• [Django] Pass correct registry to MultiProcessCollector by @jelly in #1152

What's Changed

• Add an AIOHTTP exporter by @Lexicality in #1139
• Add remove_matching() method for metric label deletion by @hazel-shen in #1121
• fix(multiprocess): avoid double-building child metric names (#1035) by @hazel-shen in #1146
• Don't interleave histogram metrics in multi-process collector by @cjwatson in #1148
• Relax registry type annotations for exposition by @cjwatson in #1149
• Added compression support in pushgateway by @ritesh-avesha in #1144
• Add Django exporter (#1088) by @Chadys in #1143

Full Changelog: v0.23.1...v0.24.0

What's Changed

• UTF-8 Content Negotiation by @ywwg in #1102
• Re include test data by @mgorny in #1113
• Improve parser performance by @csmarchbanks in #1117
• Add support to write_to_textfile for custom tmpdir by @aadityadhruv in #1115
• OM text exposition for NH by @vesari in #1087
• Fix bug which caused metric publishing to not accept query string parameters in ASGI app by @hacksparr0w in #1125
• Emit native histograms only when OM 2.0.0 is requested by @vesari in #1128
• fix: remove space after comma in openmetrics exposition by @theSuess in #1132
• Fix issue parsing double spaces after # HELP/# TYPE by @csmarchbanks in #1134

New Contributors

• @mgorny made their first contribution in #1113
• @aadityadhruv made their first contribution in #1115
• @hacksparr0w made their first contribution in #1125
• @theSuess made their first contribution in #1132

Full Changelog: v0.22.1...v0.23.0

What's Changed

• Add support for native histograms in OM parser by @vesari in #1040
• Add exemplar support to CounterMetricFamily [Fix #1062] by @lod in #1063
• Fix write_to_textfile leaves back temp files on errors by @ethanschen in #1066
• Support UTF-8 in metric creation, parsing, and exposition by @ywwg in #1070
• Fix incorrect use of reentrant locks by @suligap in #1076
• Remove Python 3.8 support by @kajinamit in #1075
• Check if labelvalues is in _metrics before deletion in MetricWrapperBase.remove() by @GlorifiedPig in #1077
• Add support for Python 3.13 by @Pliner in #1080
• Correct nh sample span structure and parsing by @vesari in #1082
• Migrate from setup.py to pyproject.toml by @csmarchbanks in #1084
• Changed pushgateway.md by @mallika-mur in #1083
• Fix order-dependent flaky tests related to UTF-8 support by @dg98 in #1093
• Update versions for docs Github actions by @csmarchbanks in #1096
• Documentation Updates by @ethanschen in #1097
• Add note on gauge.set_function not working with multiprocessing by @aapeliv in #1098
• Don't send an empty HTTP header for /favicon.ico by @noselasd in #1101

Full Changelog: v0.21.0...v0.22.0

What's Changed

[BUGFIX] Revert incorrect use of reentrant locks. #1076

What's Changed

[CHANGE] Reject invalid (not GET or OPTION) HTTP methods. #1019
[ENHANCEMENT] Allow writing metrics when holding a lock for the metric in the same thread. #1014
[BUGFIX] Check for and error on None label values. #1012
[BUGFIX] Fix timestamp comparison. #1038

What's Changed

• [CHANGE/BUGFIX] Update OpenMetrics Content Type to 1.0.0. #997
• [FEATURE] Enable graceful shutdown for start_{http,wsgi}_server by returning the server and thread. #999
• [FEATURE] Allow resetting counter metrics. #1005
• [BUGFIX] wsgi server: address family discovery is not quite right. #1006

What's Changed

[FEATURE] support HTTPS/TLS in start_http_server. #946
[BUGFIX] fix: error in determining timestamp less than. #979