-`std::task::spawn_blocking` is now stabilized. We consider it a fundamental API for bridging between blocking code and async code, and we widely use it within async-std's own implementation.

-`async_std::task::spawn_blocking` is now stabilized. We consider it a fundamental API for bridging between blocking code and async code, and we widely use it within async-std's own implementation.

- Add`TryFrom` implementations to convert`TcpListener`,`TcpStream`,`UdpSocket`,`UnixDatagram`,`UnixListener`, and`UnixStream` to their synchronous equivalents, including putting them back into blocking mode.

- Fixed documentation for`UdpSocket::send` ([#671](https://github.com/async-rs/async-std/pull/671))

- Fixed typo in stream documentation ([#650](https://github.com/async-rs/async-std/pull/650))

- Fixed typo on`sync::JoinHandle` documentation ([#659](https://github.com/async-rs/async-std/pull/659))

- Removed use of`std::error::Error::description` which failed CI ([#661](https://github.com/async-rs/async-std/pull/662))

- Removed use of`std::error::Error::description` which failed CI ([#661](https://github.com/async-rs/async-std/pull/661))

- Removed the use of rustfmt's unstable`format_code_in_doc_comments` option which failed CI ([#685](https://github.com/async-rs/async-std/pull/685))

- Fixed a code typo in the`task::sleep` example ([#688](https://github.com/async-rs/async-std/pull/688))