What's Changed

• [BUGFIX] api: Switch to POST for LabelNames, Series, and QueryExemplars. #1252
• [BUGFIX] api: Fix undefined execution order in return statements. #1260
• [BUGFIX] native histograms: Fix bug in bucket key calculation. #1279
• [ENHANCEMENT] Reduce constrainLabels allocations for all metrics. #1272
• [ENHANCEMENT] promhttp: Add process start time header for scrape efficiency. #1278
• [ENHANCEMENT] promlint: Improve metricUnits runtime. #1286

Commits

• Merge v1.15 to main by @bwplotka in https://github.com/prometheus/client_golang/pull/1250
• Switch to POST for LabelNames, Series, and QueryExemplars to DoGetFallback by @jacksontj in https://github.com/prometheus/client_golang/pull/1252
• ✏️ [collectors]: fix typo in test assertion by @vegerot in https://github.com/prometheus/client_golang/pull/1153
• Added interactive tutorial [kubeCon] by @bwplotka in https://github.com/prometheus/client_golang/pull/1255
• Fixed tutorial. by @bwplotka in https://github.com/prometheus/client_golang/pull/1256
• Bump golang.org/x/sys from 0.6.0 to 0.7.0 by @dependabot in https://github.com/prometheus/client_golang/pull/1265
• Cleanup proto use in tests by @SuperQ in https://github.com/prometheus/client_golang/pull/1264
• Fix tutorial on WSL-based systems by @marevers in https://github.com/prometheus/client_golang/pull/1257
• Fix undefined execution order in return statements by @PiotrLewandowski323 in https://github.com/prometheus/client_golang/pull/1260
• Merge release 1.15.1 to main by @bwplotka in https://github.com/prometheus/client_golang/pull/1267
• GitHub Workflows security hardening by @sashashura in https://github.com/prometheus/client_golang/pull/1180
• add process start time header to client_golang prometheus by @logicalhan in https://github.com/prometheus/client_golang/pull/1278
• Fix bug in bucket key calculation by @beorn7 in https://github.com/prometheus/client_golang/pull/1279
• Bump github.com/prometheus/procfs from 0.9.0 to 0.10.1 by @dependabot in https://github.com/prometheus/client_golang/pull/1283
• Reduce constrainLabels allocations by @khasanovbi in https://github.com/prometheus/client_golang/pull/1272
• added circleci as gh action YAML by @krishnaduttPanchagnula in https://github.com/prometheus/client_golang/pull/1281
• Improve metricUnits runtime by @avlitman in https://github.com/prometheus/client_golang/pull/1286
• Moving fully to GH actions. by @bwplotka in https://github.com/prometheus/client_golang/pull/1288
• Fix docstring references to renamed native histogram fields / functions. by @juliusv in https://github.com/prometheus/client_golang/pull/1290
• Fixed README & CHANGELOG; Added fmt makefile command (+bingo) for easier contributions. by @bwplotka in https://github.com/prometheus/client_golang/pull/1289

New Contributors

• @vegerot made their first contribution in https://github.com/prometheus/client_golang/pull/1153
• @marevers made their first contribution in https://github.com/prometheus/client_golang/pull/1257
• @PiotrLewandowski323 made their first contribution in https://github.com/prometheus/client_golang/pull/1260
• @sashashura made their first contribution in https://github.com/prometheus/client_golang/pull/1180
• @logicalhan made their first contribution in https://github.com/prometheus/client_golang/pull/1278
• @khasanovbi made their first contribution in https://github.com/prometheus/client_golang/pull/1272
• @krishnaduttPanchagnula made their first contribution in https://github.com/prometheus/client_golang/pull/1281
• @avlitman made their first contribution in https://github.com/prometheus/client_golang/pull/1286

Full Changelog: https://github.com/prometheus/client_golang/compare/v1.15.1...v1.16.0