build(deps): bump github.com/prometheus/client_golang from 1.18.0 to 1.24.1

[dependabot]

Bumps github.com/prometheus/client_golang from 1.18.0 to 1.24.1.

Release notes

Sourced from github.com/prometheus/client_golang's releases.

v1.24.1 / 2026-07-23

Small bugfix release for promhttp.

What's Changed

[BUGFIX] promhttp: Fix panic on requests with nil URL. #2065

Full Changelog: prometheus/client_golang@v1.24.0...v1.24.1

v1.24.0 - 2026-07-20

Changes

• [CHANGE] Minimum required Go version is now 1.25, only the two latest Go versions (1.25 and 1.26) are supported from now on. #1862
• [CHANGE] prometheus: Name validation now always uses the UTF-8 scheme instead of the deprecated model.NameValidationScheme global. Default behavior is unchanged; code that set NameValidationScheme = LegacyValidation no longer gets legacy enforcement at metric, label, and push-grouping construction. #2051
• [CHANGE] api/prometheus/v1: Support matchers (matches[] parameter) in Rules method (Rules(ctx context.Context, matches []string) (RulesResult, error)). #1843
• [CHANGE] api/prometheus/v1: Refactor LabelNames method to return model.LabelNames instead of []string for consistency across the API. #1850
• [CHANGE] exp/api/remote: Simplify Store interface, rename Handler to WriteHandler, and encapsulate write response handling. #1855
• [FEATURE] prometheus: Add new Go 1.26 runtime metrics (/sched/goroutines-created:goroutines, /sched/goroutines/not-in-go:goroutines, /sched/goroutines/runnable:goroutines, /sched/goroutines/running:goroutines, /sched/goroutines/waiting:goroutines, /sched/threads/total:threads). #1942
• [FEATURE] prometheus: Add WithUnit(unit string) option and explicit OpenMetrics unit support in CounterOpts, GaugeOpts, SummaryOpts, and HistogramOpts. #1392
• [FEATURE] prometheus: Expose descriptor construction error through public Err() method on Desc. #1902
• [FEATURE] promhttp: Add opt-in HandlerOpts.CoalesceGather to deduplicate concurrent Gather calls so overlapping scrapes share one collection cycle, preventing goroutine pile-up when the scrape rate outpaces collection time. #1969
• [FEATURE] promhttp: HTTP handlers created by promhttp package now support metrics filtering by providing one or more name[] query parameters. The default behavior when none are provided remains the same, returning all metrics. #1925
• [FEATURE] api/prometheus/v1: Add query formatting endpoint support (/format_query) and FormatQuery(ctx context.Context, query string) (string, error) method. #1846, #1856
• [FEATURE] api/prometheus/v1: Add support for /status/tsdb/blocks endpoint via TSDBBlocks(ctx context.Context) ([]TSDBBlock, error) method. #1896
• [FEATURE] exp/api/remote: Export BackoffConfig to allow customization when using WithAPIBackoff. #1895
• [FEATURE] exp/api/remote: Add RetryCallBack to allow custom logging or handling on retry attempts in the remote write client. #1888, #1890
• [ENHANCEMENT] prometheus/collectors/version: Allow specifying custom labels when registering the version collector. #1860
• [ENHANCEMENT] api: Use cloned http.DefaultTransport when constructing default HTTP clients to prevent accidental mutations of shared global transport state. #1885
• [BUGFIX] prometheus: Recover from collector panics during Gather() and return an error instead of crashing the process. #1961
• [BUGFIX] prometheus: Fix cpu-seconds unit suffix handling for metric go_cpu_classes_gc_mark_assist_cpu_seconds. #1991
• [BUGFIX] promhttp: InstrumentHandlerDuration and InstrumentHandlerCounter no longer panic when given an observer/counter that does not implement ExemplarObserver/ExemplarAdder (e.g. a SummaryVec). The exemplar is dropped and the value is recorded via the plain Observe/Add path, matching the safe-cast already used by Timer.ObserveDurationWithExemplar. #2005
• [BUGFIX] api/prometheus/v1: Fall back to GET requests when POST requests return 403 Forbidden or method not allowed. #2030
• [BUGFIX] api: Respect context cancellation inside httpClient.Do. #1971
• [BUGFIX] exp/api/remote: Fix compression buffer pooling where compressed buffers were released prematurely, causing corrupted remote-write payloads. #1889
• [BUGFIX] exp/api/remote: Reject malformed snappy payloads declaring huge decoded sizes. Enforce a 32MB decoded-size limit to prevent OOM from oversized remote-write requests. #1917
• [BUGFIX] exp/api/remote: Ensure remote write v2 headers cannot be returned on v1 requests. #1927

• build(deps): bump github.com/prometheus/procfs from 0.16.1 to 0.17.0 by @​dependabot[bot] in prometheus/client_golang#1839
• build(deps): bump golang.org/x/sys from 0.33.0 to 0.34.0 by @​dependabot[bot] in prometheus/client_golang#1838
• prometheus/collectors: use godoc link for runtime/metrics supported metrics by @​xieyuschen in prometheus/client_golang#1844
• Fix doc typo by @​torrca in prometheus/client_golang#1849
• Merge release-1.23 into main by @​vesari in prometheus/client_golang#1851
• build(deps): bump github/codeql-action from 3.29.2 to 3.29.5 in the github-actions group by @​dependabot[bot] in prometheus/client_golang#1852
• Refactor LabelNames to return model.LabelNames type for consistency by @​yshngg in prometheus/client_golang#1850
• remote: simplified Store interface; renamed Handler to WriteHandler by @​bwplotka in prometheus/client_golang#1855
• feat(api/prometheus): add format_query endpoint for query formatting by @​yshngg in prometheus/client_golang#1846
• feat(api): add FormatQuery method to Prometheus v1 API by @​yshngg in prometheus/client_golang#1856

... (truncated)

Changelog

Sourced from github.com/prometheus/client_golang's changelog.

1.24.1 / 2026-07-23

• [BUGFIX] promhttp: Fix panic on requests with nil URL. #2065

1.24.0 / 2026-07-20

• [CHANGE] Minimum required Go version is now 1.25, only the two latest Go versions (1.25 and 1.26) are supported from now on. #1862
• [CHANGE] prometheus: Name validation now always uses the UTF-8 scheme instead of the deprecated model.NameValidationScheme global. Default behavior is unchanged; code that set NameValidationScheme = LegacyValidation no longer gets legacy enforcement at metric, label, and push-grouping construction. #2051
• [CHANGE] api/prometheus/v1: Support matchers (matches[] parameter) in Rules method (Rules(ctx context.Context, matches []string) (RulesResult, error)). #1843
• [CHANGE] api/prometheus/v1: Refactor LabelNames method to return model.LabelNames instead of []string for consistency across the API. #1850
• [CHANGE] exp/api/remote: Simplify Store interface, rename Handler to WriteHandler, and encapsulate write response handling. #1855
• [FEATURE] prometheus: Add new Go 1.26 runtime metrics (/sched/goroutines-created:goroutines, /sched/goroutines/not-in-go:goroutines, /sched/goroutines/runnable:goroutines, /sched/goroutines/running:goroutines, /sched/goroutines/waiting:goroutines, /sched/threads/total:threads). #1942
• [FEATURE] prometheus: Add WithUnit(unit string) option and explicit OpenMetrics unit support in CounterOpts, GaugeOpts, SummaryOpts, and HistogramOpts. #1392
• [FEATURE] prometheus: Expose descriptor construction error through public Err() method on Desc. #1902
• [FEATURE] promhttp: Add opt-in HandlerOpts.CoalesceGather to deduplicate concurrent Gather calls so overlapping scrapes share one collection cycle, preventing goroutine pile-up when the scrape rate outpaces collection time. #1969
• [FEATURE] promhttp: HTTP handlers created by promhttp package now support metrics filtering by providing one or more name[] query parameters. The default behavior when none are provided remains the same, returning all metrics. #1925
• [FEATURE] api/prometheus/v1: Add query formatting endpoint support (/format_query) and FormatQuery(ctx context.Context, query string) (string, error) method. #1846, #1856
• [FEATURE] api/prometheus/v1: Add support for /status/tsdb/blocks endpoint via TSDBBlocks(ctx context.Context) ([]TSDBBlock, error) method. #1896
• [FEATURE] exp/api/remote: Export BackoffConfig to allow customization when using WithAPIBackoff. #1895
• [FEATURE] exp/api/remote: Add RetryCallBack to allow custom logging or handling on retry attempts in the remote write client. #1888, #1890
• [ENHANCEMENT] prometheus/collectors/version: Allow specifying custom labels when registering the version collector. #1860
• [ENHANCEMENT] api: Use cloned http.DefaultTransport when constructing default HTTP clients to prevent accidental mutations of shared global transport state. #1885
• [BUGFIX] prometheus: Recover from collector panics during Gather() and return an error instead of crashing the process. #1961
• [BUGFIX] prometheus: Fix cpu-seconds unit suffix handling for metric go_cpu_classes_gc_mark_assist_cpu_seconds. #1991
• [BUGFIX] promhttp: InstrumentHandlerDuration and InstrumentHandlerCounter no longer panic when given an observer/counter that does not implement ExemplarObserver/ExemplarAdder (e.g. a SummaryVec). The exemplar is dropped and the value is recorded via the plain Observe/Add path, matching the safe-cast already used by Timer.ObserveDurationWithExemplar. #2005
• [BUGFIX] api/prometheus/v1: Fall back to GET requests when POST requests return 403 Forbidden or method not allowed. #2030
• [BUGFIX] api: Respect context cancellation inside httpClient.Do. #1971
• [BUGFIX] exp/api/remote: Fix compression buffer pooling where compressed buffers were released prematurely, causing corrupted remote-write payloads. #1889
• [BUGFIX] exp/api/remote: Reject malformed snappy payloads declaring huge decoded sizes. Enforce a 32MB decoded-size limit to prevent OOM from oversized remote-write requests. #1917
• [BUGFIX] exp/api/remote: Ensure remote write v2 headers cannot be returned on v1 requests. #1927

1.23.2 / 2025-09-05

This release is made to upgrade to prometheus/common v0.66.1, which drops the dependencies github.com/grafana/regexp and go.uber.org/atomic and replaces gopkg.in/yaml.v2 with go.yaml.in/yaml/v2 (a drop-in replacement). There are no functional changes.

1.23.1 / 2025-09-04

This release is made to be compatible with a backwards incompatible API change in prometheus/common v0.66.0. There are no functional changes.

1.23.0 / 2025-07-30

• [CHANGE] Minimum required Go version is now 1.23, only the two latest Go versions are supported from now on. #1812
• [FEATURE] Add WrapCollectorWith and WrapCollectorWithPrefix #1766
• [FEATURE] Add exemplars for native histograms #1686
• [ENHANCEMENT] exp/api: Bubble up status code from writeResponse #1823
• [ENHANCEMENT] collector/go: Update runtime metrics for Go v1.23 and v1.24 #1833
• [BUGFIX] exp/api: client prompt return on context cancellation #1729

... (truncated)

Commits

• d6087ee release: cut v1.24.1 (#2076)
• 48dd383 Cut v1.24.0 (#2061)
• a725305 Cut v1.24.0-rc.0 (#2058)
• 77c584f build(deps): update all Go dependencies in all go.mod files (#2059)
• 78262a7 feat(promhttp): add CoalesceGather option to deduplicate concurrent Gather ca...
• 34e9a7f Merge pull request #2055 from prombot/repo_sync
• 43749bc Update common Prometheus files
• de19217 examples: improve simple main.go example (#1999)
• 20355eb fix: correct typos in comments and test error messages (#2049)
• 4cd2d3a test: fix two flaky tests (darwin start_time regex, memstats HeapReleased dri...
• Additional commits viewable in compare view

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