the backend host is used as `Host` header when proxying requests to the configured backends. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#host-http-header).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): now returns HTTP 502 status code when all upstream backends are not available. Previously, it returned HTTP 503 status code. This change aligns vmauth behavior with other well-known reverse-proxies behavior.
* FEATURE: [vmagent dashboard](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/vmagent.json): add `Scrape duration 0.99 quantile` panel to show the 99th quantile of scrape duration in seconds. This should help identifying vmagent instances that experiences too high scraping durations.

* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Fixes panic if incorrect `metricsql` expression passed to the `prettify-query` API. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6736) for details.
* BUGFIX: all VictoriaMetrics components: validate files specified via `-tlsKeyFile` and `-tlsCertFile` cmd-line flags on the process start-up. Previously, validation happened on the first connection accepted by HTTP server. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6608) for the details. Thanks to @yincongcyincong for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6621).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly proxy requests to backend urls ending with `/` if the original request path equals to `/`. Previously the trailing `/` at the backend path was incorrectly removed. For example, if the request to `http://vmauth/` is configured to be proxied to `url_prefix=http://backend/foo/`, then it was proxied to `http://backend/foo`, while it should go to `http://backend/foo/`.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fix `cannot read data after closing the reader` error when proxying HTTP requests without body (aka `GET` requests). The issue has been introduced in [v1.102.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0) in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/7ee57974935a662896f2de40fdf613156630617d).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix auto-completion triggers for metric and label names, and disable it after specific characters. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6153) and [these comments](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5866#issuecomment-2065273421).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix automatic addition of quotes when inserting label values from autocomplete suggestions. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6260).

## [v1.102.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0)

Released at 2024-07-17

**v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release**

**Update note 1: support for snap packages was removed due to lack of interest from community. See this [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6543) for details. Please read about supported package types [here](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#install).**

**Update note 2: [stream aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config) now prevents setting multiple identical outputs. For example, `outputs: [total, total]` will fail the validation phase. In addition, `outputs: ["quantiles(0.5)", "quantiles(0.9)"]` will fail the validation as well - use `outputs: ["quantiles(0.5, 0.9)"]` instead.**

* SECURITY: upgrade Go builder from Go1.22.4 to Go1.22.5. See the list of issues addressed in [Go1.22.5](https://github.com/golang/go/issues?q=milestone%3AGo1.22.5+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.0 to 3.20.1. See [alpine 3.20.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.1-released.html).

* FEATURE: [streaming aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): expose the following metrics at `/metrics` page of [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/):
  * `vm_streamaggr_matched_samples_total` - the number of input samples matched by the corresponding aggregation rule
  * `vm_streamaggr_output_samples_total` - the number of output samples produced by the corresponding aggregation rule
  * `vm_streamaggr_samples_lag_seconds` - [histogram](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#histogram) with the lag between the current time and the timestamp seen in the aggregated input samples
* FEATURE: [streaming aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add new labels to `vm_streamaggr_*` metrics:
  * `name` - the name of the streaming aggregation rule, which can be configured via `name` option - see [these docs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config).
  * `url` - `-remoteWrite.url` for the corresponding `-remoteWrite.streamAggr.config`
  * `path` - path to the corresponding streaming aggregation config file
  * `position` - the position of the aggregation rule in the corresponding streaming aggregation config file
* FEATURE: [streaming aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): prevent having duplicated aggregation function as `outputs` in one [aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config). It also prevents using `outputs: ["quantiles(0.5)", "quantiles(0.9)"]` instead of  `outputs: ["quantiles(0.5, 0.9)"]`, as the former has higher computation cost for producing the same result.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add `-graphite.sanitizeMetricName` command-line flag for sanitizing metrics ingested via [Graphite protocol](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#ingesting). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6077).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): [`yandexcloud_sd_configs`](https://docs.victoriametrics.com/victoriametrics/sd_configs/#yandexcloud_sd_configs): add support for obtaining IAM token in [GCE format](https://yandex.cloud/en-ru/docs/compute/operations/vm-connect/auth-inside-vm#auth-inside-vm) additionally to the [deprecated Amazon EC2 IMDSv1 format](https://yandex.cloud/en/docs/security/standard/authentication#aws-token). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5513).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): make `-replay.timeTo` optional in [replay mode](https://docs.victoriametrics.com/victoriametrics/vmalert/#rules-backfilling). When omitted, the current timestamp will be used. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6492).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): reduce CPU usage when proxying data ingestion requests.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow disabling request body caching with `-maxRequestBodySizeToRetry=0`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6445). Thanks to @shichanglin5 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6533).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow overriding `Host` header with backend host before sending the request to the configured backend. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#modifying-http-headers) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6453).
* FEATURE: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): do not retry RPC calls to vmstorage nodes if [complexity limits](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#resource-usage-limits) were exceeded.
* FEATURE: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/) and [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmrestore/): add support for [Azure Managed Identity](https://learn.microsoft.com/en-us/entra/identity/managed-identities-azure-resources/overview) and default credentials lookup. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmbackup/#providing-credentials-via-env-variables) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5984) for the details. Thanks to @justinrush for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6518).
* FEATURE: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/) and [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmbackup/): allow overriding Azure storage domain when performing backups via `AZURE_STORAGE_DOMAIN` environment variable. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmbackup/#providing-credentials-via-env-variables) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5984). Thanks to @justinrush for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6518).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): show compacted result in the JSON tab for query results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6559).
* FEATURE: [dashboards](https://grafana.com/orgs/victoriametrics): add [Grafana dashboard](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/vmauth.json) and [alerting rules](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-vmauth.yml) for [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/) dashboard. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4313) for details.
* FEATURE: [vmagent dashboard](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/vmagent.json): `stream aggregation` section: add graphs based on newly exposed streaming aggregation metrics.

* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly calculate [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4580#issuecomment-2186659102) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6547). Updates [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2819).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix panic when using multiple topics with the same name when [ingesting metrics from Kafka](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6636) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix incorrect redirection in WebUI of vmalert. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6603) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6620).
* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): properly apply read and write based rate limits. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6148) for details.
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): fix `vm_backup_last_run_failed` metric not being properly initialized during startup. Previously, it could imply an error even if the backup have been completed successfully. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6550) for the details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix input cursor position reset in modal settings. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6530).
* BUGFIX: [docker-compose](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics): fix incorrect link to vmui from [VictoriaMetrics plugin in Grafana](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#grafana).

## [v1.102.0-rc2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc2)

Released at 2024-06-24

**Update note 1: the `--vm-disable-progress-bar` command-line flag at `vmctl` was deprecated. Use `--disable-progress-bar` instead.**

**Update note 2: `*.passwordFile` and similar flags are no longer trimming trailing whitespaces at the end of content. Make sure to update the templating of password files or HTTP endpoints to not include trailing whitespaces before the upgrade. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6503) PR for the details.**

* FEATURE: [alerts-vmagent](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-vmagent.yml): add new alerting rules `StreamAggrFlushTimeout` and `StreamAggrDedupFlushTimeout` to notify about issues during stream aggregation.
* FEATURE: [dashboards/vmagent](https://grafana.com/grafana/dashboards/12683): add row `Streaming aggregation` with panels related to [streaming aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/) process.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `-idleConnTimeout` flag set to 50s by default. It should reduce the probability of `broken pipe` or `connection reset by peer` errors in vmauth logs.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add automatic retry for requests to backend for trivial network errors, such as `broken pipe` and `connection reset` for requests to the configured backends.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): increase default value of `-promscrape.maxDroppedTargets` command-line flag to 10_000 from 1000. This makes it easier to track down large number of dropped targets. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6381).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add `max_scrape_size` option to [scrape config](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs) for setting custom limit on the response size target can send. The new [automatically generated metric](https://docs.victoriametrics.com/victoriametrics/vmagent/#automatically-generated-metrics) `scrape_response_size_bytes` is added to reflect the response size of the target. See these issues: [1](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6429), [2](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2992), [3](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6123), [4](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5612).
* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): check for ranged vector arguments in non-rollup expressions when `-search.disableImplicitConversion` or `-search.logImplicitConversion` are enabled. For example, `sum(up[5m])` or `absent(up[5m])` will fail to execute if these flags are set.
* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): validate that rollup expressions has ranged vector arguments passed when `-search.disableImplicitConversion` or `-search.logImplicitConversion` are enabled. For example, `rate(metric)` or `count_over_time(metric)` will fail to execute if these flags are set.
* FEATURE: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): support file path with hierarchical patterns and regexes, and http url in unittest cmd-line flag `-files`, e.g. `-files="http://<some-server-addr>/path/to/rules"` or `-files="dir/**/*.yaml"`.

* BUGFIX: all VictoriaMetrics components: properly calculate `process_resident_memory_bytes` metric for OS with non-default value of memory page size. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6457) for details.
* BUGFIX: all VictoriaMetrics components: prioritize `-configAuthKey` and `-reloadAuthKey` over `-httpAuth.*` settings. This change aligns behavior of mentioned flags with other auth flags like `-metricsAuthKey`, `-flagsAuthKey`, `-pprofAuthKey`. Check [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6329).
* BUGFIX: all VictoriaMetrics components: do not trim trailing spaces when reading content from `*.passwordFile` and similar flags. Previously, trailing spaces were trimmed from the content of the password file, which could lead to unexpected authentication errors.
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): add `--disable-progress-bar` global command-line flag. It can be used for disabling dynamic progress bar for all migration modes. `--vm-disable-progress-bar`  command-line flag is deprecated and will be removed in the future releases. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6367).
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): prevent [rate_sum](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#rate_sum) and [rate_avg](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#rate_avg) producing `NaN` results for stale time series. Before, when series matched for aggregation became stale or weren't updated during aggregation interval, the `rate_sum` or `rate_avg` could produce data point with `NaN` value. During visualization, such aggregation results would be displayed as gaps in time series.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix path for system links printed on default vmalert's UI page when `-http.pathPrefix` is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6433).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): exit replay mode with non-zero code if generated samples are not successfully written into remoteWrite url. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6512).
* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/): properly configure authentication with S3 when `-configFilePath` cmd-line flag is specified. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6353).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) enterprise: properly configure authentication with S3 when `-s3.configFilePath` cmd-line flag is specified for reading rule configs.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly specify oauth2 `ClientSecret` when configuring authentication for `notifier.url`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6471) for details. Thanks to @yincongcyincong for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6478).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add validation for the max value specified for `-retentionPeriod`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6330) for details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): **copy row** button in Table view produces unexpected result. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6421) and [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6495).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): prevent hanging when processing groups without rules. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6500).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fix discovering backend IPs when `url_prefix` contains hostname with srv+ prefix. Thanks to @shichanglin5 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6401).

## [v1.102.0-rc1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc1)

Released at 2024-06-07

**Update note 1: the `-remoteWrite.multitenantURL` command-line flag at `vmagent` was removed starting from this release. This flag was deprecated since [v1.96.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.96.0). Use `-enableMultitenantHandlers` instead, as it is easier to use and combine with [multitenant URL at vminsert](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels). See [these docs](https://docs.victoriametrics.com/victoriametrics/vmagent/#multitenancy) for details.**

**Update note 2: the `-streamAggr.dropInputLabels` command-line flag at `vmagent` was renamed to `-remoteWrite.streamAggr.dropInputLabels`. `-streamAggr.dropInputLabels` is now used for global streaming aggregation.**

**Update note 3: the `-maxLabelValueLen` command-line flag default value was changed from 16KiB to 4KiB. It may lead to truncating of labels with too long values.**

* SECURITY: upgrade Go builder from Go1.22.2 to Go1.22.4. See the list of issues addressed in [Go1.22.3](https://github.com/golang/go/issues?q=milestone%3AGo1.22.3+label%3ACherryPickApproved) and [Go1.22.4](https://github.com/golang/go/issues?q=milestone%3AGo1.22.4+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.19.1 to 3.20.0. See [alpine 3.20.0 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.0-released.html).
* SECURITY: add release images built from scratch image. Such images could be more preferable for using in environments with higher security standards. See this [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6386).

* FEATURE: [dashboards/single](https://grafana.com/grafana/dashboards/10229): support selecting of multiple instances on the dashboard. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5869) for details.
* FEATURE: [dashboards/single](https://grafana.com/grafana/dashboards/10229): properly display version in the Stats row for the custom builds of VictoriaMetrics.
* FEATURE: [dashboards/single](https://grafana.com/grafana/dashboards/10229): add `Network Usage` panel to `Resource Usage` row.
* FEATURE: [dashboards/operator](https://grafana.com/grafana/dashboards/17869), [dashboards/backupmanager](https://grafana.com/grafana/dashboards/17798) and [dashboard/tenant-statistic](https://grafana.com/grafana/dashboards/16399): update dashboard to be compatible with Grafana 10+ version.
* FEATURE: [dashboards/cluster](https://grafana.com/grafana/dashboards/11176): add new panel `Concurrent selects` to `vmstorage` row. The panel will show how many ongoing select queries are processed by vmstorage and should help to identify resource bottlenecks. See panel description for more details.
* FEATURE: [dashboards](https://grafana.com/orgs/victoriametrics): use `$__interval` variable for offsets and look-behind windows in annotations. This should improve precision of `restarts` and `version change` annotations when zooming-in/zooming-out on the dashboards.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support aggregation and deduplication configs before replicating data to configured `-remoteWrite.url` destinations. This saves CPU and memory resources when incoming data needs to be aggregated or deduplicated once and then replicated to multiple destinations. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5467).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add service discovery support for [Vultr](https://www.vultr.com/). See [these docs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#vultr_sd_configs) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6041).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): allow specifying `-remoteWrite.disableOnDiskQueue` command-line flag per each `-remoteWrite.url`. If multiple `-remoteWrite.disableOnDiskQueue` command-line flags are configured, then the `-remoteWrite.dropSamplesOnOverload` is automatically set to true, so samples are automatically dropped if they cannot be sent to the corresponding `-remoteWrite.url` in a timely manner. See this [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6065). Thanks to @rbizos for implementation!
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add `path` and `url` labels to `vmagent_remotewrite_push_failures_total` and `vmagent_remotewrite_samples_dropped_total` [metrics](https://docs.victoriametrics.com/victoriametrics/vmagent/#monitoring), so the number of failed pushes and dropped samples can be tracked per each `-remoteWrite.url`.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add [rate_sum](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#rate_sum) and [rate_avg](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#rate_avg) aggregation outputs.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): reduce the number of allocated objects in heap during deduplication and aggregation. The change supposed to reduce pressure on Garbage Collector, as it will need to scan less objects. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6402).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add `-datasource.idleConnTimeout`, `-remoteWrite.idleConnTimeout` and `-remoteRead.idleConnTimeout` flags. These flags are set to 50s by default and should reduce the probability of `broken pipe` or `connection reset by peer` errors in vmalert logs. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5661) for details.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add auto request retry for trivial network errors, such as `broken pipe` and `connection reset` for requests to `remoteRead`, `remoteWrite` and `datasource` URLs. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5661) for details.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): reduce CPU usage when evaluating high number of alerting and recording rules.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): speed up retrieving rules files from object storages by skipping unchanged objects during reloading. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6210).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): support reading [DNS SRV](https://en.wikipedia.org/wiki/SRV_record) records in `-datasource.url`, `-remoteWrite.url` and `-remoteRead.url` command-line option. For example, `-remoteWrite.url=http://srv+victoria-metrics` automatically resolves the `victoria-metrics` DNS SRV to a list of hostnames with TCP ports and then sends data to one of the addresses. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053).
* FEATURE: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/), [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmrestore/), [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): add `-s3TLSInsecureSkipVerify` command-line flag for skipping TLS certificates verification when connecting to S3 endpoint.
* FEATURE: expose metric `vm_indexdb_items_dropped_total` to track the number of IndexDB records that had to be dropped during ingestion. The reason of dropping the record will be annotated in `reason` label of the exposed metric. This change also comes with a new [alerting rule](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-health.yml) to track changes of this metric.
* FEATURE: [alerts-health](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-health.yml): add new alerting rules `TooLongLabelValues` and `TooLongLabelNames` to notify about truncation of label values or names respectively.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): expose `vm_streamaggr_ignored_samples_total` [counters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#counter) at [`/metrics` page](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring), which can be used for detecting amount of too old or NaN valued ignored samples. Expose also `vm_streamaggr_samples_lag_seconds` [histogram](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#histogram) to monitor aggregated samples lag.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): improve filtering speed of the received data samples if [match](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config) field is matching only [metric name](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#structure-of-a-metric).
* FEATURE: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): adds `-relabelConfigCheckInterval` flag and `/-/reload` endpoint for reloading relabeling rules. See this [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3923) for details.

* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix bug that prevents the first query trace from expanding on click event. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6186). The issue was introduced in [v1.100.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11000) release.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix calendar display when `UTC+00:00` timezone is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6239).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): remove redundant requests on the `Explore Cardinality` page. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6240).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix handling of URL params for browser history navigation (back and forward buttons). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6126) and [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5516#issuecomment-1867507232).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): prevent potential panic during [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/) when more than one `-remoteWrite.url` command-line flags are passed to `vmagent` together with non-zero `-remoteWrite.streamAggr.dedupInterval` command-line flag. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6205).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): skip empty data blocks before sending to the remote write destination. Thanks to @viperstars for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6241).
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): set correct suffix `<output>_prometheus` for aggregation outputs [increase_prometheus](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#increase_prometheus) and [total_prometheus](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#total_prometheus). Before, outputs `total` and `total_prometheus` or `increase` and `increase_prometheus` had the same suffix.
* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): prevent from excessive resource usage when stream aggregation config file is empty.
* BUGFIX: properly estimate the needed memory for query execution if it has the format [`aggr_func`](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions)([`rollup_func[d]`](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) (for example, `sum(rate(request_duration_seconds_bucket[5m]))`). This should allow performing aggregations over bigger number of time series when VictoriaMetrics runs in environments with small amounts of available memory. The issue has been introduced in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/5138eaeea0791caa34bcfab410e0ca9cd253cd8f) in [v1.83.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1830).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): correctly apply `-inmemoryDataFlushInterval` when it's set to minimum supported value 1s.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): reduce the default value for `-maxLabelValueLen` command-line flag from `16KiB` to `1KiB`. This should prevent from issues like [this one](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6176) when time series with too long labels are ingested into VictoriaMetrics.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly release memory used for metrics during config reload. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6247).
* BUGFIX: [dashboards](https://grafana.com/orgs/victoriametrics): fix `AnnotationQueryRunner` error in Grafana when executing annotations query against Prometheus backend. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6309) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): filter deleted label names and values from [`/api/v1/labels`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels) and [`/api/v1/label/.../values`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) responses when `match[]` filter matches small number of time series. The issue was introduced [v1.81.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1810).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): fix float values template in `input_series`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6391).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix misleading error logs in vmalert's stdout when unsupported HTTP path is requested.
* BUGFIX: retry files delete attempts on vXFS file system for `EEXIST` error type. See the [related issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6396). Thanks to @pludov for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6398).

* DEPRECATION: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): removed deprecated `-remoteWrite.multitenantURL` flag from vmagent. This flag was deprecated since [v1.96.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.96.0). Use `-enableMultitenantHandlers` instead, as it is easier to use and combine with [multitenant URL at vminsert](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels). See [these docs](https://docs.victoriametrics.com/victoriametrics/vmagent/#multitenancy) for details.

## [v1.101.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.101.0)

Released at 2024-04-26

* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): support filtering by multiple numeric constants via `q == (C1, ..., CN)` and `q != (C1, ..., CN)` syntax. For example, `status_code == (200, 201, 300)` returns `status_code` metrics with any of `200`, `201` or `300` values, while `status_code != (400, 404, 500)` returns `status_code` metrics with all the values except of `400`, `404` and `500`.
* FEATURE: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add support for fault domain awareness to `vmselect`. It can be configured to return full responses if up to `-globalReplicationFactor - 1` fault domains (aka `vmstorage` groups) are unavailable. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6054) and [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmstorage-groups-at-vmselect).
* FEATURE: all VictoriaMetrics [enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/) components: add support for automatic issuing of TLS certificates for HTTPS server at `-httpListenAddr` via [Let's Encrypt service](https://letsencrypt.org/). See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#automatic-issuing-of-tls-certificates) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5949).
* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): support disable or log [implicit conversions](https://docs.victoriametrics.com/victoriametrics/metricsql/#implicit-query-conversions) for subquery with cmd-line flags `-search.disableImplicitConversion` and `-search.logImplicitConversion`. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4338).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support data replication additionally to sharding among remote storage systems if `-remoteWrite.shardByURLReplicas=N` command-line flag is set additionally to `-remoteWrite.shardByURL` command-line flag, where `N` is desired replication factor. This allows setting up data replication among failure domains when the replication factor is smaller than the number of failure domains. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6054).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduce CPU usage when [sharding among remote storage systems](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages) is enabled.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): reduce memory usage during stream aggregation if multiple aggregation configs are used for the same set of data.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support [DNS SRV](https://en.wikipedia.org/wiki/SRV_record) addresses in `-remoteWrite.url` command-line option and in scrape target urls. For example, `-remoteWrite.url=http://srv+victoria-metrics/api/v1/write` automatically resolves the `victoria-metrics` DNS SRV to a list of hostnames with TCP ports and then sends the collected metrics to these TCP addresses. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmagent/#srv-urls) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): allow skipping first N aggregation intervals via cmd-line flag `-streamAggr.ignoreFirstIntervals` for [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) or `-remoteWrite.streamAggr.ignoreFirstIntervals` for [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/). See more details [here](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#ignore-aggregation-intervals-on-start).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): support automatic discovering and load balancing for TCP addresses behind DNS SRV addresses. These addresses can be put inside `url_prefix` urls in the form `http://srv+addr/path`, where the `addr` is the [DNS SRV](https://en.wikipedia.org/wiki/SRV_record) address, which is automatically resolved to hostnames with TCP ports. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#srv-urls) for details.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): support specifying client TLS certificates and TLS ServerName for requests to HTTPS backends. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#backend-tls-setup).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): support regex matching when routing incoming requests based on HTTP [query args](https://en.wikipedia.org/wiki/Query_string) via `src_query_args` option at `url_map`. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#generic-http-proxy-for-different-backends) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6070).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): optimize auto-suggestion performance for metric names when the database contains big number of unique time series.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): in the Select component, user-entered values are now preserved on blur if they match options in the list.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): auto-suggestion triggers at any cursor position in the query input. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5864).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): update error messages on the Query page for enhanced clarity. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6177).

* BUGFIX: [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling): skip unnecessary index lookups if downsampling wasn't set for ENT versions of VictoriaMetrics. Before, users of VictoriaMetrics ENT could have experience elevated CPU usage even if no downsampling was configured. The issue was introduced in [v1.100.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11000).
* BUGFIX: [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling): properly populate downsampling metadata for data parts created by VictoriaMetrics ENT versions lower than v1.100.0. The bug could trigger the downsampling actions for parts that were downsampled already. This bug doesn't have any negative effect apart from spending extra CPU resources on the repeated downsampling. The issue was introduced in [v1.100.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11000).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): supported any status codes from the range 200-299 from alertmanager. Previously, only 200 status code considered a successful action. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6110).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): avoid blocking `/api/v1/rules`, `/api/v1/alerts`, `/metrics` APIs when alerting rule uses template functions `query`, which could takes a while to execute. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6079).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix links with anchors in vmalert's UI. Starting from [v1.99.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.99.0) vmalert could ignore anchors pointing to specific rule groups if `search` param was present in URL.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): don't treat concurrency limit hit as an error of the backend. Previously, hitting the concurrency limit would increment both `vmauth_concurrent_requests_limit_reached_total` and `vmauth_user_request_backend_errors_total` counters. Now, only concurrency limit counter is incremented. Updates [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5565).

## [v1.100.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.100.1)

Released at 2024-04-11

**Update note 1: This release contains the issue which could lead to extra CPU usage of storage component in ENT distribution of VictoriaMetrics. The issue is caused by [downsampling per distinct sets of time series](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling) feature introduced in 1.100.0 ENT version. Please, upgrade to [v1.101.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11010) or rollback to [v1.98.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1980) ENT version if you're affected.**

**Update note 2: When upgrading to this release from [v1.99.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1990) or [v1.100.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11000) it is recommended to reset caches stored on disk according to [these](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#cache-removal) docs.**

* FEATURE: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): allow specifying custom backup interval via `-backupInterval` command-line flag. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5966).

* BUGFIX: properly register new entries in IndexDB when many new time series are ingested into VictoriaMetrics in a short period of time. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6069) issues. The bug has been introduced in [v1.99.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.99.0).
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): fix panic when performing a restore from GCS. Previously, filters for GCS objects were not properly set which caused objects to be returned instead of prefixes.

## [v1.100.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.100.0)

Released at 2024-04-04

**This release contains [the issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959), which can prevent from storing data for new time series under high rate of search queries. Please rollback to [v1.98.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1980) or upgrade to [v1.101.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.101.0).**

**Update note 1: the `-datasource.lookback` command-line flag at `vmalert` is no-op starting from this release. This flag will be removed in the future, so please switch to [`eval_delay` option](https://docs.victoriametrics.com/victoriametrics/vmalert/#groups). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5155) for more details.**

**Update note 2: `-streamAggr.dedupInterval` and `-remoteWrite.streamAggr.dedupInterval` cmd-line flags are now used for all incoming samples if `-streamAggr.config` and `-remoteWrite.streamAggr.config` aren't specified. Before, deduplication wasn't applied if aggregation config was omitted.**

* SECURITY: upgrade Go builder from Go1.21.7 to Go1.22.2. See [the list of issues addressed in Go1.22.1](https://github.com/golang/go/issues?q=milestone%3AGo1.22.1+label%3ACherryPickApproved) and [the list of issues addressed in Go1.22.2](https://github.com/golang/go/issues?q=milestone%3AGo1.22.2+label%3ACherryPickApproved).

* FEATURE: [downsampling](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling): add ability to configure distinct downsampling per distinct sets of time series and/or [tenants](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4960) and [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#downsampling).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow discovering ip addresses for backend instances hidden behind a shared hostname, via `discover_backend_ips: true` option. This allows evenly spreading load among backend instances. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#discovering-backend-ips) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5707).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow routing incoming requests based on HTTP [query args](https://en.wikipedia.org/wiki/Query_string) via `src_query_args` option at `url_map`. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#generic-http-proxy-for-different-backends) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5878).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow routing incoming requests based on HTTP request headers via `src_headers` option at `url_map`. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#generic-http-proxy-for-different-backends).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add ability to read auth tokens from arbitrary HTTP request headers via `-httpAuthHeader` command-line flag. Previously auth tokens were read only from `Authorization` HTTP request header. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#reading-auth-tokens-from-other-http-headers) for details.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add ability to authorize by opaque HTTP request header value via `auth_token` option in [-auth.config](https://docs.victoriametrics.com/victoriametrics/vmauth/#auth-config).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): reduce memory usage by up to 5x when aggregating over big number of unique [time series](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#time-series). The memory usage reduction is most visible when [stream deduplication](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication) is enabled.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): allow using `-streamAggr.dedupInterval` and `-remoteWrite.streamAggr.dedupInterval` command-line flags without the need to specify `-streamAggr.config` and `-remoteWrite.streamAggr.config`. See [these docs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add `-streamAggr.dropInputLabels` command-line flag, which can be used for dropping the listed labels from input samples before applying stream [de-duplication](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication) and aggregation. This is faster and easier to use alternative to [input_relabel_configs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#relabeling). See [these docs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#dropping-unneeded-labels).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add `dedup_interval` option, which allows configuring individual [deduplication intervals](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication) per each [stream aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): use the same logic in [stream deduplication](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication) as in [the deduplication at VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#deduplication). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5643).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): ignore out of order samples when calculating [`increase`](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#increase), [`increase_prometheus`](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#increase_prometheus), [`total`](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#total) and [`total_prometheus`](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#total_prometheus) outputs. Thanks to @edma2 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5931).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add an ability to ignore input samples with old timestamps outside the current aggregation interval. See [these docs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#ignoring-old-samples) for details.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add `keep_metric_names` option, which can be set at [stream aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config) in order to keep the original metric names in the output aggregated samples instead of using [the default output metric naming scheme](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#output-metric-names).
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): align the time of aggregated data flush to the specified aggregation `interval`. For example, if `interval` is set to `1m`, then the aggregated data will be flushed at the end of every minute. The alignment can be disabled by setting `no_align_flush_to_interval: true` option at [stream aggregation config](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#stream-aggregation-config). See [these docs](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#flush-time-alignment) for details.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add [unique_samples](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#unique_samples) output, which can be used for calculating the number of unique sample values over the given `interval`.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): add [increase_prometheus](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#increase_prometheus) and [total_prometheus](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#total_prometheus) outputs, which can be used for `increase` and `total` aggregations when the first sample of every new [time series](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#time-series) must be ignored.
* FEATURE: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): expose `vm_streamaggr_flush_timeouts_total` and `vm_streamaggr_dedup_flush_timeouts_total` [counters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#counter) at [`/metrics` page](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring), which can be used for detecting flush timeouts for stream aggregation states. Expose also `vm_streamaggr_flush_duration_seconds` and `vm_streamaggr_dedup_flush_duration_seconds` [histograms](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#histogram) for monitoring the real flush durations of stream aggregation states.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): improve trace display for better visual separation of branches. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5926).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): ability to limit the ingestion rate via `-maxIngestionRate` command-line flag. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5900).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): use the provided `-remoteWrite.tlsServerName` as `Host` header in requests to `-remoteWrite.url`. This allows sending data to https remote storage by IP address instead of hostname. Thanks to @minor-fixes for initial idea and [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5802).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add `-remoteWrite.shardByURL.ignoreLabels` command-line flag, which can be used for specifying the ignored list of labels when [sharding by `-remoteWrite.url` is enabled](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages). Thanks to @edma2 for the idea and [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5938).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): automatically reload updated root CA certificates from files without the need to restart `vmagent`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5526).
* FEATURE: optimize [`/api/v1/labels`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels) and [`/api/v1/label/.../values`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) when `match[]` filters contains metric name. For example, `/api/v1/label/instance/values?match[]=up` now works much faster than before. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5055).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): accept Prometheus remote write protocol data at `/api/v1/push` endpoint. This simplifies writing data to `vmagent` from Grafana Mimir. Thanks to @edma2 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5990).
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): support client-side TLS configuration for [native protocol](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5824).
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): support client-side TLS configuration for VictoriaMetrics destination specified via `--vm-*` cmd-line flags used in [InfluxDB](https://docs.victoriametrics.com/victoriametrics/vmctl/influxdb/), [Remote Read protocol](https://docs.victoriametrics.com/victoriametrics/vmctl/remoteread/), [OpenTSDB](https://docs.victoriametrics.com/victoriametrics/vmctl/opentsdb/), [Prometheus](https://docs.victoriametrics.com/victoriametrics/vmctl/prometheus/) and [Promscale](https://docs.victoriametrics.com/victoriametrics/vmctl/promscale/) migration modes.
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): split [explore phase](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/) in `vm-native` mode by time intervals when [--vm-native-step-interval](https://docs.victoriametrics.com/victoriametrics/vmctl/#using-time-based-chunking-of-migration) is specified. This should reduce probability of exceeding complexity limits for number of selected series during explore phase. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5369).
* FEATURE: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): add `-logInvalidAuthTokens` command-line flag, which can be used for logging invalid auth tokens. This is useful for debugging of auth token format issues. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6029).
* FEATURE: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): add support for [aggregateSeriesLists](https://graphite.readthedocs.io/en/latest/functions.html#graphite.render.functions.aggregateSeriesLists), [diffSeriesLists](https://graphite.readthedocs.io/en/latest/functions.html#graphite.render.functions.diffSeriesLists), [multiplySeriesLists](https://graphite.readthedocs.io/en/latest/functions.html#graphite.render.functions.multiplySeriesLists) and [sumSeriesLists](https://graphite.readthedocs.io/en/latest/functions.html#graphite.render.functions.sumSeriesLists) functions. Thanks to @rbizos for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5809).
* FEATURE: [OpenTelemetry](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/): add `-opentelemetry.usePrometheusNaming` command-line flag, which can be used for enabling automatic conversion of the ingested metric names and labels into Prometheus-compatible format. See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6037).

* BUGFIX: prevent from automatic deletion of newly registered time series when it is queried immediately after the addition. The probability of this bug has been increased significantly after [v1.99.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.99.0) because of optimizations related to registering new time series. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5948) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959) issue.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `Host` header in requests to scrape targets if it is specified via [`headers` option](https://docs.victoriametrics.com/victoriametrics/sd_configs/#http-api-client-options). Thanks to @fholzer for [the bugreport](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5969) and [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5970).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `Host` header in requests to scrape targets when [`server_name` option at `tls_config`](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#tls_config) is set. Previously the `Host` header was set incorrectly to the target hostname in this case.
* BUGFIX: do not drop `match[]` filter at [`/api/v1/series`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1series) if `-search.ignoreExtraFiltersAtLabelsAPI` command-line flag is set, since missing `match[]` filter breaks `/api/v1/series` requests.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return proper responses for [AWS Firehose](https://docs.aws.amazon.com/firehose/latest/dev/httpdeliveryrequestresponse.html#requestformat) requests according to [these docs](https://docs.aws.amazon.com/firehose/latest/dev/httpdeliveryrequestresponse.html#responseformat). See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6016) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6037).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly parse TLS key and CA files for [InfluxDB](https://docs.victoriametrics.com/victoriametrics/vmctl/influxdb/) and [OpenTSDB](https://docs.victoriametrics.com/victoriametrics/vmctl/opentsdb/) migration modes.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix VictoriaLogs UI query handling to correctly apply `_time` filter across all queries. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5920).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix issue where `step` parameter wasn't updated after moving the focus outside the `step` input field in Firefox.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix freezing when pasting a query with autocomplete enabled. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5923).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix auto-suggestion trigger issue after whitespace char. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5866).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): limit duration of requests to /api/v1/labels, /api/v1/label/.../values or /api/v1/series with `-search.maxLabelsAPIDuration` duration. Before, `-search.maxExportDuration` value was used by mistake. The bug has been introduced in [v1.99.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.99.0). Thanks to @kbweave for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5992).
* BUGFIX: properly wait for force merge to be completed during the shutdown. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5944) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): set correct `endsAt` value in notifications sent to the Alertmanager. Previously, a rule with evaluation intervals lower than 10s could never be triggered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5995) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly account for `-rule.resendDelay` for alerting rules that are constantly switching state from inactive to firing. Before, notifications for such rules could have been skipped if state change happened more often than `-rule.resendDelay`. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6028) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect `-remoteWrite.maxBatchSize` at shutdown period. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6025). Thanks to @jiekun for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6039).

## [v1.99.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.99.0)

Released at 2024-03-01

**This release contains [the issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959), which can prevent from storing data for new time series under high rate of search queries. Please rollback to [v1.98.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1980) or upgrade to [v1.101.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.101.0).**

* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): propagate [label filters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) via all the [label manipulation functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#label-manipulation-functions). For example, `label_del(some_metric{job="foo"}, "instance") + other_metric{pod="bar"}` is now transformed to `label_del(some_metric{job="foo",pod="bar"}, "instance") + other_metric{job="foo",pod="bar"}`. This should reduce the amounts of time series processed during query execution.
* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): add [count_values_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#count_values_over_time) function. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5847).
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): expose `vm_last_partition_parts` [metrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring), which show the number of [parts in the latest partition](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#storage). These metrics may help debugging query performance slowdown related to the increased number of parts in the last partition, since usually all the ingested data is written to the last partition and all the queries are performed over the recently ingested data, e.g. the last partition.
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): expose `vm_snapshots` [metric](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring), which shows the current number of snapshots created via [snapshot API](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-work-with-snapshots).
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add `-search.ignoreExtraFiltersAtLabelsAPI` command-line flag, which can be used for reducing load on VictoriaMetrics when [/api/v1/labels](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels), [/api/v1/label/.../values](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) or [/api/v1/series](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1series) are queried with too broad [`extra_filters` or `extra_label`](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#prometheus-querying-api-enhancements), which match many time series. See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#resource-usage-limits) for details.
* FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): allow limiting CPU and RAM usage at [/api/v1/labels](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels), [/api/v1/label/.../values](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) and [/api/v1/series](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1series) on systems with [high churn rate](https://docs.victoriametrics.com/victoriametrics/faq/#what-is-high-churn-rate) via `-search.maxLabelsAPIDuration` and `-search.maxLabelsAPISeries` command-line flags. See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#resource-usage-limits) for details.
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): support reading [Amazon CloudWatch](https://aws.amazon.com/cloudwatch/) metrics in [OpenTelemetry](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-metric-streams-formats-opentelemetry-100.html) format from [Amazon Data Firehose](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Metric-Streams.html).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for `client_id` option into [kuma_sd_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#kuma_sd_configs) in the same way as Prometheus does. See [this pull request](https://github.com/prometheus/prometheus/pull/13278).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for `enable_compression` option in [scrape_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs) in order to be compatible with Prometheus scrape configs. See [this pull request](https://github.com/prometheus/prometheus/pull/13166) and [this feature request](https://github.com/prometheus/prometheus/issues/12319). Note that `vmagent` was always supporting [`disable_compression` option](https://docs.victoriametrics.com/victoriametrics/vmagent/#scrape_config-enhancements) before Prometheus added `enable_compression` option.
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): support client-side TLS configuration for [InfluxDB](https://docs.victoriametrics.com/victoriametrics/vmctl/influxdb/), [Remote Read protocol](https://docs.victoriametrics.com/victoriametrics/vmctl/remoteread/) and [OpenTSDB](https://docs.victoriametrics.com/victoriametrics/vmctl/opentsdb/). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 for pull requests [1](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5783), [2](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5798), [3](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5797).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): preserve [`WITH` templates](https://play.victoriametrics.com/select/0/prometheus/graph/#/expand-with-exprs) when clicking the `prettify query` button at the right side of query input field. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5383).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): allow filling gaps on graphs with interpolated lines as Grafana does. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5152) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5862).
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): support filtering by group, rule or labels in [vmalert's UI](https://docs.victoriametrics.com/victoriametrics/vmalert/#web) for `/groups` and `/alerts` pages. See [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5791) by @victoramsantos.
* FEATURE: [docker-compose](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics): create a separate [docker-compose environment](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#victoriaLogs-server) for VictoriaLogs installation, including fluentbit and [VictoriaLogs Grafana datasource](https://github.com/VictoriaMetrics/victorialogs-datasource). See [these docs](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#victoriaLogs-server) for details.
* FEATURE: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): wait for up 30 seconds before making a [snapshot](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-work-with-snapshots) for backup if `vmstorage` is temporarily unavailable. This should prevent from `vmbackupmanager` termination in this case. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5859).

* BUGFIX: downgrade Go builder from `1.22.0` to `1.21.7`, since `1.22.0` contains [the bug](https://github.com/golang/go/issues/65705), which can lead to deadlocked HTTP connections to remote storage systems, scrape targets and service discovery endpoints at [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/). This may result in incorrect service discovery, target scraping and failed sending samples to remote storage.
* BUGFIX: all VictoriaMetrics components: return back periodic closing of incoming connections to `-httpListenAddr` every 2 minutes, which was disabled in [v1.98.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.98.0) when addressing [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1636997037). See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1961891450) for details on why the periodic closing of incoming connections has been returned back.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): accept OpenTelemetry data at `/opentelemetry/v1/metrics`, since the `/v1/metrics` suffix is hardcoded at [OpenTelemetry protocol specification](https://opentelemetry.io/docs/specs/otlp/#otlphttp-request).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix possible deadlock when [sharding among remote storages](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages) is enabled with `-remoteWrite.shardByURL` command-line flag. Thanks to @penguinlav for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5834) for [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5833).
* BUGFIX: fix the misleading error `0ms is out of allowed range [0 ...` when passing `step=0` to [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query) or [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5795).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fixed floating-point error when parsing time in RFC3339 format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5801) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): consistently sort groups by name and filename on `/groups` page in UI. This should prevent non-deterministic sorting for groups with identical names.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix Popper display issues. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5842).
* BUGFIX: [vmselect](https://docs.victoriametrics.com/victoriametrics/): format time with milliseconds precision when `__timestamp__:rfc3339` is specified for [/api/v1/export/csv](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-export-csv-data) API response. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5837) for details.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly construct the destination label in [label_join](https://docs.victoriametrics.com/victoriametrics/metricsql/#label_join) if it is used as source label. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5881) for details.

## [v1.98.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.98.0)

Released at 2024-02-14

* SECURITY: upgrade Go builder from Go1.21.6 to Go1.22.0. See [the list of issues addressed in Go1.21.7](https://github.com/golang/go/issues?q=milestone%3AGo1.21.7+label%3ACherryPickApproved),
  plus [the changelog for Go1.22.0](https://go.dev/doc/go1.22).

* FEATURE: all VictoriaMetrics components: add support for TLS client certificate verification at `-httpListenAddr` (aka [mTLS](https://en.wikipedia.org/wiki/Mutual_authentication)). See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#mtls-protection) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5458).
* FEATURE: all VictoriaMetrics components: add support for accepting http requests over multiple distinct TCP addresses. This can be done by starting VictoriaMetrics component with multiple `-httpListenAddr` command-line flags. For example, `./victoria-metrics -httpListenAddr=some-host:12345 -httpListenAddr=localhost:8428` starts VictoriaMetrics, which accepts incoming http requests at both `some-host:12345` and `localhost:8428`. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1470).
* FEATURE: all VictoriaMetrics components: add support for empty command-line flag values in short array notation. For example, `-remoteWrite.sendTimeout=',20s,'` specifies three `-remoteWrite.sendTimeout` values - the first one and the last one have default values (`30s` in this case), while the second one is set to `20s`.
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add support for [mTLS](https://en.wikipedia.org/wiki/Mutual_authentication)-based request routing to different backends depending on the subject of the TLS certificate provided by the client. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#mtls-based-request-routing) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1547).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [single-node VictoriaMetrics](https://docs.victoriametrics.com): add support for data ingestion via [DataDog lambda extension](https://docs.datadoghq.com/serverless/libraries_integrations/extension/) aka `/api/beta/sketches` endpoint. See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/datadog/) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3091). Thanks to @AndrewChubatiuk for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5584).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add `-remoteWrite.tlsHandshakeTimeout` command-line flag for tuning the timeout needed for establishing TLS connections to `-remoteWrite.url`. Bigger tls handshake timeouts should reduce the probability of `http: TLS handshake error from ...: EOF` errors at the remote storage side under high load. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1699).
* FEATURE: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add `-disableReroutingOnUnavailable` command-line flag to `vminsert`, which can be used for reducing resource usage spikes at `vmstorage` nodes during rolling restart. See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#improving-re-routing-performance-during-restart). Thanks to @Muxa1L for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5713).
* FEATURE: add `-search.resetRollupResultCacheOnStartup` command-line flag for resetting [query cache](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#rollup-result-cache) on startup. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/834).
* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): propagate label filters across [label_set](https://docs.victoriametrics.com/victoriametrics/metricsql/#label_set) and [alias](https://docs.victoriametrics.com/victoriametrics/metricsql/#alias) functions. For example, `label_set(q1, "a", "b") + q2{c="d"}` is automatically transformed to `label_set(q1{c="d"}, "a", "b") + q2{a="b",c="d"}` now. This should improve performance for such queries. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1827#issuecomment-1654095358).
* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): add [sum_eq_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#sum_eq_over_time), [sum_gt_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#sum_gt_over_time) and [sum_le_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#sum_le_over_time) functions. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4641).
* FEATURE: [dashboards/vmagent](https://grafana.com/grafana/dashboards/12683): add `Targets scraped/s` stat panel showing the number of targets scraped by the vmagent per-second.
* FEATURE: [dashboards/all](https://grafana.com/orgs/victoriametrics): add new panel `CPU spent on GC`. It should help identifying cases when too much CPU is spent on garbage collection, and advice users on how this can be addressed.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): support [filtering](https://prometheus.io/docs/prometheus/latest/querying/api/#rules) for `/api/v1/rules` API. See [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5749) by @victoramsantos.
* FEATURE: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/): support client-side TLS configuration for creating and deleting snapshots via `-snapshot.tls*` cmd-line flags. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5724). Thanks to @khushijain21 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5738).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add a time picker to the "Logs Explorer" page. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5673).

* BUGFIX: all VictoriaMetrics components: do not close connections to `-httpListenAddr` every 2 minutes. This behavior didn't help spreading load among multiple backend servers behind load-balancing TCP proxy. Instead, it could lead to hard-to-debug issues like [this one](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1636997037). If you still need periodically closing client connections because of some reason, then pass the desired timeout to `-http.connTimeout` command-line flag.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduce CPU usage when `-promscrape.dropOriginalLabels` command-line flag is set. This issue has been introduced in [v1.96.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.96.0) when addressing [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5389).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly release memory during config reload. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4690).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly expose `vmauth_unauthorized_user_concurrent_requests_capacity`, `vmauth_unauthorized_user_concurrent_requests_current`, `vmauth_user_concurrent_requests_capacity` and `vmauth_user_concurrent_requests_current` [metrics](https://docs.victoriametrics.com/victoriametrics/vmauth/#monitoring) after [config reload](https://docs.victoriametrics.com/victoriametrics/vmauth/#config-reload). Previously these metrics didn't work after config reload.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly propagate [label filters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) from multiple arguments passed to [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum({job="foo"}, {job="bar"}) by (job) + a` was improperly optimized to `sum({job="foo"}, {job="bar"}) by (job) + a{job="foo"}` before being executed. This could lead to unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5604).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle precision errors when calculating [changes](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes), [changes_prometheus](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes_prometheus), [increases_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#increases_over_time) and [resets](https://docs.victoriametrics.com/victoriametrics/metricsql/#resets) functions. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/767).
* BUGFIX: all VictoriaMetrics components: consistently return 200 http status code from [`/-/reload` endpoint](https://docs.victoriametrics.com/victoriametrics/vmagent/#configuration-update). Previously [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) was returning 204 http status code. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5774).
* BUGFIX: properly store [staleness markers](https://docs.victoriametrics.com/victoriametrics/vmagent/#prometheus-staleness-markers) for [self-scraped metrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring) on single-node VictoriaMetrics shutdown. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/943).
* BUGFIX: prevent from possible `too big indexBlockSize` panic when samples with too long label values (~64Kb) are ingested into VictoriaMetrics.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix the graph dragging for Firefox and Safari. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5764).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix handling invalid timezone. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5732).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix the bug where the select does not open. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5728).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): clear entered text in select after selecting a value. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5727).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): improve the operation of the context for autocomplete. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5736), [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5737) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5739) issues.
* BUGFIX: [dashboards](https://grafana.com/orgs/victoriametrics): update `Storage full ETA` panels for Single-node and Cluster dashboards to prevent them from showing negative or blank results caused by increase of deduplicated samples. Deduplicated samples were part of the expression to provide a better estimate for disk usage, but due to sporadic nature of [deduplication](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#deduplication) in VictoriaMetrics it rather produced skewed results. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5747).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): reduce memory usage for ENT version of vmalert for configurations with high number of groups with enabled multitenancy.

## [v1.97.14](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.14)

Released at 2024-12-13

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade base docker image (Alpine) from 3.20.3 to 3.21.0. See [alpine 3.21.0 release notes](https://alpinelinux.org/posts/Alpine-3.21.0-released.html).
* SECURITY: upgrade Go builder from Go1.23.3 to Go1.23.4. See the list of issues addressed in [Go1.23.4](https://github.com/golang/go/issues?q=milestone%3AGo1.23.4+label%3ACherryPickApproved).

* BUGFIX: all VictoriaMetrics components: consistently deduplicate values with stale markers within deduplication interval. Previously, deduplication could randomly prefer stale marker or value on the deduplication interval. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7674) for details. Thanks to @tIGO for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7675).
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly parse the query rollup window specified in milliseconds. Previous implementation could lead to precision issues resulting in the parsed window being smaller by 1ms. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5796) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fix requests routing by host when using `src_hosts`. Previously, request header could be ignored.
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): prevent backup scheduler from scheduling two backups immediately one after another.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): prevent accordion from collapsing when selecting text in headers. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7742).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix query interval display in the instant query info. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7401).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add missing common service labels for docker swarm service discovery when `role` is set to `tasks`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7800).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix possible template collision between rule annotations.

## [v1.97.13](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.13)

Released at 2024-11-29

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return `200 OK` HTTP status code when importing data via [Pushgateway protocol](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-data-in-prometheus-exposition-format) using [multitenant URL format](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#url-format). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3636) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7571).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `TCP` connection timeout for `Kubernetes API server` connection for metric scrapping with `kubernetes_sd_configs`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7127).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix the `resource_group` filter for Azure service discovery on virtual machine scale sets. Previously, this filter did not apply to virtual machine scale sets, causing all virtual machines to be discovered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7630).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly init `ip_filters` for `unauthorized_user` config section. Previously it was ignored and `vmauth` didn't apply `ip_filter` for `unauthorized` access.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly return result for binary operation `^` aka pow at query requests for `NaN` values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7359) for details.

## [v1.97.12](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.12)

Released at 2024-11-15

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): drop rows that do not belong to the current series during import. The dropped rows should belong to another series whose tags are a superset of the current series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7301) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7330). Thanks to @dpedu for reporting and cooperating with the test.
* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): keep the order of resulting time series when `limit_offset` is applied. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7068).
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): properly handle xFilesFactor=0 for `transformRemoveEmptySeries` function. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7337) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly check availability of all the backends before giving up when proxying requests. Previously, vmauth could return an error even if there were healthy backends available. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3061) for details.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fixed unauthorized routing behavior inconsistency. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7543) for details.

## [v1.97.11](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.11)

Released at 2024-11-04

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly set `group_name` and `file` fields for recording rules in `/api/v1/rules`.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent panic when ingesting samples which are outside of configured [retention filters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention-filters). This could happen when backfilling data with retention filters which exclude samples from the backfill range.

## [v1.97.10](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.10)

Released at 2024-10-21

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix error messages rendering from overflowing the screen with long messages. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7207).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly add metrics tags for `opentsdb` migration source. Previously it could have empty values. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7161).
* BUGFIX: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply replication factor when storage node groups are used and replication factor is configured via global value such as `-replicationFactor=2`. Previously, global replication factor was ignored for storage node groups. See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmstorage-groups-at-vmselect) for more information about storage groups configuration.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly apply configuration changes during hot-reload to rule groups that haven't started yet. Previously, configuration updates to such groups could have resulted into blocking all evaluations within the group, until vmalert restart.

## [v1.97.9](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.9)

Released at 2024-10-02

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): consistently return the first non-`NaN` value from [`range_first`](https://docs.victoriametrics.com/victoriametrics/metricsql/#range_first) function across all the returned data points. Previously `NaN` data points weren't replaced with the first non-`NaN` value.

## [v1.97.8](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.8)

Released at 2024-09-23

* SECURITY: upgrade Go builder from Go1.22.5 to Go1.23.1. See the list of issues addressed in [Go1.23.1](https://github.com/golang/go/issues?q=milestone%3AGo1.23.1+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.2 to 3.20.3. See [alpine 3.20.3 release notes](https://alpinelinux.org/posts/Alpine-3.17.10-3.18.9-3.19.4-3.20.3-released.html).

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink` in `Host:Port` format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6912).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly consume messages [from kafka](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/). Previously vmagent could skip some messages during start-up.
* BUGFIX: [vmgateway](https://docs.victoriametrics.com/victoriametrics/vmgateway/): add missing `datadog`, `newrelic`, `opentelemetry` and `pushgateway` routes to the `JWT` authorization routes. Allows prefixed (`prometheus/graphite`) routes for query requests.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly cache empty list of matching time series for the given [labels filter](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering). This type of caching was broken since [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0), which could result in the increased CPU usage when performing queries, which match zero time series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7009).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Fixes start-up crash on Windows OS. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6973) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric `vm_object_references{type="indexdb"}`. Previously, it was overcounted.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly ingest stale NaN samples. Previously it could be dropped if series didn't exist at storage node. See this issue [https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5069] for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly track `vm_missing_tsids_for_metric_id_total` metric. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6931) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): do not send notifications without labels to Alertmanager. Such notifications are rejected by Alertmanager anyway. Before, vmalert could send alert notifications even if no label-value pairs left after applying `alert_relabel_configs` from [notifier config](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly update value of variable `$activeAt` in rules annotation during replay mode. Before, `$activeAt` could have provided incorrect values during replay.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle `c1 AND c2` and `c1 OR c1` queries for constants `c1` and `c2`. Previously such queries could return unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6637).
* BUGFIX: all VictoriaMetrics components: increase default value of `-loggerMaxArgLen` cmd-line flag from 1000 to 5000. This should improve visibility on errors produced by very long queries.

## [v1.97.7](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.7)

Released at 2024-08-28

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fixes `proxy_url` authorization for scrape targets. Previously proxy authorization configuration was ignored for `https` targets. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6771) issue for details.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6784).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect HTTP headers defined in [notifier configuration file](https://docs.victoriametrics.com/victoriametrics/vmalert/#notifier-configuration-file) for each request to notifiers. Previously, this param was ignored by mistake.
* BUGFIX: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): respect `-search.denyPartialResponse` cmd-line flag and `deny_partial_response` query GET param when serving requests via Graphite API. Before, partial responses were always denied. Thanks to @penguinlav for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6748).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): account for `-usePromCompatibleNaming` cmd-line flag during when pushing data to remote storages. Thanks to @12345XXX  for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6776).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): fix calculation [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. It was producing incorrect results in case lower buckets. The issue was introduced in [v1.102.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11020) release, see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6714) for the details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/), [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/) and snapshot API: verify correctness of URLs provided via cmd-line flags before executing HTTP requests. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6740) issue for details.
* BUGFIX: all VictoriaMetrics components: forcefully set owner/group for release tars to 1000:1000. This helps to avoid unpacking [issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6788) on systems with limitations around UID:GID configuration. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6846).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly register index metrics for previous index part. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6868) for details.
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix metric names registering in the per-day index for new dates for existing time series when making calls to `/tags/tagSeries` and `/tags/tagMultiSeries` handlers of [Graphite API](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6872/) for details.

## [v1.97.6](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.6)

Released at 2024-07-17

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade Go builder from Go1.22.4 to Go1.22.5. See the list of issues addressed in [Go1.22.5](https://github.com/golang/go/issues?q=milestone%3AGo1.22.5+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.0 to 3.20.1. See [alpine 3.20.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.1-released.html).

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix panic when using multiple topics with the same name when [ingesting metrics from Kafka](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6636) for the details.
* BUGFIX: all VictoriaMetrics components: properly calculate `process_resident_memory_bytes` metric for OS with non-default value of memory page size. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6457) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix path for system links printed on default vmalert's UI page when `-http.pathPrefix` is set.
* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/): properly configure authentication with S3 when `-configFilePath` cmd-line flag is specified.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) enterprise: properly configure authentication with S3 when `-s3.configFilePath` cmd-line flag is specified for reading rule configs.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly specify oauth2 `ClientSecret` when configuring authentication for `notifier.url`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6471) for details. Thanks to @yincongcyincong for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6478).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix incorrect redirection in WebUI of vmalert. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6603) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6620).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add validation for the max value specified for `-retentionPeriod`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6330) for details.
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): **copy row** button in Table view produces unexpected result. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6421) and [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6495).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/victoriametrics/vmalert-tool/): prevent hanging when processing groups without rules. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6500).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix input cursor position reset in modal settings. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6530).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly calculate [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4580#issuecomment-2186659102) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6547). Updates [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2819).

## [v1.97.5](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.5)

Released at 2024-06-07

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade Go builder from Go1.22.2 to Go1.22.4. See the list of issues addressed in [Go1.22.3](https://github.com/golang/go/issues?q=milestone%3AGo1.22.3+label%3ACherryPickApproved) and [Go1.22.4](https://github.com/golang/go/issues?q=milestone%3AGo1.22.4+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.19.1 to 3.20.0. See [alpine 3.20.0 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.0-released.html).

* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix calendar display when `UTC+00:00` timezone is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6239).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): remove redundant requests on the `Explore Cardinality` page. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6240).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix handling of URL params for browser history navigation (back and forward buttons). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6126) and [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5516#issuecomment-1867507232).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): skip empty data blocks before sending to the remote write destination. Thanks to @viperstars for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6241).
* BUGFIX: properly estimate the needed memory for query execution if it has the format [`aggr_func`](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions)([`rollup_func[d]`](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) (for example, `sum(rate(request_duration_seconds_bucket[5m]))`). This should allow performing aggregations over bigger number of time series when VictoriaMetrics runs in environments with small amounts of available memory. The issue has been introduced in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/5138eaeea0791caa34bcfab410e0ca9cd253cd8f) in [v1.83.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1830).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): correctly apply `-inmemoryDataFlushInterval` when it's set to minimum supported value 1s.
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly release memory used for metrics during config reload. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6247).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): filter deleted label names and values from [`/api/v1/labels`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels) and [`/api/v1/label/.../values`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) responses when `match[]` filter matches small number of time series. The issue was introduced [v1.81.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1810).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix misleading error logs in vmalert's stdout when unsupported HTTP path is requested.
* BUGFIX: retry files delete attempts on vXFS file system for `EEXIST` error type. See the [related issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6396). Thanks to @pludov for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6398).

## [v1.97.4](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.4)

Released at 2024-04-19

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade Go builder from Go1.21.7 to Go1.22.2. See [the list of issues addressed in Go1.22.1](https://github.com/golang/go/issues?q=milestone%3AGo1.22.1+label%3ACherryPickApproved) and [the list of issues addressed in Go1.22.2](https://github.com/golang/go/issues?q=milestone%3AGo1.22.2+label%3ACherryPickApproved).

* BUGFIX: prevent from automatic deletion of newly registered time series when it is queried immediately after the addition. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5948) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959) issue.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `Host` header in requests to scrape targets when [`server_name` option at `tls_config`](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#tls_config) is set. Previously the `Host` header was set incorrectly to the target hostname in this case.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly set `Host` header in requests to scrape targets if it is specified via [`headers` option](https://docs.victoriametrics.com/victoriametrics/sd_configs/#http-api-client-options). Thanks to @fholzer for [the bugreport](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5969) and [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5970).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): set correct `endsAt` value in notifications sent to the Alertmanager. Previously, a rule with evaluation intervals lower than 10s could never be triggered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5995) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly account for `-rule.resendDelay` for alerting rules that are constantly switching state from inactive to firing. Before, notifications for such rules could have been skipped if state change happened more often than `-rule.resendDelay`. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6028) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect `-remoteWrite.maxBatchSize` at shutdown period. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6025). Thanks to @jiekun for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6039).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): supported any status codes from the range 200-299 from alertmanager. Previously, only 200 status code considered a successful action. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6110).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): avoid blocking `/api/v1/rules`, `/api/v1/alerts`, `/metrics` APIs when alerting rule uses template functions `query`, which could takes a while to execute. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6079).
* BUGFIX: [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): fix panic when performing a restore from GCS. Previously, filters for GCS objects were not properly set which caused objects to be returned instead of prefixes.

## [v1.97.3](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.3)

Released at 2024-03-01

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* BUGFIX: downgrade Go builder from `1.22.0` to `1.21.7`, since `1.22.0` contains [the bug](https://github.com/golang/go/issues/65705), which can lead to deadlocked HTTP connections to remote storage systems, scrape targets and service discovery endpoints at [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/). This may result in incorrect service discovery, target scraping and failed sending samples to remote storage.
* BUGFIX: take into account `-search.maxUniqueTimeseries` limit at [/api/v1/labels](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels), [/api/v1/label/.../values](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) and [/api/v1/series](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1series). This limit was ignored at these endpoints starting from [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0) when trying to address [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5055). It has been appeared that this can result in high CPU usage when heavyweight queries hit these endpoints. This can prevent from executing lightweight queries to these endpoints. It is better to return `limit exceeded` error to heavyweight queries instead of burning CPU.
* BUGFIX: all VictoriaMetrics components: return back periodic closing of incoming connections to `-httpListenAddr` every 2 minutes, which was disabled in [v1.97.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.2) when addressing [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1636997037). See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1961891450) for details on why the periodic closing of incoming connections has been returned back.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): accept OpenTelemetry data at `/opentelemetry/v1/metrics`, since the `/v1/metrics` suffix is hardcoded at [OpenTelemetry protocol specification](https://opentelemetry.io/docs/specs/otlp/#otlphttp-request).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix possible deadlock when [sharding among remote storages](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages) is enabled with `-remoteWrite.shardByURL` command-line flag. Thanks to @penguinlav for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5834) for [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5833).
* BUGFIX: fix the misleading error `0ms is out of allowed range [0 ...` when passing `step=0` to [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
  or [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5795).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fixed floating-point error when parsing time in RFC3339 format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5801) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): consistently sort groups by name and filename on `/groups` page in UI. This should prevent non-deterministic sorting for groups with identical names.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): reduce memory usage for ENT version of vmalert for configurations with high number of groups with enabled multitenancy.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly construct the destination label in [label_join](https://docs.victoriametrics.com/victoriametrics/metricsql/#label_join) if it is used as source label. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5881) for details.

## [v1.97.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.2)

Released at 2024-02-14

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade Go builder from Go1.21.6 to Go1.22.0. See [the list of issues addressed in Go1.21.7](https://github.com/golang/go/issues?q=milestone%3AGo1.21.7+label%3ACherryPickApproved),
  plus [the changelog for Go1.22.0](https://go.dev/doc/go1.22).

* BUGFIX: all VictoriaMetrics components: do not close connections to `-httpListenAddr` every 2 minutes. This behavior didn't help spreading load among multiple backend servers behind load-balancing TCP proxy. Instead, it could lead to hard-to-debug issues like [this one](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1636997037). If you still need periodically closing client connections because of some reason, then pass the desired timeout to `-http.connTimeout` command-line flag.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduce CPU usage when `-promscrape.dropOriginalLabels` command-line flag is set. This issue has been introduced in [v1.96.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.96.0) when addressing [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5389).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly release memory during config reload. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4690).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly expose `vmauth_unauthorized_user_concurrent_requests_capacity`, `vmauth_unauthorized_user_concurrent_requests_current`, `vmauth_user_concurrent_requests_capacity` and `vmauth_user_concurrent_requests_current` [metrics](https://docs.victoriametrics.com/victoriametrics/vmauth/#monitoring) after [config reload](https://docs.victoriametrics.com/victoriametrics/vmauth/#config-reload). Previously these metrics didn't work after config reload.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly propagate [label filters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) from multiple arguments passed to [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum({job="foo"}, {job="bar"}) by (job) + a` was improperly optimized to `sum({job="foo"}, {job="bar"}) by (job) + a{job="foo"}` before being executed. This could lead to unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5604).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle precision errors when calculating [changes](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes), [changes_prometheus](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes_prometheus), [increases_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#increases_over_time) and [resets](https://docs.victoriametrics.com/victoriametrics/metricsql/#resets) functions. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/767).
* BUGFIX: properly store [staleness markers](https://docs.victoriametrics.com/victoriametrics/vmagent/#prometheus-staleness-markers) for [self-scraped metrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring) on single-node VictoriaMetrics shutdown. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/943).
* BUGFIX: prevent from possible `too big indexBlockSize` panic when samples with too long label values (~64Kb) are ingested into VictoriaMetrics.

## [v1.97.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.1)

Released at 2024-02-01

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for `username_file` option at `basic_auth` section in [`scrape_configs`](https://docs.victoriametrics.com/victoriametrics/sd_configs/#http-api-client-options). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5511). Thanks to @wasim-nihal for [the initial implementation](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5720).

* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix the increased CPU usage when sending the data to remote storage. The issue has been introduced in [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0).
* BUGFIX: fix `runtime error: slice bounds out of range` panic, which can occur during query execution. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5733). The bug has been introduced in `v1.97.0`.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle `avg_over_time({some_filter}[d]) keep_metric_names` queries, where [`some_filter`](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) matches multiple time series with multiple names, while `d` is bigger or equal to `3h`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5556).
* BUGFIX: [dashboards/single](https://grafana.com/grafana/dashboards/10229): fix typo in query for `version` annotation which falsely produced many version change events.

## [v1.97.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.0)

Released at 2024-01-30

**v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1970) release**

* SECURITY: upgrade base docker image (Alpine) from 3.19.0 to 3.19.1. See [alpine 3.19.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.19.1-released.html).
* SECURITY: upgrade Go builder from Go1.21.5 to Go1.21.6. See [the list of issues addressed in Go1.21.6](https://github.com/golang/go/issues?q=milestone%3AGo1.21.6+label%3ACherryPickApproved).

* FEATURE: improve new [time series](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#time-series) registration speed on systems with high number of CPU cores. Thanks to @misutoth for the initial idea and [implementation](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5212).
* FEATURE: make [background merge](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#storage) more responsive and scalable. This should help the following issues: [5190](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5190), [3425](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425), [648](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648).
* FEATURE: [graphite](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#render-api): add support for negative index in `groupByNode` and `aliasByNode` functions. Thanks to @rbizos for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5581).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for discovering [Hetzner Cloud](https://www.hetzner.com/cloud) and [Hetzner Robot](https://docs.hetzner.com/robot) scrape targets. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3154) and [these docs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#hetzner_sd_configs).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for [DataDog v2 data ingestion protocol](https://docs.datadoghq.com/api/latest/metrics/#submit-metrics). See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/datadog/) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4451).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduce initial memory usage when scraping targets, which return huge responses (for example, [kube-state-metrics](https://github.com/kubernetes/kube-state-metrics) in large Kubernetes cluster may return 100MB+ responses), without the need to explicitly enable [stream parsing mode](https://docs.victoriametrics.com/victoriametrics/vmagent/#stream-parsing-mode). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5567).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): expose ability to set OAuth2 endpoint parameters per each `-remoteWrite.url` via the command-line flag `-remoteWrite.oauth2.endpointParams`. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmagent/#advanced-usage). Thanks to @mhill-holoplot for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5427).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add ability to set `attach_metadata.node=true` option for all the [`kubernetes_sd_configs`](https://docs.victoriametrics.com/victoriametrics/sd_configs/#kubernetes_sd_configs) defined at [`-promscrape.config`](https://docs.victoriametrics.com/victoriametrics/vmagent/#quick-start) via `-promscrape.kubernetes.attachNodeMetadataAll` command-line flag. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4640). Thanks to @wasim-nihal for [the initial implementation](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5593).
* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): do not send unfinished [aggregation state](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/) on shutdown or [hot config reload](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/configuration/#configuration-update) by default, as it tend to produce unexpected anomalies with lower values. The old behavior can be restored by specifying `flush_on_shutdown: true` setting in streaming aggregation config. See more details [here](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#aggregation-outputs).
* FEATURE: [streaming aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): expand `%{ENV_VAR}` placeholders in config files with the corresponding environment variable values.
* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmagent/): expose ability to set OAuth2 endpoint parameters via the following command-line flags:
  * `-datasource.oauth2.endpointParams` for `-datasource.url`
  * `-notifier.oauth2.endpointParams` for `-notifier.url`
  * `-remoteRead.oauth2.endpointParams` for `-remoteRead.url`
  * `-remoteWrite.oauth2.endpointParams` for `-remoteWrite.url`
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add ability to proxy incoming requests to different backends based on the requested host via `src_hosts` option at `url_map`. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#generic-http-proxy-for-different-backends).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): expose `vmauth_user_request_backend_errors_total` and `vmauth_unauthorized_user_request_backend_errors_total` [metrics](https://docs.victoriametrics.com/victoriametrics/vmauth/#monitoring), which track the number of failed requests because of backend errors. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5565).
* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add an ability to specify additional labels for [per-user metrics](https://docs.victoriametrics.com/victoriametrics/vmauth/#monitoring) via `metric_labels` section. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5565).
* FEATURE: all VictoriaMetrics components: break HTTP client connection if an error occurs after the server at `-httpListenAddr` already sent response status code. Previously such an error couldn't be detected at client side. Now the client will get an error about invalid chunked response. The error message is simultaneously written to the server log and in the last line of the response. This should help detecting errors when migrating data between VictoriaMetrics instances by [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5645).
* FEATURE: all VictoriaMetrics components: add ability to specify arbitrary HTTP headers to send with every request to `-pushmetrics.url`. See [`push metrics` docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#push-metrics).
* FEATURE: all VictoriaMetrics components: add `-metrics.exposeMetadata` command-line flag, which allows displaying `TYPE` and `HELP` metadata at `/metrics` page exposed at `-httpListenAddr`. This may be needed when the `/metrics` page is scraped by collector, which requires the `TYPE` and `HELP` metadata such as [Google Cloud Managed Prometheus](https://cloud.google.com/stackdriver/docs/managed-prometheus/troubleshooting#missing-metric-type).
* FEATURE: all VictoriaMetrics components: add ability to dynamically re-read auth keys and passwords from files and urls when using `file:///path/to/file` or `http://host/path` syntax for the following command-line flags: `-configAuthKey`, `-deleteAuthKey`, `-flagsAuthKey`, `-forceMergeAuthKey`, `-forceFlushAuthKey`, `-httpAuth.password`, `-metricsAuthKey`, `-pprofAuthKey`, `-reloadAuthKey`, `-search.resetCacheAuthKey`, `-snapshotAuthKey`. For example, `-httpAuth.password=file:///path/to/password`. See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#security) for details.
* FEATURE: [dashboards/cluster](https://grafana.com/grafana/dashboards/11176): add panels for detailed visualization of traffic usage between vmstorage, vminsert, vmselect components and their clients. New panels are available in the rows dedicated to specific components.
* FEATURE: [dashboards/cluster](https://grafana.com/grafana/dashboards/11176): update "Slow Queries" panel to show percentage of the slow queries to the total number of read queries served by vmselect. The percentage value should make it more clear for users whether there is a service degradation.
* FEATURE: [dashboards/single](https://grafana.com/grafana/dashboards/10229): change dashboard title from `VictoriaMetrics` to `VictoriaMetrics - single-node`. The new title should provide better understanding of this dashboard purpose.
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): rename cmd-line flag `vm-native-disable-retries` to `vm-native-disable-per-metric-migration` to better reflect its meaning.
* FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): add `-vm-native-src-insecure-skip-verify` and `-vm-native-dst-insecure-skip-verify` command-line flags for native protocol. It can be used for skipping TLS certificate verification when connecting to the source or destination addresses.
* FEATURE: [Alerting rules for VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#alerts): add `job` label to `DiskRunsOutOfSpace` alerting rule, so it is easier to understand to which installation the triggered instance belongs.
* FEATURE: `vmstorage`: add tenant identifier for log messages regarding dropping excessive labels due to limits defined by `-maxLabelsPerTimeseries` or `-maxLabelValueLen` command-line flags. Previously, it was hard to understand to which tenant the dropped labels belong.
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add the ability to export and import query reports:
  * add a `Query Analyzer` page that allows you to build graphs from `JSON` data containing the results of executing a query request.
  * add an `Export query` button to the graph that saves the result of executing the query in `JSON`. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5497).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add `-vmui.defaultTimezone` flag to set a default timezone. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5375) and [these docs](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/app/vmui#timezone-configuration).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): include UTC in the timezone selection dropdown for standardized time referencing. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5375).
* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add the ability to expand/collapse all tracing entries and download tracing data in .json format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5677).
* FEATURE: add [VictoriaMetrics datasource](https://github.com/VictoriaMetrics/victoriametrics-datasource) to docker compose environment. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5363).

* BUGFIX: properly return the list of matching label names and label values from [`/api/v1/labels`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels) and [`/api/v1/label/.../values`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) when the database contains more than `-search.maxUniqueTimeseries` unique [time series](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#time-series) on the selected time range. Previously VictoriaMetrics could return `the number of matching timeseries exceeds ...`  error in this case. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5055).
* BUGFIX: properly return errors from [export APIs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-export-time-series). Previously these errors were silently suppressed. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5649).
* BUGFIX: [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly return full results when `-search.skipSlowReplicas` command-line flag is passed to `vmselect` and when [vmstorage groups](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmstorage-groups-at-vmselect) are in use. Previously partial results could be returned in this case.
* BUGFIX: `vminsert`: properly accept samples via [OpenTelemetry data ingestion protocol](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/) when these samples have no [resource attributes](https://opentelemetry.io/docs/instrumentation/go/resources/). Previously such samples were silently skipped.
* BUGFIX: `vmstorage`: added missing `-inmemoryDataFlushInterval` command-line flag, which was missing in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) after implementing [this feature](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337) in [v1.85.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.85.0).
* BUGFIX: `vmstorage`: properly expire `storage/prefetchedMetricIDs` cache. Previously this cache was never expired, so it could grow big under [high churn rate](https://docs.victoriametrics.com/victoriametrics/faq/#what-is-high-churn-rate). This could result in increasing CPU load over time.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): check `-external.url` schema when starting vmalert, must be `http` or `https`. Before, alertmanager could reject alert notifications if `-external.url` contained no or wrong schema.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): automatically add `exported_` prefix for original evaluation result label if it's conflicted with external or reserved one, previously it was overridden. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5161).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): autogenerate `ALERTS_FOR_STATE` time series for alerting rules with `for: 0`. Previously, `ALERTS_FOR_STATE` was generated only for alerts with `for > 0`. The change aligns with Prometheus behavior. See more details in [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5648).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix data race during hot-config reload. The result of the race could cause all rules from updated group to fail with `context cancelled` error.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): consistently sort results for `q1 or q2` query, so they do not change colors with each refresh in Grafana. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5393).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly return results from [bottomk](https://docs.victoriametrics.com/victoriametrics/metricsql/#bottomk) and `bottomk_*()` functions when some of these results contain NaN values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5506). Thanks to @xiaozongyang for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5509).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle queries, which wrap [rollup functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) with multiple arguments without explicitly specified lookbehind window in square brackets into [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum(quantile_over_time(0.5, process_resident_memory_bytes))` was resulting to `expecting at least 2 args to ...; got 1 args` error. Thanks to @atykhyy for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5414).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): retry on import errors in `vm-native` mode. Before, retries happened only on writes into a network connection between source and destination. But errors returned by server after all the data was transmitted were logged, but not retried.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly assume role with [AWS IRSA authorization](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html). Previously role chaining was not supported. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3822) for details.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): exit if there is config syntax error in [`scrape_config_files`](https://docs.victoriametrics.com/victoriametrics/vmagent/#loading-scrape-configs-from-multiple-files) when `-promscrape.config.strictParse=true`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5508).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly discover targets for `role: endpoints` and `role: endpointslice` in [kubernetes_sd_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#kubernetes_sd_configs). Previously some `endpoints` and `endpointslice` targets could be left undiscovered or some targets could have missing `__meta_*` labels when performing service discovery in busy Kubernetes clusters with large number of pods. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5557).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): respect explicitly set `series_limit: 0` in [scrape_config](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs). This allows removing [`series_limit` restriction](https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter) on a per-`scrape_config` basis when global limit is set via `-promscrape.seriesLimitPerTarget`. Previously, `0` value was ignored in favor of `-promscrape.seriesLimitPerTarget`.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): do not discover scrape targets for already terminated pods and containers in [`kubernetes_sd_configs`](https://docs.victoriametrics.com/victoriametrics/sd_configs/#kubernetes_sd_configs). Such pods and containers cannot be scraped and cannot resurrect, so there is no sense in generating scrape targets for them.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly follow redirects to another hostnames when `follow_redirects: true` option is set in [`scrape_configs`](https://docs.victoriametrics.com/victoriametrics/sd_configs/#http-api-client-options) while [stream parsing mode](https://docs.victoriametrics.com/victoriametrics/vmagent/#stream-parsing-mode) is disabled. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1945) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4931).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix a link for the statistic inaccuracy explanation in the cardinality explorer tool. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5460).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix the display of autocomplete results and cache the results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5472) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5470).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): send `step` param for instant queries. The change reverts [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3896) due to reasons explained in [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3896#issuecomment-1896704401).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix the `Enter` key press issue in the `Query` field when using autocomplete. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5667).
* BUGFIX: all: fix potential panic during components shutdown when [metrics push](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#push-metrics) is configured. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5548). Thanks to @zhdd99 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5549).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly process queries with too big lookbehind window such as `foo[100y]`. Previously, such queries could return empty responses even if `foo` is present in database. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5553).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle possible negative results caused by float operations precision error in rollup functions like rate() or increase(). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5571).
* BUGFIX: `vmselect`: vmsingle/vmselect returns http status 429 (TooManyRequests) instead of 503 (ServiceUnavailable) when max concurrent requests limit is reached.
* BUGFIX: `vmselect`: set proper timestamps in [instant query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query) results if the query contains [rollup functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) with lookbehind windows in square brackets exceeding 3 hours. For example, `sum(avg_over_time(up[24h]))`. This bug has been introduced in [v1.95.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1950). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5659) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5730) issues.

## [v1.96.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.96.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1960)

## [v1.95.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.95.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1951)

## [v1.95.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.95.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1950)

## [v1.94.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.94.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1940)

## [v1.93.16](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.16)

Released at 2024-07-17

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade Go builder from Go1.22.4 to Go1.22.5. See the list of issues addressed in [Go1.22.5](https://github.com/golang/go/issues?q=milestone%3AGo1.22.5+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.20.0 to 3.20.1. See [alpine 3.20.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.1-released.html).

* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/): properly configure authentication with S3 when `-configFilePath` cmd-line flag is specified.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix path for system links printed on default vmalert's UI page when `-http.pathPrefix` is set.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix incorrect redirection in WebUI of vmalert. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6603) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6620).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) enterprise: properly configure authentication with S3 when `-s3.configFilePath` cmd-line flag is specified for reading rule configs.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly specify oauth2 `ClientSecret` when configuring authentication for `notifier.url`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6471) for details. Thanks to @yincongcyincong for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6478).
* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): **copy row** button in Table view produces unexpected result. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6421) and [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6495).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly calculate [histogram_quantile](https://docs.victoriametrics.com/victoriametrics/metricsql/#histogram_quantile) over Prometheus buckets with inconsistent values. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4580#issuecomment-2186659102) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6547). Updates [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2819).

## [v1.93.15](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.15)

Released at 2024-06-07

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade Go builder from Go1.22.2 to Go1.22.4. See the list of issues addressed in [Go1.22.3](https://github.com/golang/go/issues?q=milestone%3AGo1.22.3+label%3ACherryPickApproved) and [Go1.22.4](https://github.com/golang/go/issues?q=milestone%3AGo1.22.4+label%3ACherryPickApproved).
* SECURITY: upgrade base docker image (Alpine) from 3.19.1 to 3.20.0. See [alpine 3.20.0 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.0-released.html).

* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix calendar display when `UTC+00:00` timezone is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6239).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): skip empty data blocks before sending to the remote write destination. Thanks to @viperstars for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6241).
* BUGFIX: properly estimate the needed memory for query execution if it has the format [`aggr_func`](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions)([`rollup_func[d]`](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) (for example, `sum(rate(request_duration_seconds_bucket[5m]))`). This should allow performing aggregations over bigger number of time series when VictoriaMetrics runs in environments with small amounts of available memory. The issue has been introduced in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/5138eaeea0791caa34bcfab410e0ca9cd253cd8f) in [v1.83.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1830).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): filter deleted label names and values from [`/api/v1/labels`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labels) and [`/api/v1/label/.../values`](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1labelvalues) responses when `match[]` filter matches small number of time series. The issue was introduced [v1.81.0](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2022/#v1810).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): fix misleading error logs in vmalert's stdout when unsupported HTTP path is requested.
* BUGFIX: retry files delete attempts on vXFS file system for `EEXIST` error type. See the [related issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6396). Thanks to @pludov for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6398).

## [v1.93.14](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.14)

Released at 2024-04-19

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade Go builder from Go1.21.7 to Go1.22.2. See [the list of issues addressed in Go1.22.1](https://github.com/golang/go/issues?q=milestone%3AGo1.22.1+label%3ACherryPickApproved) and [the list of issues addressed in Go1.22.2](https://github.com/golang/go/issues?q=milestone%3AGo1.22.2+label%3ACherryPickApproved).

* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): set correct `endsAt` value in notifications sent to the Alertmanager. Previously, a rule with evaluation intervals lower than 10s could never be triggered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5995) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): properly account for `-rule.resendDelay` for alerting rules that are constantly switching state from inactive to firing. Before, notifications for such rules could have been skipped if state change happened more often than `-rule.resendDelay`. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6028) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): respect `-remoteWrite.maxBatchSize` at shutdown period. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6025). Thanks to @jiekun for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6039).
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): supported any status codes from the range 200-299 from alertmanager. Previously, only 200 status code considered a successful action. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6110).

## [v1.93.13](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.13)

Released at 2024-03-01

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* BUGFIX: downgrade Go builder from `1.22.0` to `1.21.7`, since `1.22.0` contains [the bug](https://github.com/golang/go/issues/65705), which can lead to deadlocked HTTP connections to remote storage systems, scrape targets and service discovery endpoints at [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/). This may result in incorrect service discovery, target scraping and failed sending samples to remote storage.
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): accept OpenTelemetry data at `/opentelemetry/v1/metrics`, since the `/v1/metrics` suffix is hardcoded at [OpenTelemetry protocol specification](https://opentelemetry.io/docs/specs/otlp/#otlphttp-request).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix possible deadlock when [sharding among remote storages](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages) is enabled with `-remoteWrite.shardByURL` command-line flag. Thanks to @penguinlav for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5834) for [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5833).

* BUGFIX: fix the misleading error `0ms is out of allowed range [0 ...` when passing `step=0` to [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
  or [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5795).
* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fixed floating-point error when parsing time in RFC3339 format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5801) for details.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmalert): consistently sort groups by name and filename on `/groups` page in UI. This should prevent non-deterministic sorting for groups with identical names.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly construct the destination label in [label_join](https://docs.victoriametrics.com/victoriametrics/metricsql/#label_join) if it is used as source label. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5881) for details.

## [v1.93.12](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.12)

Released at 2024-02-14

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade Go builder from Go1.21.6 to Go1.22.0. See [the list of issues addressed in Go1.21.7](https://github.com/golang/go/issues?q=milestone%3AGo1.21.7+label%3ACherryPickApproved), plus [the changelog for Go1.22.0](https://go.dev/doc/go1.22).

* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly propagate [label filters](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) from multiple arguments passed to [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum({job="foo"}, {job="bar"}) by (job) + a` was improperly optimized to `sum({job="foo"}, {job="bar"}) by (job) + a{job="foo"}` before being executed. This could lead to unexpected results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5604).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle precision errors when calculating [changes](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes), [changes_prometheus](https://docs.victoriametrics.com/victoriametrics/metricsql/#changes_prometheus), [increases_over_time](https://docs.victoriametrics.com/victoriametrics/metricsql/#increases_over_time) and [resets](https://docs.victoriametrics.com/victoriametrics/metricsql/#resets) functions. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/767).
* BUGFIX: properly store [staleness markers](https://docs.victoriametrics.com/victoriametrics/vmagent/#prometheus-staleness-markers) for [self-scraped metrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring) on single-node VictoriaMetrics shutdown. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/943).
* BUGFIX: prevent from possible `too big indexBlockSize` panic when samples with too long label values (~64Kb) are ingested into VictoriaMetrics.

## [v1.93.11](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.11)

Released at 2024-02-01

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade base docker image (Alpine) from 3.19.0 to 3.19.1. See [alpine 3.19.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.19.1-released.html).

* BUGFIX: properly return errors from [export APIs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-export-time-series). Previously these errors were silently suppressed. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5649).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly discover targets for `role: endpoints` and `role: endpointslice` in [kubernetes_sd_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#kubernetes_sd_configs). Previously some `endpoints` and `endpointslice` targets could be left undiscovered or some targets could have missing `__meta_*` labels when performing service discovery in busy Kubernetes clusters with large number of pods. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5557).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): respect explicitly set `series_limit: 0` in [scrape_config](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs). This allows removing [`series_limit` restriction](https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter) on a per-`scrape_config` basis when global limit is set via `-promscrape.seriesLimitPerTarget`. Previously, `0` value was ignored in favor of `-promscrape.seriesLimitPerTarget`.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly process queries with too big lookbehind window such as `foo[100y]`. Previously, such queries could return empty responses even if `foo` is present in database. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5553).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle possible negative results caused by float operations precision error in rollup functions like rate() or increase(). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5571).

## [v1.93.10](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.10)

Released at 2024-01-17

**v1.93.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.93.x line will be supported for at least 12 months since [v1.93.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1930) release**

* SECURITY: upgrade Go builder from Go1.21.5 to Go1.21.6. See [the list of issues addressed in Go1.21.6](https://github.com/golang/go/issues?q=milestone%3AGo1.21.6+label%3ACherryPickApproved).

* BUGFIX: `vminsert`: properly accept samples via [OpenTelemetry data ingestion protocol](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/) when these samples have no [resource attributes](https://opentelemetry.io/docs/instrumentation/go/resources/). Previously such samples were silently skipped.
* BUGFIX: `vmstorage`: added missing `-inmemoryDataFlushInterval` command-line flag, which was missing in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) after implementing [this feature](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337) in [v1.85.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.85.0).
* BUGFIX: `vmstorage`: properly expire `storage/prefetchedMetricIDs` cache. Previously this cache was never expired, so it could grow big under [high churn rate](https://docs.victoriametrics.com/victoriametrics/faq/#what-is-high-churn-rate). This could result in increasing CPU load over time.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): check `-external.url` schema when starting vmalert, must be `http` or `https`. Before, alertmanager could reject alert notifications if `-external.url` contained no or wrong schema.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly return results from [bottomk](https://docs.victoriametrics.com/victoriametrics/metricsql/#bottomk) and `bottomk_*()` functions when some of these results contain NaN values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5506). Thanks to @xiaozongyang for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5509).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle queries, which wrap [rollup functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) with multiple arguments without explicitly specified lookbehind window in square brackets into [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum(quantile_over_time(0.5, process_resident_memory_bytes))` was resulting to `expecting at least 2 args to ...; got 1 args` error. Thanks to @atykhyy for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5414).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): properly assume role with [AWS IRSA authorization](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html). Previously role chaining was not supported. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3822) for details.
* BUGFIX: all: fix potential panic during components shutdown when [metrics push](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#push-metrics) is configured. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5548). Thanks to @zhdd99 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5549).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): check for Error field in response from influx client during migration. Before, only network errors were checked. Thanks to @wozz for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5446).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): retry on import errors in `vm-native` mode. Before, retries happened only on writes into a network connection between source and destination. But errors returned by server after all the data was transmitted were logged, but not retried.

## [v1.93.9](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.9)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1939)

## [v1.93.8](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.8)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1938)

## [v1.93.7](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.7)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1937)

## [v1.93.6](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.6)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1936)

## [v1.93.5](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.5)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1935)

## [v1.93.4](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.4)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1934)

## [v1.93.3](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.3)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1933)

## [v1.93.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.2)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1932)

## [v1.93.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1931)

## [v1.93.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1930)

## [v1.92.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.92.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1921)

## [v1.92.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.92.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1920)

## [v1.91.3](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.91.3)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1913)

## [v1.91.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.91.2)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1912)

## [v1.91.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.91.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1911)

## [v1.91.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.91.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1910)

## [v1.90.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.90.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1900)

## [v1.89.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.89.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1891)

## [v1.89.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.89.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1890)

## [v1.88.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.88.1)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1881)

## [v1.88.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.88.0)

See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/#v1880)

## [v1.87.14](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.14)

Released at 2024-02-01

**v1.87.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.87.x line will be supported for at least 12 months since [v1.87.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1870) release**

* SECURITY: upgrade base docker image (Alpine) from 3.19.0 to 3.19.1. See [alpine 3.19.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.19.1-released.html).

* BUGFIX: properly return errors from [export APIs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-export-time-series). Previously these errors were silently suppressed. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5649).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): respect explicitly set `series_limit: 0` in [scrape_config](https://docs.victoriametrics.com/victoriametrics/sd_configs/#scrape_configs). This allows removing [`series_limit` restriction](https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter) on a per-`scrape_config` basis when global limit is set via `-promscrape.seriesLimitPerTarget`. Previously, `0` value was ignored in favor of `-promscrape.seriesLimitPerTarget`.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly process queries with too big lookbehind window such as `foo[100y]`. Previously, such queries could return empty responses even if `foo` is present in database. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5553).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle possible negative results caused by float operations precision error in rollup functions like rate() or increase(). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5571).

## [v1.87.13](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.13)

Released at 2024-01-17

**v1.87.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes.
The v1.87.x line will be supported for at least 12 months since [v1.87.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v1870) release**

* SECURITY: upgrade Go builder from Go1.21.5 to Go1.21.6. See [the list of issues addressed in Go1.21.6](https://github.com/golang/go/issues?q=milestone%3AGo1.21.6+label%3ACherryPickApproved).

* BUGFIX: `vmstorage`: added missing `-inmemoryDataFlushInterval` command-line flag, which was missing in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) after implementing [this feature](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337) in [v1.85.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.85.0).
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly handle queries, which wrap [rollup functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) with multiple arguments without explicitly specified lookbehind window in square brackets into [aggregate functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#aggregate-functions). For example, `sum(quantile_over_time(0.5, process_resident_memory_bytes))` was resulting to `expecting at least 2 args to ...; got 1 args` error. Thanks to @atykhyy for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5414).
* BUGFIX: `vmstorage`: properly expire `storage/prefetchedMetricIDs` cache. Previously this cache was never expired, so it could grow big under [high churn rate](https://docs.victoriametrics.com/victoriametrics/faq/#what-is-high-churn-rate). This could result in increasing CPU load over time.
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): properly return results from [bottomk](https://docs.victoriametrics.com/victoriametrics/metricsql/#bottomk) and `bottomk_...` functions when some of these results contain NaN values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5506). Thanks to @xiaozongyang for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5509).
* BUGFIX: all: fix potential panic during components shutdown when [metrics push](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#push-metrics) is configured. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5548). Thanks to @zhdd99 for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5549).

## Previous releases

See changes for older releases [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2023/).
