Release 3.12.15 · aio-libs/aiohttp Bug fixes Fixed :class:~aiohttp.DigestAuthMiddleware to preserve the algorithm case from the server's challenge in the authorization response. This improves compatibility with servers that perfor...

aiohttp 3.12.15 released! 🚀 Fixed DigestAuthMiddleware algorithm case preservation for better server compatibility. Plus improved docs & packaging updates.

github.com/aio-libs/aio...

Release 3.12.13 · aio-libs/aiohttp Bug fixes Fixed auto-created :py:class:~aiohttp.TCPConnector not using the session's event loop when :py:class:~aiohttp.ClientSession is created without an explicit connector -- by :user:bdraco. ...

aiohttp 3.12.13 released! 🚀 Fixed auto-created TCPConnector not using session's event loop when ClientSession created without explicit connector.

github.com/aio-libs/aio...

Release 3.12.12 · aio-libs/aiohttp Bug fixes Fixed cookie unquoting to properly handle octal escape sequences in cookie values (e.g., \012 for newline) by vendoring the correct _unquote implementation from Python's http.cookies mo...

aiohttp 3.12.12: Fixed cookie handling bugs - proper octal escape sequences in values & Cookie header parsing now treats attributes as cookies per RFC 6265

github.com/aio-libs/aio...

Release 1.7.0 · aio-libs/frozenlist Features Added deepcopy support to FrozenList -- by :user:bdraco. Related issues and pull requests on GitHub: #659. Packaging updates and notes for downstreams Fixed an issue where frozenlist...

frozenlist 1.7.0: Added deepcopy support. Fixed debug in wheels for better performance. Line tracing now opt-in. Enforced Cython version pinning.

github.com/aio-libs/fro...

Release 0.3.2 · aio-libs/propcache Improved documentation Fixed incorrect decorator usage in the :func:~propcache.api.under_cached_property example code -- by :user:meanmail. Related issues and pull requests on GitHub: #109. Pac...

propcache 0.3.2: Fixed docs, upgraded to Cython 3.1, made line tracing opt-in to fix build issues & improve performance.

github.com/aio-libs/pro...

Release 3.12.11 · aio-libs/aiohttp Features Improved SSL connection handling by changing the default ssl_shutdown_timeout from 0.1 to 0 seconds. SSL connections now use Python's default graceful shutdown during normal operation bu...

aiohttp 3.12.11: Improved SSL handling with 0s shutdown timeout for instant abort on close. Graceful shutdown during normal ops. ssl_shutdown_timeout deprecated.

github.com/aio-libs/aio...

Release 3.12.10 · aio-libs/aiohttp Bug fixes Fixed leak of aiodns.DNSResolver when :py:class:~aiohttp.TCPConnector is closed and no resolver was passed when creating the connector -- by :user:Tasssadar. This was a regression intro...

aiohttp 3.12.10 fixes memory leak of aiodns.DNSResolver when TCPConnector closes without custom resolver. Regression from 3.12.0. Thanks Tasssadar

github.com/aio-libs/aio...

Release 3.12.9 · aio-libs/aiohttp Bug fixes Fixed IOBasePayload and TextIOPayload reading entire files into memory when streaming large files -- by :user:bdraco. When using file-like objects with the aiohttp client, the entire fi...

aiohttp 3.12.9: Fixed memory issue where IOBasePayload/TextIOPayload read entire files into memory when streaming. Now correctly chunks large file uploads (64KB chunks)

github.com/aio-libs/aio...

Release 3.12.8 · aio-libs/aiohttp Features Added preemptive digest authentication to :class:~aiohttp.DigestAuthMiddleware -- by :user:bdraco. The middleware now reuses authentication credentials for subsequent requests to the sam...

aiohttp 3.12.8: Added preemptive digest auth to DigestAuthMiddleware! Reuses credentials for same protection space, avoiding extra auth trips. Matches browser behavior.

github.com/aio-libs/aio...

Release 3.12.7 · aio-libs/aiohttp Bug fixes Fixed cookie parsing to be more lenient when handling cookies with special characters in names or values. Cookies with characters like {, }, and / in names are now accepted instead of c...

aiohttp 3.12.7 is out! Major cookie fixes: handles special chars in names, fixes mismatched quotes, and preserves duplicate names with different domains/paths.

github.com/aio-libs/aio...

Release 3.12.6 · aio-libs/aiohttp Bug fixes Fixed spurious "Future exception was never retrieved" warnings for connection lost errors when the connector is not closed -- by :user:bdraco. When connections are lost, the exception i...

aiohttp 3.12.6 is out! This release fixes spurious "Future exception was never retrieved" warnings for connection lost errors.

github.com/aio-libs/aio...

Release 3.12.5 · aio-libs/aiohttp Features Added ssl_shutdown_timeout parameter to :py:class:~aiohttp.ClientSession and :py:class:~aiohttp.TCPConnector to control the grace period for SSL shutdown handshake on TLS connections. Th...

aiohttp 3.12.5 is out! New ssl_shutdown_timeout param to control TLS cleanup timeout (Python 3.11+). Plus perf boost with collections.abc types. Update now!

github.com/aio-libs/aio...

Release 3.12.4 · aio-libs/aiohttp Bug fixes Fixed connector not waiting for connections to close before returning from :meth:~aiohttp.BaseConnector.close (partial backport of :pr:3733) -- by :user:atemate and :user:bdraco. Relate...

🚀 aiohttp 3.12.4 is out! 🐛 Bug fix: connector now properly waits for connections to close before returning from close(). Thanks to github.com/atemate! #aiohttp #python

github.com/aio-libs/aio...

Release 3.12.3 · aio-libs/aiohttp Bug fixes Fixed memory leak in :py:meth:~aiohttp.CookieJar.filter_cookies that caused unbounded memory growth when making requests to different URL paths -- by :user:bdraco and :user:Cycloctane. ...

aiohttp 3.12.3 now available: Fixed memory leak in CookieJar.filter_cookies causing unbounded memory growth when making requests to different URL paths which was introduced in 3.10.x

github.com/aio-libs/aio...

Release 3.12.2 · aio-libs/aiohttp Bug fixes Fixed Content-Length header not being set to 0 for non-GET requests with None body -- by :user:bdraco. Non-GET requests (POST, PUT, PATCH, DELETE) with None as the body now correctly se...

aiohttp 3.12.2 is out! Fixes Content-Length header regression for non-GET requests with None body. Now correctly sets to 0. #python #aiohttp

github.com/aio-libs/aio...

🚀 aiohttp 3.12.1 is here!

This release solves long-standing issues with POST requests failing on redirects, and more recently, using digest authentication with request bodies.

No more "Form data has been processed already" or "I/O operation on closed file" errors!

Release 3.12.0 · aio-libs/aiohttp Bug fixes Fixed :py:attr:~aiohttp.web.WebSocketResponse.prepared property to correctly reflect the prepared state, especially during timeout scenarios -- by :user:bdraco Related issues and pull r...

3.12.0 is out!

New features:
• Client middleware for auth, logging & request modification
• HTTP Digest Auth
• Custom zlib backends
• Better resolver for better performance
• Small requests/responses now coalesce into single packets

Plus bug fixes, armv7l wheels & more!

github.com/aio-libs/aio...

Release 3.12.0b3 · aio-libs/aiohttp Bug fixes Response is now always True, instead of using MutableMapping behaviour (False when map is empty) Related issues and pull requests on GitHub: #10119. Fixed connection reuse for file-li...

aiohttp 3.12.0b3 is out now! We're aiming to release 3.12.0 early next week, and your feedback can make all the difference. Please keep testing. It helps us catch issues and ensure backwards compatibility.
github.com/aio-libs/aio...

Release 3.12.0b0 · aio-libs/aiohttp Bug fixes Response is now always True, instead of using MutableMapping behaviour (False when map is empty) Related issues and pull requests on GitHub: #10119. Fixed pytest plugin to not use dep...

aiohttp 3.12.0b0 is out! This beta adds client middleware support including DigestAuthMiddleware (RFC 7616), custom zlib backend support, socket_factory in TCPConnector, and shared DNS resolver management. Try it now: github.com/aio-libs/aio...

@webknjaz, @sirosen, @achimnol, @bdraco and @devanshu-ziphq

Had a great time hacking on @aiohttp.org (@bdraco.org and @webknjaz.me).

Got a few new contributors and sirosen lurking in, as well as achimnol the aiosignal maintainer.

Looking forward to gathering again tomorrow!

us.pycon.org/2025/events/...

#aio-libs #aiohttp #Python #PyConUS

Development Sprints PyCon US 2025

👋 @bdraco.org and @webknjaz.me are going to be running a @pycon.us sprint next week.

Come by and say hi!

The sprint link is us.pycon.org/2025/events/....

We've also started a GH project to organize possible vectors or work. But that's not restrictive.

#PyConUS #PyConUS2025 #Python

Release 3.11.18 · aio-libs/aiohttp Bug fixes Disabled TLS in TLS warning (when using HTTPS proxies) for uvloop and newer Python versions -- by :user:lezgomatt. Related issues and pull requests on GitHub: #7686. Fixed reading fra...

aiohttp 3.11.18 released

This is a bug fix release that also addresses a regression in 3.11.17

Full changes: github.com/aio-libs/aio...

Release 3.11.17 · aio-libs/aiohttp Miscellaneous internal changes Optimized web server performance when access logging is disabled by reducing time syscalls -- by :user:bdraco. Related issues and pull requests on GitHub: #10713. ...

aiohttp 3.11.17 released

This release improves performance of the WebSocket reader and the web server.

github.com/aio-libs/aio...

Release 1.6.0 · aio-libs/frozenlist Bug fixes Stopped implicitly allowing the use of Cython pre-release versions when building the distribution package -- by :user:ajsanchezsanz and :user:markgreene74. Related commits on GitHub: :c...

frozenlist 1.6.0 released

This release includes free-threading support

github.com/aio-libs/fro...

Thanks to months of consistent contributions by
lysnikolaou of @quansight.com (Lysandros Nikolaou), all of the mandatory dependencies of #aiohttp now ship free-threaded variants of #wheels!

This unlocks the same in aiohttp!

Find a minute to thank him, will you?

#aio-libs #Python #Packaging

Release 1.20.0 · aio-libs/yarl Features Implemented support for the free-threaded build of CPython 3.13 -- by :user:lysnikolaou. Related issues and pull requests on GitHub: #1456. Packaging updates and notes for downstreams ...

yarl 1.20.0 released

This release includes free-threading support.

github.com/aio-libs/yar...

Release 6.4.3 · aio-libs/multidict Bug fixes Fixed building the library in debug mode. Related issues and pull requests on GitHub: #1144. Fixed custom PyType_GetModuleByDef() when non-heap type object was passed. Related issues ...

multidict 6.4.3 released

The 6.4.x series significantly improves performances for many operations and fixes some long standing memory leaks.

full changes: github.com/aio-libs/mul...

codspeed: codspeed.io/aio-libs/mul...

Release 1.19.0 · aio-libs/yarl Bug fixes Fixed entire name being re-encoded when using :py:meth:yarl.URL.with_suffix -- by :user:NTFSvolume. Related issues and pull requests on GitHub: #1468. Features Started building armv...

yarl 1.19.0 Release

This release adds armv7l wheels, fixes a bug for `with_suffix`, and significantly improves performance when parsing query strings and unquoting.

yarl and aiohttp performances have improved significantly over the last year.

Full changes: github.com/aio-libs/yar...

Release 3.11.16 · aio-libs/aiohttp Bug fixes Replaced deprecated asyncio.iscoroutinefunction with its counterpart from inspect -- by :user:layday. Related issues and pull requests on GitHub: #10634. Fixed :class:multidict.CIMult...

aiohttp 3.11.16 release

This is a bugfix release

changes: github.com/aio-libs/aio...

Release 3.11.15 · aio-libs/aiohttp Bug fixes Reverted explicitly closing sockets if an exception is raised during create_connection -- by :user:bdraco. This change originally appeared in aiohttp 3.11.13 Related issues and pull req...

aiohttp 3.11.15 released

This is mainly a bugfix release with performance improvements for sending HTTP headers and reading WebSocket messages.

changes: github.com/aio-libs/aio...