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Releases: prometheus/prometheus

3.4.0-rc.0 / 2025-04-29

02 May 18:12
v3.4.0-rc.0
7a92230
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Pre-release
  • [CHANGE] Config: Make setting out-of-order native histograms feature (--enable-feature=ooo-native-histograms) a no-op. Out-of-order native histograms are now always enabled when out_of_order_time_window is greater than zero and --enable-feature=native-histograms is set. #16207
  • [FEATURE] OTLP translate: Add feature flag for optionally translating OTel explicit bucket histograms into native histograms with custom buckets. #15850
  • [FEATURE] OTLP translate: Add option to receive OTLP metrics without translating names or attributes. #16441
  • [FEATURE] PromQL: allow arithmetic operations in durations in PromQL parser. #16249
  • [FEATURE] OTLP receiver: Add primitive support for ingesting OTLP delta metrics as-is. #16360
  • [ENHANCEMENT] PromQL: histogram_fraction for bucket histograms. #16095
  • [ENHANCEMENT] TSDB: add prometheus_tsdb_wal_replay_unknown_refs_total and prometheus_tsdb_wbl_replay_unknown_refs_total metrics to track unknown series references during WAL/WBL replay. #16166
  • [ENHANCEMENT] Scraping: Add config option for escaping scheme request. #16066
  • [ENHANCEMENT] Config: Add global config option for convert_classic_histograms_to_nhcb. #16226
  • [ENHANCEMENT] Alerting: make batch size configurable (--alertmanager.notification-batch-size). #16254
  • [PERF] Kubernetes SD: make endpointSlice discovery more efficient. #16433
  • [BUGFIX] Config: Fix auto-reload on changes to rule and scrape config files. #16340
  • [BUGFIX] Scraping: Skip native histogram series if ingestion is disabled. #16218
  • [BUGFIX] TSDB: Handle metadata/tombstones/exemplars for duplicate series during WAL replay. #16231
  • [BUGFIX] TSDB: Avoid processing exemplars outside the valid time range during WAL replay. #16242
  • [BUGFIX] Promtool: Add feature flags for PromQL features. #16443
  • [BUGFIX] Rules: correct logging of alert name & template data. #15093
  • [BUGFIX] PromQL: Use arithmetic mean for histogram_stddev() and histogram_stdvar() . #16444

3.3.1 / 2025-05-02

02 May 15:41
v3.3.1
3dcecab
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  • [BUGFIX] Azure SD: Fix panic on malformed log message. #16434 #16210
  • [BUGFIX] Config: Update GOGC before loading TSDB. #16491

3.3.0 / 2025-04-15

18 Apr 13:46
v3.3.0
3c49e69
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  • [FEATURE] PromQL: Implement idelta() and irate() for native histograms. #15853
  • [ENHANCEMENT] Scaleway SD: Add __meta_scaleway_instance_public_ipv4_addresses and __meta_scaleway_instance_public_ipv6_addresses labels. #14228
  • [ENHANCEMENT] TSDB: Reduce locking while reloading blocks. #12920
  • [ENHANCEMENT] PromQL: Allow UTF-8 labels in label_replace(). #15974
  • [ENHANCEMENT] Promtool: tsdb create-blocks-from openmetrics can now read from a Pipe. #16011
  • [ENHANCEMENT] Rules: Add support for anchors and aliases in rule files. #14957
  • [ENHANCEMENT] Dockerfile: Make /prometheus writable. #16073
  • [ENHANCEMENT] API: Include scrape pool name for dropped targets in /api/v1/targets. #16085
  • [ENHANCEMENT] UI: Improve time formatting and copying of selectors. #15999 #16165
  • [ENHANCEMENT] UI: Bring back vertical grid lines and graph legend series toggling instructions. #16163 #16164
  • [ENHANCEMENT] Mixin: The cluster label can be customized using clusterLabel. #15826
  • [PERF] TSDB: Optimize some operations on head chunks by taking shortcuts. #12659
  • [PERF] TSDB & Agent: Reduce memory footprint during WL replay. #15778
  • [PERF] Remote-Write: Reduce memory footprint during WAL replay. #16197
  • [PERF] API: Reduce memory footprint during header parsing. #16001
  • [PERF] Rules: Improve dependency evaluation, enabling better concurrency. #16039
  • [PERF] Scraping: Improve scraping performance for native histograms. #15731
  • [PERF] Scraping: Improve parsing of created timestamps. #16072
  • [BUGFIX] Scraping: Bump cache iteration after error to avoid false duplicate detections. #16174
  • [BUGFIX] Scraping: Skip native histograms series when ingestion is disabled. #16218
  • [BUGFIX] PromQL: Fix counter reset detection for native histograms. #15902 #15987
  • [BUGFIX] PromQL: Fix inconsistent behavior with an empty range. #15970
  • [BUGFIX] PromQL: Fix inconsistent annotation in quantile_over_time(). #16018
  • [BUGFIX] PromQL: Prevent label_join() from producing duplicates. #15975
  • [BUGFIX] PromQL: Ignore native histograms in scalar(), sort() and sort_desc(). #15964
  • [BUGFIX] PromQL: Fix annotations for binary operations between incompatible native histograms. #15895
  • [BUGFIX] Alerting: Consider alert relabeling when deciding whether alerts are dropped. #15979
  • [BUGFIX] Config: Set GoGC to the default value in case of an empty configuration. #16052
  • [BUGFIX] TSDB: Fix unknown series errors and potential data loss during WAL replay when inactive series are removed from the head and reappear before the next WAL checkpoint. #16060
  • [BUGFIX] Scaleway SD: The public IP will no longer be set to __meta_meta_scaleway_instance_public_ipv4 if it is an IPv6 address. #14228
  • [BUGFIX] UI: Display the correct value of Alerting rules' keep_firing_for. #16211

3.3.0-rc.1 / 2025-04-02

08 Apr 07:50
v3.3.0-rc.1
293f0c9
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Pre-release
  • [BUGFIX] Remote-Write: Reduce memory footprint during WAL replay. #16197
  • [BUGFIX] Scraping: Skip native histograms series when ingestion is disabled. #16218
  • [BUGFIX] UI: Display the correct value of Alerting rules' keep_firing_for. #16211
  • [BUGFIX] PromQL: return NaN from irate() if second-last sample is NaN. #16199 #15853

3.3.0-rc.0 / 2025-03-11

26 Mar 14:11
v3.3.0-rc.0
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Pre-release
  • [FEATURE] PromQL: Implement idelta() and irate() for native histograms. #15853
  • [ENHANCEMENT] Scaleway SD: Add __meta_scaleway_instance_public_ipv4_addresses and __meta_scaleway_instance_public_ipv6_addresses labels. #14228
  • [ENHANCEMENT] TSDB: Reduce locking while reloading blocks. #12920
  • [ENHANCEMENT] PromQL: Allow UTF-8 labels in label_replace(). #15974
  • [ENHANCEMENT] Promtool: tsdb create-blocks-from openmetrics can now read from a Pipe. #16011
  • [ENHANCEMENT] Rules: Add support for anchors and aliases in rule files. #14957
  • [ENHANCEMENT] Dockerfile: Make /prometheus writable. #16073
  • [ENHANCEMENT] API: Include scrape pool name for dropped targets in /api/v1/targets. #16085
  • [ENHANCEMENT] UI: Improve time formatting and copying of selectors. #15999 #16165
  • [ENHANCEMENT] UI: Bring back vertical grid lines and graph legend series toggling instructions. #16163 #16164
  • [ENHANCEMENT] Mixin: The cluster label can be customized using clusterLabel. #15826
  • [PERF] TSDB: Optimize some operations on head chunks by taking shortcuts. #12659
  • [PERF] TSDB & Agent: Reduce memory footprint during WL replay. #15778
  • [PERF] API: Reduce memory footprint during header parsing. #16001
  • [PERF] Rules: Improve dependency evaluation, enabling better concurrency. #16039
  • [PERF] Scraping: Improve scraping performance for native histograms. #15731
  • [PERF] Scraping: Improve parsing of created timestamps. #16072
  • [BUGFIX] PromQL: Fix counter reset detection for native histograms. #15902 #15987
  • [BUGFIX] Scaleway SD: The public IP will no longer be set to __meta_meta_scaleway_instance_public_ipv4 if it is an IPv6 address. #14228
  • [BUGFIX] PromQL: Fix inconsistent behavior with an empty range. #15970
  • [BUGFIX] PromQL: Fix inconsistent annotation in quantile_over_time(). #16018
  • [BUGFIX] PromQL: Prevent label_join() from producing duplicates. #15975
  • [BUGFIX] PromQL: Ignore native histograms in scalar(), sort() and sort_desc(). #15964
  • [BUGFIX] Alerting: Consider alert relabeling when deciding whether alerts are dropped. #15979
  • [BUGFIX] Config: Set GoGC to the default value in case of an empty configuration. #16052
  • [BUGFIX] TSDB: Fix unknown series errors and potential data loss during WAL replay when inactive series are removed from the head and reappear before the next WAL checkpoint. #16060
  • [BUGFIX] Scraping: Bump cache iteration after error to avoid false duplicate detections. #16174
  • [BUGFIX] PromQL: Fix annotations for binary operations between incompatible native histograms. #15895

2.53.4 / 2025-03-18

18 Mar 15:50
v2.53.4
c8b5919
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  • [BUGFIX] Runtime: fix GOGC is being set to 0 when installed with empty prometheus.yml file resulting high cpu usage. #16090
  • [BUGFIX] Scrape: fix dropping valid metrics after previous scrape failed. #16220

3.2.1 / 2025-02-25

26 Feb 09:55
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  • [BUGFIX] Don't send Accept header escape=allow-utf-8 when metric_name_validation_scheme: legacy is configured. #16061

3.2.0 / 2025-02-17

17 Feb 19:24
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Prometheus v3.2.0 Changelog

  • [CHANGE] relabel: Replace actions can now use UTF-8 characters in targetLabel field. Note that $<chars> or ${<chars>} will be expanded. This also apply to replacement field for LabelMap action. #15851
  • [CHANGE] rulefmt: Rule names can use UTF-8 characters, except { and } characters (due to common mistake checks). #15851
  • [FEATURE] remote/otlp: Add feature flag otlp-deltatocumulative to support conversion from delta to cumulative. #15165
  • [ENHANCEMENT] openstack SD: Discover Octavia loadbalancers. #15539
  • [ENHANCEMENT] scrape: Add metadata for automatic metrics to WAL for metadata-wal-records feature. #15837
  • [ENHANCEMENT] promtool: Support linting of scrape interval, through lint option too-long-scrape-interval. #15719
  • [ENHANCEMENT] promtool: Add --ignore-unknown-fields option. #15706
  • [ENHANCEMENT] ui: Make "hide empty rules" and hide empty rules" persistent #15807
  • [ENHANCEMENT] web/api: Add a limit parameter to /query and /query_range. #15552
  • [ENHANCEMENT] api: Add fields Node and ServerTime to /status. #15784
  • [PERF] Scraping: defer computing labels for dropped targets until they are needed by the UI. #15261
  • [BUGFIX] remotewrite2: Fix invalid metadata bug for metrics without metadata. #15829
  • [BUGFIX] remotewrite2: Fix the unit field propagation. #15825
  • [BUGFIX] scrape: Fix WAL metadata for histograms and summaries. #15832
  • [BUGFIX] ui: Merge duplicate "Alerts page settings" sections. #15810
  • [BUGFIX] PromQL: Fix <aggr_over_time> functions with histograms. #15711

3.2.0-rc.1 / 2025-01-29

04 Feb 13:55
d80c58c
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Pre-release
  • [CHANGE] relabel: Replace actions can now use UTF-8 characters in targetLabel field. Note that $<chars> or ${<chars>} will be expanded. This also apply to replacement field for LabelMap action. #15851
  • [CHANGE] rulefmt: Rule names can use UTF-8 characters, except { and } characters (due to common mistake checks). #15851
  • [FEATURE] remote/otlp: Add feature flag otlp-deltatocumulative to support conversion from delta to cumulative. #15165
  • [ENHANCEMENT] openstack SD: Discover Octavia loadbalancers. #15539
  • [ENHANCEMENT] scrape: Add metadata for automatic metrics to WAL for metadata-wal-records feature. #15837
  • [ENHANCEMENT] promtool: Support linting of scrape interval, through lint option too-long-scrape-interval. #15719
  • [ENHANCEMENT] promtool: Add --ignore-unknown-fields option. #15706
  • [ENHANCEMENT] ui: Make "hide empty rules" and hide empty rules" persistent #15807
  • [ENHANCEMENT] web/api: Add a limit parameter to /query and /query_range. #15552
  • [ENHANCEMENT] api: Add fields Node and ServerTime to /status. #15784
  • [BUGFIX] remotewrite2: Fix invalid metadata bug for metrics without metadata. #15829
  • [BUGFIX] remotewrite2: Fix the unit field propagation. #15825
  • [BUGFIX] scrape: Fix WAL metadata for histograms and summaries. #15832
  • [BUGFIX] ui: Merge duplicate "Alerts page settings" sections. #15810
  • [BUGFIX] PromQL: Fix <aggr_over_time> functions with histograms. #15711

3.1.0 / 2025-01-02

02 Jan 14:36
v3.1.0
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What's Changed

  • [SECURITY] upgrade golang.org/x/crypto to address reported CVE-2024-45337. #15691
  • [CHANGE] Notifier: Increment prometheus_notifications_errors_total by the number of affected alerts rather than per batch. #15428
  • [CHANGE] API: list rules field "groupNextToken:omitempty" renamed to "groupNextToken". #15400
  • [ENHANCEMENT] OTLP translate: keep identifying attributes in target_info. #15448
  • [ENHANCEMENT] Paginate rule groups, add infinite scroll to rules within groups. #15677
  • [ENHANCEMENT] TSDB: Improve calculation of space used by labels. #13880
  • [ENHANCEMENT] Rules: new metric rule_group_last_rule_duration_sum_seconds. #15672
  • [ENHANCEMENT] Observability: Export 'go_sync_mutex_wait_total_seconds_total' metric. #15339
  • [ENHANCEMEN] Remote-Write: optionally use a DNS resolver that picks a random IP. #15329
  • [PERF] Optimize l=~".+" matcher. #15474, #15684
  • [PERF] TSDB: Cache all symbols for compaction . #15455
  • [PERF] TSDB: MemPostings: keep a map of label values slices. #15426
  • [PERF] Remote-Write: Remove interning hook. #15456
  • [PERF] Scrape: optimize string manipulation for experimental native histograms with custom buckets. #15453
  • [PERF] TSDB: reduce memory allocations. #15465, #15427
  • [PERF] Storage: Implement limit in mergeGenericQuerier. #14489
  • [PERF] TSDB: Optimize inverse matching. #14144
  • [PERF] Regex: use stack memory for lowercase copy of string. #15210
  • [PERF] TSDB: When deleting from postings index, pause to unlock and let readers read. #15242
  • [BUGFIX] Main: Avoid possible segfault at exit. (#15724)
  • [BUGFIX] Rules: Do not run rules concurrently if uncertain about dependencies. #15560
  • [BUGFIX] PromQL: Adds test for absent, absent_over_time and deriv func with histograms. #15667
  • [BUGFIX] PromQL: Fix various bugs related to quoting UTF-8 characters. #15531
  • [BUGFIX] Scrape: fix nil panic after scrape loop reload. #15563
  • [BUGFIX] Remote-write: fix panic on repeated log message. #15562
  • [BUGFIX] Scrape: reload would ignore always_scrape_classic_histograms and convert_classic_histograms_to_nhcb configs. #15489
  • [BUGFIX] TSDB: fix data corruption in experimental native histograms. #15482
  • [BUGFIX] PromQL: Ignore histograms in all time related functions. #15479
  • [BUGFIX] OTLP receiver: Convert metric metadata. #15416
  • [BUGFIX] PromQL: Fix resets function for histograms. #15527
  • [BUGFIX] PromQL: Fix behaviour of changes() for mix of histograms and floats. #15469
  • [BUGFIX] PromQL: Fix behaviour of some aggregations with histograms. #15432
  • [BUGFIX] allow quoted exemplar keys in openmetrics text format. #15260
  • [BUGFIX] TSDB: fixes for rare conditions when loading write-behind-log (WBL). #15380
  • [BUGFIX] round() function did not remove __name__ label. #15250
  • [BUGFIX] Promtool: analyze block shows metric name with 0 cardinality. #15438
  • [BUGFIX] PromQL: Fix count_values for histograms. #15422
  • [BUGFIX] PromQL: fix issues with comparison binary operations with bool modifier and native histograms. #15413
  • [BUGFIX] PromQL: fix incorrect "native histogram ignored in aggregation" annotations. #15414
  • [BUGFIX] PromQL: Corrects the behaviour of some operator and aggregators with Native Histograms. #15245
  • [BUGFIX] TSDB: Always return unknown hint for first sample in non-gauge histogram chunk. #15343
  • [BUGFIX] PromQL: Clamp functions: Ignore any points with native histograms. #15169
  • [BUGFIX] TSDB: Fix race on stale values in headAppender. #15322
  • [BUGFIX] UI: Fix selector / series formatting for empty metric names. #15340
  • [BUGFIX] OTLP receiver: Allow colons in non-standard units. #15710