Sourced from anyio's releases.

4.12.1

• Changed all functions currently raising the private NoCurrentAsyncBackend exception (since v4.12.0) to instead raise the public NoEventLoopError exception (#1048)
• Fixed anyio.functools.lru_cache not working with instance methods (#1042)

4.12.0

• Added support for asyncio's task call graphs on Python 3.14 and later when using AnyIO's task groups (#1025)
• Added an asynchronous implementation of the functools module (#1001)
• Added support for uvloop=True on Windows via the winloop implementation (#960; PR by @​Vizonex)
• Added support for use as a context manager to anyio.lowlevel.RunVar (#1003)
• Added __all__ declarations to public submodules (anyio.lowlevel etc.) (#1009)
• Added the ability to set the token count of a CapacityLimiter to zero (#1019; requires Python 3.10 or later when using Trio)
• Added parameters case_sensitive and recurse_symlinks along with support for path-like objects to anyio.Path.glob() and anyio.Path.rglob() (#1033; PR by @​northisup)
• Dropped sniffio as a direct dependency and added the get_available_backends() function (#1021)
• Fixed Process.stdin.send() not raising ClosedResourceError and BrokenResourceError on asyncio. Previously, a non-AnyIO exception was raised in such cases (#671; PR by @​gschaffner)
• Fixed Process.stdin.send() not checkpointing before writing data on asyncio (#1002; PR by @​gschaffner)
• Fixed a race condition where cancelling a Future from BlockingPortal.start_task_soon() would sometimes not cancel the async function (#1011; PR by @​gschaffner)
• Fixed the presence of the pytest plugin causing breakage with older versions of pytest (<= 6.1.2) (#1028; PR by @​saper)
• Fixed a rarely occurring RuntimeError: Set changed size during iteration while shutting down the process pool when using the asyncio backend (#985)

4.11.0

• Added support for cancellation reasons (the reason parameter to CancelScope.cancel()) (#975)
• Bumped the minimum version of Trio to v0.31.0
• Added the ability to enter the event loop from foreign (non-worker) threads by passing the return value of anyio.lowlevel.current_token() to anyio.from_thread.run() and anyio.from_thread.run_sync() as the token keyword argument (#256)
• Added pytest option (anyio_mode = "auto") to make the pytest plugin automatically handle all async tests (#971)
• Added the anyio.Condition.wait_for() method for feature parity with asyncio (#974)
• Changed the default type argument of anyio.abc.TaskStatus from Any to None (#964)
• Fixed TCP listener behavior to guarantee the same ephemeral port is used for all socket listeners when local_port=0 (#857; PR by @​11kkw and @​agronholm)
• Fixed inconsistency between Trio and asyncio where a TCP stream that previously raised a BrokenResourceError on send() would still raise BrokenResourceError after the stream was closed on asyncio, but ClosedResourceError on Trio. They now both raise a ClosedResourceError in this scenario. (#671)

4.10.0

• Added the feed_data() method to the BufferedByteReceiveStream class, allowing users to inject data directly into the buffer
• Added various class methods to wrap existing sockets as listeners or socket streams:
  • SocketListener.from_socket()
  • SocketStream.from_socket()
  • UNIXSocketStream.from_socket()
  • UDPSocket.from_socket()
  • ConnectedUDPSocket.from_socket()
  • UNIXDatagramSocket.from_socket()
  • ConnectedUNIXDatagramSocket.from_socket()
• Added a hierarchy of connectable stream classes for transparently connecting to various remote or local endpoints for exchanging bytes or objects
• Added context manager mix-in classes (anyio.ContextManagerMixin and anyio.AsyncContextManagerMixin) to help write classes that embed other context managers, particularly cancel scopes or task groups (#905; PR by @​agronholm and @​tapetersen)
• Added the ability to specify the thread name in start_blocking_portal() (#818; PR by @​davidbrochart)
• Added anyio.notify_closing to allow waking anyio.wait_readable and anyio.wait_writable before closing a socket. Among other things, this prevents an OSError on the ProactorEventLoop. (#896; PR by @​graingert)
• Incorporated several documentation improvements from the EuroPython 2025 sprint (special thanks to the sprinters: Emmanuel Okedele, Jan Murre, Euxenia Miruna Goia and Christoffer Fjord)
• Added a documentation page explaining why one might want to use AnyIO's APIs instead of asyncio's
• Updated the to_interpreters module to use the public concurrent.interpreters API on Python 3.14 or later
• Fixed anyio.Path.copy() and anyio.Path.copy_into() failing on Python 3.14.0a7
• Fixed return annotation of __aexit__ on async context managers. CMs which can suppress exceptions should return bool, or None otherwise. (#913; PR by @​Enegg)
• Fixed rollover boundary check in SpooledTemporaryFile so that rollover only occurs when the buffer size exceeds max_size (#915; PR by @​11kkw)
• Migrated testing and documentation dependencies from extras to dependency groups

... (truncated)

• a0dccbd Bumped up the version
• e1121a7 Enabled tests for the 4.12.x branch
• 69ab43e Fixed anyio.functools.lru_cache not working with methods (#1056)
• 4f4b33e Remove BlockingPortal.__new__ hack (#1053)
• af17d89 Replaced the NoCurrentAsyncBackend exception with NoEventLoopError (#1049)
• 4310264 Updated pre-commit modules
• 0cc6723 Bump the github-actions group with 3 updates (#1051)
• bc021b6 Fixed the download-artifact settings to retain the expected behavior
• c6000aa Corrected the format of the version in the changelog
• 9d1bfe0 Bumped up the version
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