Sourced from tokio's releases.

Tokio v0.3.4

Fixed

• stream: StreamMap Default impl bound (#3093).
• io: AsyncFd::into_inner() should deregister the FD (#3104).

Changed

• meta: parking_lot feature enabled with full (#3119).

Added

• io: AsyncWrite vectored writes (#3149).
• net: TCP/UDP readiness and non-blocking ops (#3130, #2743, #3138).
• net: TCP socket option (linger, send/recv buf size) (#3145, #3143).
• net: PID field in UCred with solaris/illumos (#3085).
• rt: runtime::Handle allows spawning onto a runtime (#3079).
• sync: Notify::notify_waiters() (#3098).
• sync: acquire_many(), try_acquire_many() to Semaphore (#3067).

Tokio v0.3.3

Fixes a soundness hole by adding a missing Send bound to Runtime::spawn_blocking().

Fixed

• rt: include missing Send, fixing soundness hole (#3089).
• tracing: avoid huge trace span names (#3074).

Added

• net: TcpSocket::reuseport(), TcpSocket::set_reuseport() (#3083).
• net: TcpSocket::reuseaddr() (#3093).
• net: TcpSocket::local_addr() (#3093).
• net: add pid to UCred (#2633).

Tokio v0.3.2

Adds AsyncFd as a replacement for v0.2's PollEvented.

Fixed

• io: fix a potential deadlock when shutting down the I/O driver (#2903).
• sync: RwLockWriteGuard::downgrade() bug (#2957).

Added

• io: AsyncFd for receiving readiness events on raw FDs (#2903).
• net: poll_* function on UdpSocket (#2981).
• net: UdpSocket::take_error() (#3051).
• sync: oneshot::Sender::poll_closed() (#3032).

Tokio v0.3.1

This release fixes a use-after-free in the IO driver. Additionally, the read_buf and write_buf methods have been added back to the IO traits, as the bytes crate is now on track to reach version 1.0 together with Tokio.

Fixed

• net: fix use-after-free (#3019).

... (truncated)

• 0854858 chore: prepare v0.3.5 release (#3201)
• 7707ba8 io: add AsyncFd::with_interest (#3167)
• 72d6346 macros: #[tokio::main] can be used on non-main (#3199)
• a85fdb8 runtime: test for shutdown_timeout(0) (#3196)
• c55d846 util: add rt to tokio-util full feature (#3194)
• 0acd06b runtime: fix shutdown_timeout(0) blocking (#3174)
• 4912943 signal: expose CtrlC stream on windows (#3186)
• 5e406a7 macros: fix outdated documentation (#3180)
• de33ee8 time: replace 'ouClockTimeide' in internal docs with 'outside' (#3171)
• 874fc33 codec: add read_buffer_mut to FramedRead (#3166)
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