New common versionchangesmodel.NameValidationScheme global variable, which relaxes the validation of label names and metric name, allowing all UTF-8 characters. Typically, this should not break any user, unless your test or usage expects strict certain names to panic/fail on client_golang metric registration, gathering or scrape. In case of problems changemodel.NameValidationScheme to oldmodel.LegacyValidation value in your projectinit function.

[BUGFIX] gocollector: Fix help message for runtime/metric metrics.#1583
[BUGFIX] prometheus: FixDesc.String() method for no labels case.#1687
[ENHANCEMENT] prometheus: Optimize popularprometheus.BuildFQName function; now up to 30% faster.#1665
[ENHANCEMENT] prometheus: OptimizeInc,Add andObserve cumulative metrics; now up to 50% faster under high concurrent contention.#1661
[CHANGE] Upgrade prometheus/common to 0.62.0 which changesmodel.NameValidationScheme global variable.#1712
[CHANGE] Add support for Go 1.23.#1602
[FEATURE] process_collector: Add support for Darwin systems.#1600 #1616 #1625 #1675 #1715
[FEATURE] api: Add ability to invokeCloseIdleConnections on api.Client usingapi.Client.(CloseIdler).CloseIdleConnections() casting.#1513
[FEATURE] promhttp: Addpromhttp.HandlerOpts.EnableOpenMetricsTextCreatedSamples option to create OpenMetrics _created lines. Not recommended unless you want to use opt-in Created Timestamp feature. Community works on OpenMetrics 2.0 format that should make those lines obsolete (they increase cardinality significantly).#1408
[FEATURE] prometheus: AddNewConstNativeHistogram function.#1654

All commits

Merge release-1.20 to main by@bwplotka in#1582
gocollector: Tiny fix for help message with runtime/metrics source. by@bwplotka in#1583
ci: bump dagger to the latest version by@marcosnils in#1588
Merge release-1.20 back to main by@ArthurSens in#1593
Update linting by@SuperQ in#1603
Update supported Go versions by@SuperQ in#1602
build(deps): bump golang.org/x/sys from 0.22.0 to 0.24.0 by@dependabot in#1611
build(deps): bump github.com/prometheus/common from 0.55.0 to 0.57.0 by@dependabot in#1612
changed the name of all variables with min/max name by@parthlaw in#1606
Update Dagger and build. by@SuperQ in#1610
build(deps): bump github/codeql-action from 3.25.15 to 3.26.6 in the github-actions group across 1 directory by@dependabot in#1614
examples: Improved GoCollector example. by@bwplotka in#1589
Synchronize common files from prometheus/prometheus by@prombot in#1615
process_collector: fill in most statistics on macOS by@mharbison72 in#1600
⚡ http client defer CloseIdleConnections by@cuisongliu in#1513
Set allow-utf-8 in Format during tests to avoid escaping. by@ywwg in#1618
Synchronize common files from prometheus/prometheus by@prombot in#1622
Merge Release 1.20 back to main by@ArthurSens in#1627
examples: Add custom labels example by@ying-jeanne in#1626
Refactor default runtime metrics tests for Go collector so that default runtime metric set autogenerates by@vesari in#1631
Synchronize common files from prometheus/prometheus by@prombot in#1628
process_xxx_memory statistics for macOS (cgo) by@mharbison72 in#1616
build(deps): bump github.com/klauspost/compress from 1.17.9 to 1.17.10 by@dependabot in#1633
build(deps): bump golang.org/x/sys from 0.24.0 to 0.25.0 by@dependabot in#1632
process_collector: Add Platform-Specific Describe for processCollector by@ying-jeanne in#1625
Synchronize common files from prometheus/prometheus by@prombot in#1635
build(deps): bump the github-actions group with 4 updates by@dependabot in#1634
Optionally print OM created lines by@ArthurSens in#1408
process_collector: merge wasip1 and js into a single implementation by@ying-jeanne in#1644
Merge release 1.20 to main by@bwplotka in#1647
Add Arianna as maintainer 💪 by@ArthurSens in#1651
test add headers round tripper by@Manask322 in#1657
build(deps): bump github.com/klauspost/compress from 1.17.10 to 1.17.11 by@dependabot in#1668
build(deps): bump golang.org/x/sys from 0.25.0 to 0.26.0 by@dependabot in#1669
build(deps): bump github.com/prometheus/common from 0.59.1 to 0.60.1 by@dependabot in#1667
build(deps): bump google.golang.org/protobuf from 1.34.2 to 1.35.1 by@dependabot in#1670
Optimize BuildFQName function by@jkroepke in#1665
fix: use injected now() instead of time.Now() in summary methods by@imorph in#1672
process_collector: avoid a compiler warning on macOS (fixes#1660) by@mharbison72 in#1675
Synchronize common files from prometheus/prometheus by@prombot in#1674
build(deps): bump the github-actions group across 1 directory with 3 updates by@dependabot in#1678
[chore]: enable perfsprint linter by@mmorel-35 in#1676
Duplicate of#1662 by@imorph in#1673
Synchronize common files from prometheus/prometheus by@prombot in#1679
chore: enable usestdlibvars linter by@mmorel-35 in#1680
Add: exponential backoff for CAS operations on floats by@imorph in#1661
Synchronize common files from prometheus/prometheus by@prombot in#1683
[1617] Add ConstnativeHistogram by@shivanthzen in#1654
fix: replace fmt.Errorf with errors.New by@kakkoyun in#1689
Add codeowners by@kakkoyun in#1688
fix: add very small delay between observations inTestHistogramAtomicObserve by@imorph in#1691
Synchronize common files from prometheus/prometheus by@prombot in#1692
Fix: handle nil variableLabels in Desc.String() method and add tests for nil label values by@kakkoyun in#1687
examples: Follow best practices and established naming conventions by@lilic in#1650
setup OSSF Scorecard workflow by@mmorel-35 in#1432
build(deps): bump google.golang.org/protobuf from 1.35.1 to 1.35.2 by@dependabot in#1697
build(deps): bump golang.org/x/sys from 0.26.0 to 0.27.0 by@dependabot in#1696
build(deps): bump the github-actions group with 5 updates by@dependabot in#1695
update links to openmetrics to reference the v1.0.0 release by@dashpole in#1699
build(deps): bump google.golang.org/protobuf from 1.35.2 to 1.36.1 by@dependabot in#1706
build(deps): bump golang.org/x/sys from 0.27.0 to 0.28.0 by@dependabot in#1705
build(deps): bump the github-actions group with 5 updates by@dependabot in#1707
build(deps): bump github.com/prometheus/common from 0.60.1 to 0.61.0 by@dependabot in#1704
Synchronize common files from prometheus/prometheus by@prombot in#1703
Synchronize common files from prometheus/prometheus by@prombot in#1708
Upgrade to prometheus/common 0.62.0 with breaking change by@bwplotka in#1712
build(deps): bump golang.org/x/net from 0.26.0 to 0.33.0 in /tutorials/whatsup by@dependabot in#1713
docs: Add RELEASE.md for the release process by@kakkoyun in#1690
tutorials/whatsup: Updated deps by@bwplotka in#1716
process collector: Fixed pedantic registry failures on darwin with cgo. by@bwplotka in#1715
Revert "ci: daggerize test and lint pipelines (#1534)" by@bwplotka in#1717