v1.22.0-rc.0 / 2025-03-07

⚠️ This release contains potential breaking change if you use experimental zstd support introduce in #1496 ⚠️

Experimental support for zstd on scrape was added, controlled by the request Accept-Encoding header.
It was enabled by default since version 1.20, but now you need to add a blank import to enable it.
The decision to make it opt-in by default was originally made because the Go standard library was expected to have default zstd support added soon,
golang/go#62513 however, the work took longer than anticipated and it will be postponed to upcoming major Go versions.

e.g.:

import (
  _ "github.com/prometheus/client_golang/prometheus/promhttp/zstd"
)

• [FEATURE] prometheus: Add new CollectorFunc utility #1724
• [CHANGE] Minimum required Go version is now 1.22 (we also test client_golang against latest go version - 1.24) #1738
• [FEATURE] api: WithLookbackDelta and WithStats options have been added to API client. #1743
• [CHANGE] ⚠️ promhttp: Isolate zstd support and klauspost/compress library use to promhttp/zstd package. #1765

All Changes

• build(deps): bump golang.org/x/sys from 0.28.0 to 0.29.0 by @dependabot in #1720
• build(deps): bump google.golang.org/protobuf from 1.36.1 to 1.36.3 by @dependabot in #1719
• Update RELEASE.md by @bwplotka in #1721
• chore(docs): Add links for the upstream PRs by @kakkoyun in #1722
• Added tips on releasing client and checking with k8s. by @bwplotka in #1723
• feat: Add new CollectorFunc utility by @Saumya40-codes in #1724
• build(deps): bump google.golang.org/protobuf from 1.36.3 to 1.36.4 by @dependabot in #1725
• build(deps): bump the github-actions group with 5 updates by @dependabot in #1726
• Synchronize common files from prometheus/prometheus by @prombot in #1727
• Synchronize common files from prometheus/prometheus by @prombot in #1731
• build(deps): bump golang.org/x/sys from 0.29.0 to 0.30.0 by @dependabot in #1739
• build(deps): bump google.golang.org/protobuf from 1.36.4 to 1.36.5 by @dependabot in #1740
• Cleanup dependabot config by @SuperQ in #1741
• Upgrade Golang version v1.24 by @dongjiang1989 in #1738
• build(deps): bump the github-actions group with 2 updates by @dependabot in #1742
• Merging 1.21 release back to main. by @bwplotka in #1744
• Synchronize common files from prometheus/prometheus by @prombot in #1745
• Add support for undocumented query options for API by @mahendrapaipuri in #1743
• exp/api: Add experimental exp module; Add remote API with write client and handler. by @bwplotka in #1658
• exp/api: Add accepted msg type validation to handler by @saswatamcode in #1750
• build(deps): bump the github-actions group with 5 updates by @dependabot in #1751
• build(deps): bump github.com/klauspost/compress from 1.17.11 to 1.18.0 by @dependabot in #1752
• build(deps): bump github.com/google/go-cmp from 0.6.0 to 0.7.0 by @dependabot in #1753
• exp: Reset snappy buf by @saswatamcode in #1756
• Merge release 1.21.1 to main. by @bwplotka in #1762
• exp: Add dependabot config by @saswatamcode in #1754
• build(deps): bump peter-evans/create-pull-request from 7.0.7 to 7.0.8 in the github-actions group by @dependabot in #1764
• promhttp: Isolate zstd support and klauspost/compress library use to promhttp/zstd package by @liggitt in #1765
• Cut 1.22.0-rc.0 by @kakkoyun in #1768

New Contributors

• @Saumya40-codes made their first contribution in #1724
• @mahendrapaipuri made their first contribution in #1743
• @liggitt made their first contribution in #1765

Full Changelog: v1.21.1...v1.22.0-rc.0

v1.21.1 / 2025-03-04

This release addresses a performance regression introduced in #1661 -- thanks to all who reported this quickly:
@chlunde, @dethi, @aaronbee @tsuna @kakkoyun 💪🏽. This patch release also fixes the iOS build.

We will be hardening the release process even further (#1759, #1761) to prevent this in future, sorry for the inconvenience!

The high concurrency optimization is planned to be eventually reintroduced, however in a much safer manner, potentially in a separate API.

• [BUGFIX] prometheus: Revert of Inc, Add and Observe cumulative metric CAS optimizations (#1661), causing regressions on low concurrency cases #1757
• [BUGFIX] prometheus: Fix GOOS=ios build, broken due to process_collector_* wrong build tags. #1758

All commits

• Revert "exponential backoff for CAS operations on floats" and cut 1.21.1 by @bwplotka in #1757
• Fix ios build for 1.21.1 by @bwplotka in #1758

Full Changelog: v1.21.0...v1.21.1

v1.21.0 / 2025-02-19

⚠️ This release contains potential breaking change if you upgrade github.com/prometheus/common to 0.62+ together with client_golang (and depend on the strict, legacy validation for the label names). New common version changes model.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 change model.NameValidationScheme to old model.LegacyValidation value in your project init function. ⚠️

• [BUGFIX] gocollector: Fix help message for runtime/metric metrics. #1583
• [BUGFIX] prometheus: Fix Desc.String() method for no labels case. #1687
• [PERF] prometheus: Optimize popular prometheus.BuildFQName function; now up to 30% faster. #1665
• [PERF] prometheus: Optimize Inc, Add and Observe cumulative metrics; now up to 50% faster under high concurrent contention. #1661
• [CHANGE] Upgrade prometheus/common to 0.62.0 which changes model.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 invoke CloseIdleConnections on api.Client using api.Client.(CloseIdler).CloseIdleConnections() casting. #1513
• [FEATURE] promhttp: Add promhttp.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: Add NewConstNativeHistogram function. #1654

All commits

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

v1.21.0-rc.0 / 2025-01-21

⚠️ This release contains potential breaking change if you upgrade github.com/prometheus/common to 0.62+ together with client_golang. ⚠️

New common version changes model.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 change model.NameValidationScheme to old model.LegacyValidation value in your project init function.

• [BUGFIX] gocollector: Fix help message for runtime/metric metrics. #1583
• [BUGFIX] prometheus: Fix Desc.String() method for no labels case. #1687
• [ENHANCEMENT] prometheus: Optimize popular prometheus.BuildFQName function; now up to 30% faster. #1665
• [ENHANCEMENT] prometheus: Optimize Inc, Add and Observe cumulative metrics; now up to 50% faster under high concurrent contention. #1661
• [CHANGE] Upgrade prometheus/common to 0.62.0 which changes model.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 invoke CloseIdleConnections on api.Client using api.Client.(CloseIdler).CloseIdleConnections() casting. #1513
• [FEATURE] promhttp: Add promhttp.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: Add NewConstNativeHistogram 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 in TestHistogramAtomicObserve 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 c...

v1.20.5 / 2024-10-15

We decided to revert the testutil change that made our util functions less error-prone, but created a lot of work for our downstream users. Apologies for the pain! This revert should not cause any major breaking change, even if you already did the work--unless you depend on the exact error message.

Going forward, we plan to reinforce our release testing strategy [1],[2] and deliver an enhanced testutil package/module with more flexible and safer APIs.

Thanks to @dashpole @dgrisonnet @kakkoyun @ArthurSens @vesari @logicalhan @krajorama @bwplotka who helped in this patch release! 🤗

Changelog

[BUGFIX] testutil: Reverted #1424; functions using compareMetricFamilies are (again) only failing if filtered metricNames are in the expected input. #1645

v1.20.4

• [BUGFIX] histograms: Fix a possible data race when appending exemplars vs metrics gather. #1623

v1.20.3

• [BUGFIX] histograms: Fix possible data race when appending exemplars. #1608

v1.20.2

• [BUGFIX] promhttp: Unset Content-Encoding header when data is uncompressed. #1596

v1.20.1

This release contains the critical fix for the issue. Thanks to @geberl, @CubicrootXYZ, @zetaab and @timofurrer for helping us with the investigation!

• [BUGFIX] process-collector: Fixed unregistered descriptor error when using process collector with PedanticRegistry on Linux machines. #1587

v1.20.0

Thanks everyone for contributions!

⚠️ In this release we remove one (broken anyway, given Go runtime changes) metric and add three new (representing GOGC, GOMEMLIMIT and GOMAXPROCS flags) to the default collectors.NewGoCollector() collector. Given its popular usage, expect your binary to expose two additional metric.

Changes

• [CHANGE] ⚠️ go-collector: Remove go_memstat_lookups_total metric which was always 0; Go runtime stopped sharing pointer lookup statistics. #1577
• [FEATURE] ⚠️ go-collector: Add 3 default metrics: go_gc_gogc_percent, go_gc_gomemlimit_bytes and go_sched_gomaxprocs_threads as those are recommended by the Go team. #1559
• [FEATURE] go-collector: Add more information to all metrics' HELP e.g. the exact runtime/metrics sourcing each metric (if relevant). #1568 #1578
• [FEATURE] testutil: Add CollectAndFormat method. #1503
• [FEATURE] histograms: Add support for exemplars in native histograms. #1471
• [FEATURE] promhttp: Add experimental support for zstd on scrape, controlled by the request Accept-Encoding header. #1496
• [FEATURE] api/v1: Add WithLimit parameter to all API methods that supports it. #1544
• [FEATURE] prometheus: Add support for created timestamps in constant histograms and constant summaries. #1537
• [FEATURE] process-collectors: Add network usage metrics: process_network_receive_bytes_total and process_network_transmit_bytes_total. #1555
• [FEATURE] promlint: Add duplicated metric lint rule. #1472
• [BUGFIX] promlint: Relax metric type in name linter rule. #1455
• [BUGFIX] promhttp: Make sure server
  instrumentation wrapping supports new and future extra responseWriter methods. #1480
• [BUGFIX] testutil: Functions using compareMetricFamilies are now failing if filtered metricNames are not in the input. #1424

All commits

• feat(prometheus/testutil/promlint/validations): refine lintMetricType… by @foehammer127 in #1455
• Bump github.com/prometheus/client_golang from 1.18.0 to 1.19.0 in /examples/middleware by @dependabot in #1457
• Bump github.com/prometheus/client_model from 0.5.0 to 0.6.0 by @dependabot in #1458
• Bump golang.org/x/sys from 0.16.0 to 0.17.0 by @dependabot in #1459
• Bump github.com/prometheus/client_golang from 1.18.0 to 1.19.0 in /tutorial/whatsup by @dependabot in #1461
• Merge Release 1.19 back to main by @ArthurSens in #1462
• Bump the github-actions group with 2 updates by @dependabot in #1456
• Bump google.golang.org/protobuf from 1.32.0 to 1.33.0 by @dependabot in #1466
• Bump google.golang.org/protobuf from 1.32.0 to 1.33.0 in /examples/middleware by @dependabot in #1467
• Bump google.golang.org/protobuf from 1.32.0 to 1.33.0 in /tutorial/whatsup by @dependabot in #1469
• Add LintDuplicateMetric to promlint by @bboreham in #1472
• Auto-update Go Collector Metrics for new Go versions by @SachinSahu431 in #1476
• Implement Unwrap() for responseWriterDelegator by @igor-drozdov in #1480
• Bump golang.org/x/sys from 0.17.0 to 0.18.0 by @dependabot in #1485
• Bump github.com/prometheus/procfs from 0.12.0 to 0.13.0 by @dependabot in #1486
• ci: Remove hardcoded supported Go versions from go.yml by @SachinSahu431 in #1489
• feat: metrics generation workflow by @SachinSahu431 in #1481
• fix: remove redundant go module in middleware example by @majolo in #1492
• chore: Refactor how base metrics are added to Sched metrics by @ArthurSens in #1483
• gocollector: Add regex option to allow collection of debug runtime metrics by @ArthurSens in #1389
• Bump github.com/prometheus/common from 0.48.0 to 0.52.3 by @dependabot in #1498
• chore: fix function name in comment by @oftenoccur in #1497
• build(deps): bump golang.org/x/net from 0.20.0 to 0.23.0 in /tutorial/whatsup by @dependabot in #1501
• build(deps): bump golang.org/x/net from 0.22.0 to 0.23.0 by @dependabot in #1502
• feat(dependency): replace go-spew package by @dongjiang1989 in #1499
• build(deps): bump github.com/prometheus/common from 0.52.3 to 0.53.0 by @dependabot in #1504
• build(deps): bump github.com/cespare/xxhash/v2 from 2.2.0 to 2.3.0 by @dependabot in #1505
• build(deps): bump google.golang.org/protobuf from 1.33.0 to 1.34.0 by @dependabot in #1506
• build(deps): bump golang.org/x/sys from 0.18.0 to 0.19.0 by @dependabot in #1507
• build(deps): bump github.com/prometheus/client_model from 0.6.0 to 0.6.1 by @dependabot in #1508
• build(deps): bump github.com/prometheus/common from 0.48.0 to 0.53.0 in /tutorial/whatsup by @dependabot in #1509
• improved code more clean by @lilijreey in #1511
• build(deps): bump the github-actions group with 3 updates by @dependabot in #1510
• [CI]: Add Concurrency Grouping to GitHub Workflows by @Ishani217 in #1444
• Add CollectAndFormat to testutil, allowing caller to assert as they want to on the exported metric by @jcass8695 in #1503
• testutil compareMetricFamilies: make less error-prone by @leonnicolas in #1424
• improved code more clean use time.IsZero() replace t = time.Time{} by @lilijreey in #1515
• add native histogram exemplar support by @fatsheep9146 in #1471
• Synchronize common files from prometheus/prometheus by @prombot in #1514
• build(deps): bump golang.org/x/sys from 0.19.0 to 0.20.0 by @dependabot in #1523
• build(deps): bump google.golang.org/protobuf from 1.34.0 to 1.34.1 by @dependabot in #1522
• Synchronize common files from prometheus/prometheus by @prombot in #1524
• Add PR template for changelog automation by @SachinSahu431 in #1517
• Auto label PRs by @SachinSahu431 in #1518
• Fix: Auto label PRs #1518 by @SachinSahu431 in #1525
• build(deps): bump github.com/prometheus/procfs from 0.13.0 to 0.15.1 by @dependabot in #1527
• ci: Group all changelog-related CI jobs into single one by @ArthurSens in #1526
• Synchronize common files from prometheus/prometheus by @prombot in #1530
• Remove synchronize trigger from changelog workflow by @SachinSahu431 in #1532
• feat: Support zstd compression by @mrueg in #1496
• Fix golangci-lint config by @SuperQ in #1536
• build(deps): bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 in /tutorial/whatsup by @dependabot in #1529
• Synchronize common files from prometheus/prometheus by @prombot in #1531
• Cleanup NOTICE file by @SuperQ in #1541
• Remove inlined upstream code by @SuperQ in #1539
• Synchronize common files from prometheus/prometheus by @prombot in #1545
• client: Add Option to provide limit query param for APIs that support it by @abbyssoul in #1544
• Allow creating constant histogram and summary metrics with a created timestamp by @swar8080 in #1537
• Update README.md by @bwplotka in #1556
• Temporarily remove required CI job for changelog. by @bwplotka in #1560
• build(deps): bump github.com/prometheus/common from 0.53.0 to 0.55.0 in /tutorial/whatsup by @dependabot in #1549
• build(deps): bump golang.org/x/sys from 0.20.0 to 0.21.0 by @dependabot in #1552
• build(deps): bump github.com/kl...