tokio-1.47.5
tokio-rs/tokiotokio-1.47.5May 7, 2026by Darksonn
AI Summary
A patch release resolving synchronization issues in Tokio's mpsc and RwLock components to correct length underflow and receiver notification logic.
Key Highlights
- Fixed underflow in mpsc channel `len()`
- Fixed notify receivers in mpsc `OwnedPermit::release()`
- Fixed RwLock max_readers requirement
Full Release Notes
# 1.47.5 (May 7th, 2026) ### Fixed * sync: fix underflow in mpsc channel `len()` ([#8062]) * sync: notify receivers in mpsc `OwnedPermit::release()` method ([#8075]) * sync: require that an `RwLock` has `max_readers != 0` ([#8076]) * sync: return `Empty` from `try_recv()` when mpsc is closed with outstanding permits ([#8074]) [#8062]: https://github.com/tokio-rs/tokio/pull/8062 [#8074]: https://github.com/tokio-rs/tokio/pull/8074 [#8075]: https://github.com/tokio-rs/tokio/pull/8075 [#8076]: https://github.com/tokio-rs/tokio/pull/8076