Tokio v1.26.0

Fixed

• macros: fix empty join! and try_join! (#5504)
• sync: don't leak tracing spans in mutex guards (#5469)
• sync: drop wakers after unlocking the mutex in Notify (#5471)
• sync: drop wakers outside lock in semaphore (#5475)

Added

• fs: add fs::try_exists (#4299)
• net: add types for named unix pipes (#5351)
• sync: add MappedOwnedMutexGuard (#5474)

Changed

• chore: update windows-sys to 0.45 (#5386)
• net: use Message Read Mode for named pipes (#5350)
• sync: mark lock guards with #[clippy::has_significant_drop] (#5422)
• sync: reduce contention in watch channel (#5464)
• time: remove cache padding in timer entries (#5468)
• time: Improve Instant::now() perf with test-util (#5513)

Internal Changes

• io: use poll_fn in copy_bidirectional (#5486)
• net: refactor named pipe builders to not use bitfields (#5477)
• rt: remove Arc from Clock (#5434)
• sync: make notify_waiters calls atomic (#5458)
• time: don't store deadline twice in sleep entries (#5410)

Unstable

• metrics: add a new metric for budget exhaustion yields (#5517)

Documented

• io: improve AsyncFd example (#5481)
• runtime: document the nature of the main future (#5494)
• runtime: remove extra period in docs (#5511)
• signal: updated Documentation for Signals (#5459)
• sync: add doc aliases for blocking_* methods (#5448)
• sync: fix docs for Send/Sync bounds in broadcast (#5480)
• sync: document drop behavior for channels (#5497)
• task: clarify what happens to spawned work during runtime shutdown (#5394)
• task: clarify process::Command docs (#5413)
• task: fix wording with 'unsend' (#5452)
• time: document immediate completion guarantee for timeouts (#5509)
• tokio: document supported platforms (#5483)