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sleep() with a negative delay returns on asyncio but raises ValueError on trio

Status: Open.

#1306 In agronholm/anyio;

· onk3sh opened on Sep 1, 2026

Defer move_on_after() timer start to its use as a context manager

Status: Open.

#1298 In agronholm/anyio;

· agronholm opened on Aug 28, 2026

·  

5.0

UNIXSocket.aclose and _TrioSocketMixin.aclose in cancelled scope does not raise a cancelled error (does not checkpoint)

bugSomething isn't workingSomething isn't working

Status: Open.

#1288 In agronholm/anyio;

· graingert opened on Aug 23, 2026

concurrent anyio.aclose_forcefully fails to block until socket is closed on asyncio

bugSomething isn't workingSomething isn't working

Status: Open.

#1273 In agronholm/anyio;

· graingert opened on Aug 12, 2026

Fallbacks for threading-less environment?

enhancementNew feature or requestNew feature or request

Status: Open.

#1268 In agronholm/anyio;

· ryanking13 opened on Aug 6, 2026

test_shielded_cancel_sleep_time is unstable on slow build machines and slow platforms (e.g., ppc64le)

bugSomething isn't workingSomething isn't working

Status: Open.

#1263 In agronholm/anyio;

· mcepl opened on Aug 4, 2026

Expose a sendfile API for socket streams

enhancementNew feature or requestNew feature or request

Status: Open.

#1259 In agronholm/anyio;

· graingert opened on Jul 31, 2026

_deliver_cancellation re-arms for tasks skipped via _must_cancel, for which the retry can never do anything

Status: Open.

#1258 In agronholm/anyio;

· ZacharyHampton opened on Jul 30, 2026

asyncio backend: race in SocketStream.aclose() — transport.abort() raises AttributeError: 'NoneType' object has no attribute 'call_soon'

Status: Open.

#1250 In agronholm/anyio;

· ransomr opened on Jul 29, 2026

BrokenResourceError is the wrong error for a temporary Windows UDP reset

bugSomething isn't workingSomething isn't working

Status: Open.

#1239 In agronholm/anyio;

· graingert opened on Jul 24, 2026

UDPSocket.aclose() hangs on Windows when a send is in flight (regression from #1147)

Status: Open.

#1237 In agronholm/anyio;

· graingert opened on Jul 21, 2026

connect_tcp blindly prioritizes IPv6 even when the system has no globally routable IPv6 address

Status: Open.

#1230 In agronholm/anyio;

· kevin-lucifer opened on Jul 18, 2026