What's Changed

• Use RLock instead of Lock to prevent thread deadlock by @mbeijen in #1008
• In the main description, replace “Python 3” with just “Python” by @musicinmybrain in #1011
• Release HTTP/2 semaphore permit on NoAvailableStreamIDError by @mbeijen in #1012
• Move HTTP/2 stream events cleanup inside _state_lock by @mbeijen in #1013
• Allow version 15 of rich in httpx2’s cli extra by @musicinmybrain in #1015
• Test with chardet 6.0.0.post1 by @musicinmybrain in #1017
• Mark httpx2 and httpcore2 classifiers as Production/Stable by @Kludex in #1021
• Parse empty Digest auth realm without crashing by @mbeijen in #1023
• Decode IDNA labels in non-leading host positions by @mbeijen in #1018
• Enable ruff UP rule by @Kludex in #1025
• Limit chained Content-Encoding decoders to 5 by @Kludex in #1027
• Use a custom deprecation warning visible by default by @Kludex in #1029
• Make the code more strictly typed without changing the type checker by @Kludex in #1030
• Version 2.4.0 by @Kludex in #1031

New Contributors

• @musicinmybrain made their first contribution in #1011

Full Changelog: v2.3.0...v2.4.0

What's Changed

• Allow default_encoding callable to return None by @Kludex in #951
• perf: use memoryview in write() to avoid copies by @mbeijen in #954
• perf: use anyio fast_acquire for Lock and Semaphore by @mbeijen in #970
• Make zstd import optional on Python 3.14 by @Kludex in #1000
• Switch from certifi to truststore for default SSL verification by @Kludex in #209
• Switch httpcore2 from certifi to truststore for default SSL verification by @Kludex in #1002
• Store elapsed time on stream wrapper to avoid reference cycles by @mbeijen in #948
• perf: Rewrite _assign_requests_to_connections as a single-pass loop by @mbeijen in #974
• create_ssl_context: raise when verify is a str and cert is provided by @mbeijen in #990

New Contributors

• @hugovk made their first contribution in #960
• @cclauss made their first contribution in #972
• @lundberg made their first contribution in #978
• @angryfoxx made their first contribution in #977

Full Changelog: v2.2.0...v2.3.0

What's Changed

• Handle multi-frame zstd streams split across chunks by @mbeijen in #946
• Do a lazy import of the _main CLI module by @mbeijen in #947

Full Changelog: v2.1.0...v2.2.0

What's Changed

• Drop Python 3.9 support, add Python 3.14 by @Kludex in #208
• Use stdlib compression.zstd for Zstd decompression on Python 3.14+ by @Kludex in #932
• Bundle LICENSE.md in httpx2 and httpcore2 sdists by @Kludex in #938
• Wait for positive HTTP/2 flow-control credit when stream window goes negative by @mbeijen in #935

New Contributors

• @hramezani made their first contribution in #931
• @mbeijen made their first contribution in #936

Full Changelog: v2.0.0...v2.1.0

First official release!

This is fully compatible with latest httpx.