Tokio v1.27.0

1.27.0 (March 27th, 2023)

This release bumps the MSRV of Tokio to 1.56. (#5559)

Added

• io: add async_io helper method to sockets (#5512)
• io: add implementations of AsFd/AsHandle/AsSocket (#5514, #5540)
• net: add UdpSocket::peek_sender() (#5520)
• sync: add RwLockWriteGuard::{downgrade_map, try_downgrade_map} (#5527)
• task: add JoinHandle::abort_handle (#5543)

Changed

• io: use memchr from libc (#5558)
• macros: accept path as crate rename in #[tokio::main] (#5557)
• macros: update to syn 2.0.0 (#5572)
• time: don't register for a wakeup when Interval returns Ready (#5553)

Fixed

• fs: fuse std iterator in ReadDir (#5555)
• tracing: fix spawn_blocking location fields (#5573)
• time: clean up redundant check in Wheel::poll() (#5574)

Documented

• macros: define cancellation safety (#5525)
• io: add details to docs of tokio::io::copy[_buf] (#5575)
• io: refer to ReaderStream and StreamReader in module docs (#5576)