tokio-1.47.0

tokio-rs/tokiotokio-1.47.0Jul 26, 2025by Darksonn

AI Summary

This release introduces cooperative scheduling features with poll_proceed and cooperative in the coop module, adds SetOnce to the sync module similar to std::sync::OnceLock, and adds sync::Notify::notified_owned() for owned notifications.

Key Highlights

Added coop::cooperative and coop::poll_proceed for cooperative scheduling
Added sync::SetOnce for one-time initialization
Added sync::Notify::notified_owned() returning OwnedNotified
Upgraded windows-sys 0.52 to 0.59
Updated to socket2 v0.6
Improved AtomicWaker::wake performance

New Features

coop: add cooperative and poll_proceed
sync: add SetOnce
sync: add sync::Notify::notified_owned()

Full Release Notes

# 1.47.0 (July 25th, 2025)

This release adds `poll_proceed` and `cooperative` to the `coop` module for
cooperative scheduling, adds `SetOnce` to the `sync` module which provides
similar functionality to [`std::sync::OnceLock`], and adds a new method
`sync::Notify::notified_owned()` which returns an `OwnedNotified` without
a lifetime parameter.

## Added

- coop: add `cooperative` and `poll_proceed` ([#7405])
- sync: add `SetOnce` ([#7418])
- sync: add `sync::Notify::notified_owned()` ([#7465])

## Changed

- deps: upgrade windows-sys 0.52 → 0.59 ([#7117])
- deps: update to socket2 v0.6 ([#7443])
- sync: improve `AtomicWaker::wake` performance ([#7450])

## Documented

- metrics: fix listed feature requirements for some metrics ([#7449])
- runtime: improve safety comments of `Readiness<'_>` ([#7415])


[#7405]: https://github.com/tokio-rs/tokio/pull/7405
[#7415]: https://github.com/tokio-rs/tokio/pull/7415
[#7418]: https://github.com/tokio-rs/tokio/pull/7418
[#7449]: https://github.com/tokio-rs/tokio/pull/7449
[#7450]: https://github.com/tokio-rs/tokio/pull/7450
[#7465]: https://github.com/tokio-rs/tokio/pull/7465