1.28.0 (April 25th, 2023)

Added

• io: add AsyncFd::async_io (#5542)
• io: impl BufMut for ReadBuf (#5590)
• net: add recv_buf for UdpSocket and UnixDatagram (#5583)
• sync: add OwnedSemaphorePermit::semaphore (#5618)
• sync: add same_channel to broadcast channel (#5607)
• sync: add watch::Receiver::wait_for (#5611)
• task: add JoinSet::spawn_blocking and JoinSet::spawn_blocking_on (#5612)

Changed

• deps: update windows-sys to 0.48 (#5591)
• io: make read_to_end not grow unnecessarily (#5610)
• macros: make entrypoints more efficient (#5621)
• sync: improve Debug impl for RwLock (#5647)
• sync: reduce contention in Notify (#5503)

Fixed

• net: support get_peer_cred on AIX (#5065)
• sync: avoid deadlocks in broadcast with custom wakers (#5578)

Documented

• sync: fix typo in Semaphore::MAX_PERMITS (#5645)
• sync: fix typo in tokio::sync::watch::Sender docs (#5587)