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chore(deps): update quay.io/prometheus/prometheus docker tag to v3.11.2#1623

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chore(deps): update quay.io/prometheus/prometheus docker tag to v3.11.2#1623
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This PR contains the following updates:

Package Update Change
quay.io/prometheus/prometheus minor v3.7.1v3.11.2

Release Notes

prometheus/prometheus (quay.io/prometheus/prometheus)

v3.11.2: 3.11.2 / 2026-04-13

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This release has a fix for a Stored XSS vulnerability that can be triggered via crafted metric names and label values in Prometheus web UI tooltips and metrics explorer. Thanks to Duc Anh Nguyen from TinyxLab for reporting it.

  • [SECURITY] UI: Fix stored XSS via unescaped metric names and labels. CVE-2026-40179. #​18506
  • [ENHANCEMENT] Consul SD: Introduce health_filter field for Health API filtering. #​18499
  • [BUGFIX] Consul SD: Fix filter parameter being incorrectly applied to the Health API. #​18499

v3.11.1: 3.11.1 / 2026-04-07

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  • [BUGFIX] Tracing: Fix startup failure for OTLP HTTP tracing with insecure: true. #​18469

v3.11.0: 3.11.0 / 2026-04-02

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  • [CHANGE] Hetzner SD: The __meta_hetzner_datacenter label is deprecated for the role robot but kept for backward compatibility, use the __meta_hetzner_robot_datacenter label instead. For the role hcloud, the label is deprecated and will stop working after the 1 July 2026. #​17850
  • [CHANGE] Hetzner SD: The __meta_hetzner_hcloud_datacenter_location and __meta_hetzner_hcloud_datacenter_location_network_zone labels are deprecated, use the __meta_hetzner_hcloud_location and __meta_hetzner_hcloud_location_network_zone labels instead. #​17850
  • [CHANGE] Promtool: Redirect debug output to stderr to avoid interfering with stdout-based tool output. #​18346
  • [FEATURE] AWS SD: Add Elasticache Role. #​18099
  • [FEATURE] AWS SD: Add RDS Role. #​18206
  • [FEATURE] Azure SD: Add support for Azure Workload Identity authentication method. #​17207
  • [FEATURE] Discovery: Introduce prometheus_sd_last_update_timestamp_seconds metric to track the last time a service discovery update was sent to consumers. #​18194
  • [FEATURE] Kubernetes SD: Add support for node role selectors for pod roles. #​18006
  • [FEATURE] Kubernetes SD: Introduce pod-based labels for deployment, cronjob, and job controller names: __meta_kubernetes_pod_deployment_name, __meta_kubernetes_pod_cronjob_name and __meta_kubernetes_pod_job_name, respectively. #​17774
  • [FEATURE] PromQL: Add </ and >/ operators for trimming observations from native histograms. #​17904
  • [FEATURE] PromQL: Add experimental histogram_quantiles variadic function for computing multiple quantiles at once. #​17285
  • [FEATURE] TSDB: Add storage.tsdb.retention.percentage configuration to configure the maximum percent of disk usable for TSDB storage. #​18080
  • [FEATURE] TSDB: Add an experimental fast-startup feature flag that writes a series_state.json file to the WAL directory to track active series state across restarts. #​18303
  • [FEATURE] TSDB: Add an experimental st-storage feature flag. When enabled, Prometheus stores ingested start timestamps (ST, previously called Created Timestamp) from scrape or OTLP in the TSDB and Agent WAL, and exposes them via Remote Write 2. #​18062
  • [FEATURE] TSDB: Add an experimental xor2-encoding feature flag for the new TSDB block float sample chunk encoding that is optimized for scraped data and allows encoding start timestamps. #​18062
  • [ENHANCEMENT] HTTP client: Add AWS external_id support for sigv4. #​17916
  • [ENHANCEMENT] Kubernetes SD: Deduplicate deprecation warning logs from the Kubernetes API to reduce noise. #​17829
  • [ENHANCEMENT] TSDB: Remove old temporary checkpoints when creating a Checkpoint. #​17598
  • [ENHANCEMENT] UI: Add autocomplete support for experimental first_over_time and ts_of_first_over_time PromQL functions. #​18318
  • [ENHANCEMENT] Vultr SD: Upgrade govultr library from v2 to v3 for continued security patches and maintenance. #​18347
  • [PERF] PromQL: Improve performance and reduce heap allocations in joins (VectorBinop)/And/Or/Unless. #​17159
  • [PERF] PromQL: Partially address performance regression in native histogram aggregations due to using KahanAdd. #​18252
  • [PERF] Remote write: Optimize WAL watching used for RW sending to reuse internal buffers. #​18250
  • [PERF] TSDB: Optimize LabelValues intersection performance for matchers. #​18069
  • [PERF] UI: Skip restacking on hover in stacked series charts. #​18230
  • [BUGFIX] AWS SD: Fix EC2 SD ignoring the configured endpoint option, a regression from the AWS SDK v2 migration. #​18133
  • [BUGFIX] AWS SD: Fix panic in EC2 SD when DescribeAvailabilityZones returns nil ZoneName or ZoneId. #​18133
  • [BUGFIX] Agent: Fix memory leak caused by duplicate SeriesRefs being loaded as active series. #​17538
  • [BUGFIX] Alerting: Fix alert state incorrectly resetting to pending when the FOR period is increased in the config file. #​18244
  • [BUGFIX] Azure SD: Fix system-assigned managed identity not working when client_id is empty. #​18323
  • [BUGFIX] Consul SD: Fix filter parameter not being applied to health service endpoint, causing Node and Node.Meta filters to be ignored. #​17349
  • [BUGFIX] Kubernetes SD: Fix duplicate targets generated by *DualStack EndpointSlices policies. #​18192
  • [BUGFIX] OTLP: Fix ErrTooOldSample being returned as HTTP 500 instead of 400 in PRW v2 histogram write paths, preventing infinite client retry loops. #​18084
  • [BUGFIX] OTLP: Fix exemplars getting mixed between incorrect parts of a histogram. #​18056
  • [BUGFIX] PromQL: Do not skip histogram buckets in queries where histogram trimming is used. #​18263
  • [BUGFIX] Remote write: Fix prometheus_remote_storage_sent_batch_duration_seconds measuring before the request was sent. #​18214
  • [BUGFIX] Rules: Fix alert state restoration when rule labels contain Go template expressions. #​18375
  • [BUGFIX] Scrape: Fix panic when parsing bare label names without an equal sign in brace-only metric notation. #​18229
  • [BUGFIX] TSDB: Fail early when use-uncached-io feature flag is set on unsupported environments. #​18219
  • [BUGFIX] TSDB: Fall back to CLI flag values when retention is removed from config file. #​18200
  • [BUGFIX] TSDB: Fix memory leaks in buffer pools by clearing reference fields before returning buffers to pools. #​17895
  • [BUGFIX] TSDB: Fix missing mmap of histogram chunks during WAL replay. #​18306
  • [BUGFIX] TSDB: Fix storage.tsdb.retention.time unit mismatch in file causing retention to be 1e6 times longer than configured. #​18200
  • [BUGFIX] Tracing: Fix missing traceID in query log when tracing is enabled, previously only spanID was emitted. #​18189
  • [BUGFIX] UI: Fix tooltip Y-offset drift when using multiple graph panels. #​18228
  • [BUGFIX] UI: Update retention display in runtime info when config is reloaded. #​18200

v3.10.0: 3.10.0 / 2026-02-24

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Prometheus now offers a distroless Docker image variant alongside the default
busybox image. The distroless variant provides enhanced security with a minimal
base image, uses UID/GID 65532 (nonroot) instead of nobody, and removes the
VOLUME declaration. Both variants are available with -busybox and -distroless
tag suffixes (e.g., prom/prometheus:latest-busybox, prom/prometheus:latest-distroless).
The busybox image remains the default with no suffix for backwards compatibility
(e.g., prom/prometheus:latest points to the busybox variant).

For users migrating existing named volumes from the busybox image to the distroless variant, the ownership can be adjusted with:

docker run --rm -v prometheus-data:/prometheus alpine chown -R 65532:65532 /prometheus

Then, the container can be started with the old volume with:

docker run -v prometheus-data:/prometheus prom/prometheus:latest-distroless

User migrating from bind mounts might need to ajust permissions too, depending on their setup.

  • [CHANGE] Alerting: Add alertmanager dimension to following metrics: prometheus_notifications_dropped_total, prometheus_notifications_queue_capacity, prometheus_notifications_queue_length. #​16355
  • [CHANGE] UI: Hide expanded alert annotations by default, enabling more information density on the /alerts page. #​17611
  • [FEATURE] AWS SD: Add MSK Role. #​17600
  • [FEATURE] PromQL: Add fill() / fill_left() / fill_right() binop modifiers for specifying default values for missing series. #​17644
  • [FEATURE] Web: Add OpenAPI 3.2 specification for the HTTP API at /api/v1/openapi.yaml. #​17825
  • [FEATURE] Dockerfile: Add distroless image variant using UID/GID 65532 and no VOLUME declaration. Busybox image remains default. #​17876
  • [FEATURE] Web: Add on-demand wall time profiling under <URL>/debug/pprof/fgprof. #​18027
  • [ENHANCEMENT] PromQL: Add more detail to histogram quantile monotonicity info annotations. #​15578
  • [ENHANCEMENT] Alerting: Independent alertmanager sendloops. #​16355
  • [ENHANCEMENT] TSDB: Experimental support for early compaction of stale series in the memory with configurable threshold stale_series_compaction_threshold in the config file. #​16929
  • [ENHANCEMENT] Service Discovery: Service discoveries are now removable from the Prometheus binary through the Go build tag remove_all_sd and individual service discoveries can be re-added with the build tags enable_<sd name>_sd. Users can build a custom Prometheus with only the necessary SDs for a smaller binary size. #​17736
  • [ENHANCEMENT] Promtool: Support promql syntax features promql-duration-expr and promql-extended-range-selectors. #​17926
  • [PERF] PromQL: Avoid unnecessary label extraction in PromQL functions. #​17676
  • [PERF] PromQL: Improve performance of regex matchers like .*-.*-.*. #​17707
  • [PERF] OTLP: Add label caching for OTLP-to-Prometheus conversion to reduce allocations and improve latency. #​17860
  • [PERF] API: Compute /api/v1/targets/relabel_steps in a single pass instead of re-running relabeling for each prefix. #​17969
  • [PERF] tsdb: Optimize LabelValues intersection performance for matchers. #​18069
  • [BUGFIX] PromQL: Prevent query strings containing only UTF-8 continuation bytes from crashing Prometheus. #​17735
  • [BUGFIX] Web: Fix missing X-Prometheus-Stopping header for /-/ready endpoint in NotReady state. #​17795
  • [BUGFIX] PromQL: Fix PromQL info() function returning empty results when filtering by a label that exists on both the input metric and target_info. #​17817
  • [BUGFIX] TSDB: Fix a bug during exemplar buffer grow/shrink that could cause exemplars to be incorrectly discarded. #​17863
  • [BUGFIX] UI: Fix broken graph display after page reload, due to broken Y axis min encoding/decoding. #​17869
  • [BUGFIX] TSDB: Fix memory leaks in buffer pools by clearing reference fields (Labels, Histogram pointers, metadata strings) before returning buffers to pools. #​17879
  • [BUGFIX] PromQL: info function: fix series without identifying labels not being returned. #​17898
  • [BUGFIX] OTLP: Filter __name__ from OTLP attributes to prevent duplicate labels. #​17917
  • [BUGFIX] TSDB: Fix division by zero when computing stale series ratio with empty head. #​17952
  • [BUGFIX] OTLP: Fix potential silent data loss for sum metrics. #​17954
  • [BUGFIX] PromQL: Fix smoothed interpolation across counter resets. #​17988
  • [BUGFIX] PromQL: Fix panic with @ modifier on empty ranges. #​18020
  • [BUGFIX] PromQL: Fix avg_over_time for a single native histogram. #​18058

v3.9.1: 3.9.1 / 2026-01-07

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  • [BUGFIX] Agent: fix crash shortly after startup from invalid type of object. #​17802
  • [BUGFIX] Scraping: fix relabel keep/drop not working. #​17807

v3.9.0: 3.9.0 / 2026-01-06

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Note for users of Native Histograms

In version 3.9, Native Histograms is no longer experimental, and the feature flag native-histogram has no effect. You must now turn on
the config setting scrape_native_histograms to collect Native Histogram samples from exporters.

Changelog

  • [CHANGE] Native Histograms are no longer experimental! Make the native-histogram feature flag a no-op. Use scrape_native_histograms config option instead. #​17528
  • [CHANGE] API: Add maximum limit of 10,000 sets of statistics to TSDB status endpoint. #​17647
  • [FEATURE] API: Add /api/v1/features for clients to understand which features are supported. #​17427
  • [FEATURE] Promtool: Add start_timestamp field for unit tests. #​17636
  • [FEATURE] Promtool: Add --format seriesjson option to tsdb dump to output just series labels in JSON format. #​13409
  • [FEATURE] Add --storage.tsdb.delay-compact-file.path flag for better interoperability with Thanos. #​17435
  • [FEATURE] UI: Add an option on the query drop-down menu to duplicate that query panel. #​17714
  • [ENHANCEMENT]: TSDB: add flag --storage.tsdb.block-reload-interval to configure TSDB Block Reload Interval. #​16728
  • [ENHANCEMENT] UI: Add graph option to start the chart's Y axis at zero. #​17565
  • [ENHANCEMENT] Scraping: Classic protobuf format no longer requires the unit in the metric name. #​16834
  • [ENHANCEMENT] PromQL, Rules, SD, Scraping: Add native histograms to complement existing summaries. #​17374
  • [ENHANCEMENT] Notifications: Add a histogram prometheus_notifications_latency_histogram_seconds to complement the existing summary. #​16637
  • [ENHANCEMENT] Remote-write: Add custom scope support for AzureAD authentication. #​17483
  • [ENHANCEMENT] SD: add a config label with job name for most prometheus_sd_refresh metrics. #​17138
  • [ENHANCEMENT] TSDB: New histogram prometheus_tsdb_sample_ooo_delta, the distribution of out-of-order samples in seconds. Collected for all samples, accepted or not. #​17477
  • [ENHANCEMENT] Remote-read: Validate histograms received via remote-read. #​17561
  • [PERF] TSDB: Small optimizations to postings index. #​17439
  • [PERF] Scraping: Speed up relabelling of series. #​17530
  • [PERF] PromQL: Small optimisations in binary operators. #​17524, #​17519.
  • [BUGFIX] UI: PromQL autocomplete now shows the correct type and HELP text for OpenMetrics counters whose samples end in _total. #​17682
  • [BUGFIX] UI: Fixed codemirror-promql incorrectly showing label completion suggestions after the closing curly brace of a vector selector. #​17602
  • [BUGFIX] UI: Query editor no longer suggests a duration unit if one is already present after a number. #​17605
  • [BUGFIX] PromQL: Fix some "vector cannot contain metrics with the same labelset" errors when experimental delayed name removal is enabled. #​17678
  • [BUGFIX] PromQL: Fix possible corruption of PromQL text if the query had an empty ignoring() and non-empty grouping. #​17643
  • [BUGFIX] PromQL: Fix resets/changes to return empty results for anchored selectors when all samples are outside the range. #​17479
  • [BUGFIX] PromQL: Check more consistently for many-to-one matching in filter binary operators. #​17668
  • [BUGFIX] PromQL: Fix collision in unary negation with non-overlapping series. #​17708
  • [BUGFIX] PromQL: Fix collision in label_join and label_replace with non-overlapping series. #​17703
  • [BUGFIX] PromQL: Fix bug with inconsistent results for queries with OR expression when experimental delayed name removal is enabled. #​17161
  • [BUGFIX] PromQL: Ensure that rate/increase/delta of histograms results in a gauge histogram. #​17608
  • [BUGFIX] PromQL: Do not panic while iterating over invalid histograms. #​17559
  • [BUGFIX] TSDB: Reject chunk files whose encoded chunk length overflows int. #​17533
  • [BUGFIX] TSDB: Do not panic during resolution reduction of invalid histograms. #​17561
  • [BUGFIX] Remote-write Receive: Avoid duplicate labels when experimental type-and-unit-label feature is enabled. #​17546
  • [BUGFIX] OTLP Receiver: Only write metadata to disk when experimental metadata-wal-records feature is enabled. #​17472

v3.8.1: 3.8.1 / 2025-12-16

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  • [BUGFIX] remote: Fix Remote Write receiver, so it does not send wrong response headers for v1 flow and cause Prometheus senders to emit false partial error log and metrics. #​17683

v3.8.0: 3.8.0 / 2025-11-28

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Note for users of Native Histograms

This is the first release with Native Histograms as a stable feature. However, scraping Native Histograms has to be activated explicitly via the scrape_native_histograms config setting (newly introduced in this release). To ease the transition, the --enable-feature=native-histograms flag is not a complete no-op in this release, but changes the default value of scrape_native_histograms to true. In the next release (v3.9), the feature flag will be a complete no-op, and the default value of scrape_native_histograms will always be false. If you have been using the feature flag so far, the recommended course of action is the following:

  1. Upgrade to v3.8 and keep the feature flag. Everything should work as before.
  2. At your own pace, set scrape_native_histograms to true in all relevant scrape configs. (There is a global and a per-scrape-config version of scrape_native_histograms, allowing granular control if needed. It is a good idea to also set scrape_native_histograms explicitly to false where you do not want to scrape Native Histograms. In this way, you do not depend on the default value of the setting anymore.)
  3. Remove the feature flag and make sure that everything still works as intended.
  4. Now you are ready for an upgrade to the next release (v3.9).
Changelog
  • [CHANGE] Remote-write 2 (receiving): Update to 2.0-rc.4 spec. "created timestamp" (CT) is now called "start timestamp" (ST). #​17411
  • [CHANGE] TSDB: Native Histogram Custom Bounds with a NaN threshold are now rejected. #​17287
  • [FEATURE] OAuth2: support jwt-bearer grant-type (RFC7523 3.1). #​17592
  • [FEATURE] Dockerfile: Add OpenContainers spec labels to Dockerfile. #​16483
  • [FEATURE] SD: Add unified AWS service discovery for ec2, lightsail and ecs services. #​17046
  • [FEATURE] Native histograms are now a stable, but optional feature, use the scrape_native_histograms config setting. #​17232 #​17315
  • [FEATURE] UI: Support anchored and smoothed keyword in promql editor. #​17239
  • [FEATURE] UI: Show detailed relabeling steps for each discovered target. #​17337
  • [FEATURE] Alerting: Add urlQueryEscape to template functions. #​17403
  • [FEATURE] Promtool: Add Remote-Write 2.0 support to promtool push metrics via the --protobuf_message flag. #​17417
  • [ENHANCEMENT] Clarify the docs about handling negative native histograms. #​17249
  • [ENHANCEMENT] Mixin: Add static UID to the remote-write dashboard. #​17256
  • [ENHANCEMENT] PromQL: Reconcile mismatched NHCB bounds in Add and Sub. #​17278
  • [ENHANCEMENT] Alerting: Add "unknown" state for alerting rules that haven't been evaluated yet. #​17282
  • [ENHANCEMENT] Scrape: Allow simultaneous use of classic histogram → NHCB conversion and zero-timestamp ingestion. #​17305
  • [ENHANCEMENT] UI: Add smoothed/anchored in explain. #​17334
  • [ENHANCEMENT] OTLP: De-duplicate any target_info samples with the same timestamp for the same series. #​17400
  • [ENHANCEMENT] Document use_fips_sts_endpoint in sigv4 config sections. #​17304
  • [ENHANCEMENT] Document Prometheus Agent. #​14519
  • [PERF] PromQL: Speed up parsing of variadic functions. #​17316
  • [PERF] UI: Speed up alerts/rules/... pages by not rendering collapsed content. #​17485
  • [PERF] UI: Performance improvement when getting label name and values in promql editor. #​17194
  • [PERF] UI: Speed up /alerts for many firing alerts via virtual scrolling. #​17254
  • [BUGFIX] PromQL: Fix slice indexing bug in info function on churning series. #​17199
  • [BUGFIX] API: Reduce lock contention on /api/v1/targets. #​17306
  • [BUGFIX] PromQL: Consistent handling of gauge vs. counter histograms in aggregations. #​17312
  • [BUGFIX] TSDB: Allow NHCB with -Inf as the first custom value. #​17320
  • [BUGFIX] UI: Fix duplicate loading of data from the API speed up rendering of some pages. #​17357
  • [BUGFIX] Old UI: Fix createExpressionLink to correctly build /graph URLs so links from Alerts/Rules work again. #​17365
  • [BUGFIX] PromQL: Avoid panic when parsing malformed info call. #​17379
  • [BUGFIX] PromQL: Include histograms when enforcing sample_limit. #​17390
  • [BUGFIX] Config: Fix panic if TLS CA file is absent. #​17418
  • [BUGFIX] PromQL: Fix histogram_fraction for classic histograms and NHCB if lower bound is in the first bucket. #​17424

v3.7.3: 3.7.3 / 2025-10-29

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  • [BUGFIX] UI: Revert changed (and breaking) redirect behavior for -web.external-url if -web.route-prefix is configured, which was introduced in #​17240. #​17389
  • [BUGFIX] Fix federation of some native histograms. #​17299 #​17409
  • [BUGFIX] promtool: check config would fail when --lint=none flag was set. #​17399 #​17414
  • [BUGFIX] Remote-write: fix a deadlock in the queue resharding logic that can lead to suboptimal queue behavior. #​17412

v3.7.2: 3.7.2 / 2025-10-22

Compare Source

  • [BUGFIX] AWS SD: Fix AWS SDK v2 credentials handling for EC2 and Lightsail discovery. #​17355
  • [BUGFIX] AWS SD: Load AWS region from IMDS when not set. #​17376
  • [BUGFIX] Relabeling: Fix labelmap action validation with the legacy metric name validation scheme. #​17372
  • [BUGFIX] PromQL: Fix parsing failure when anchored and smoothed are used as metric names and label names. #​17353
  • [BUGFIX] PromQL: Fix formatting of range vector selectors with smoothed/anchored modifier. #​17354

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| datasource | package                       | from   | to      |
| ---------- | ----------------------------- | ------ | ------- |
| docker     | quay.io/prometheus/prometheus | v3.7.1 | v3.11.2 |


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@renovate-sh-app renovate-sh-app bot requested a review from a team as a code owner April 16, 2026 10:03
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