• Yield an error from ConnectionCommon::read_tls() if buffers are full. Both a full deframer buffer and a full incoming plaintext buffer will now cause an error to be returned. Callers should call process_new_packets() and read out the plaintext data from reader() after each successful call to read_tls().
• The minimum supported Rust version is now 1.57.0 due to some dependencies requiring it.

What's Changed

• Abstract over internal deframer state by @djc in https://github.com/rustls/rustls/pull/881
• Fix issues due to tlsserver-mio and tlsclient-mio rename by @FrancisRussell in https://github.com/rustls/rustls/pull/1119
• fix incorrect deprecation message by @trinity-1686a in https://github.com/rustls/rustls/pull/1121
• Reenable unreachable_pub lint by @djc in https://github.com/rustls/rustls/pull/1117
• Upgrade CI to test ubuntu-20.04 instead of 18.04 by @djc in https://github.com/rustls/rustls/pull/1114
• More read_tls() backpressure by @djc in https://github.com/rustls/rustls/pull/1116
• doc: add links to the examples in the documentation by @usadson in https://github.com/rustls/rustls/pull/1132
• Fix clippy nightly nits by @ctz in https://github.com/rustls/rustls/pull/1135
• Server: Change Acceptor to only allow one attempt per ClientHello. by @briansmith in https://github.com/rustls/rustls/pull/976
• Measure coverage using cargo-llvm-cov by @ctz in https://github.com/rustls/rustls/pull/1143
• Lazily parse messages from the handshake joiner by @djc in https://github.com/rustls/rustls/pull/1141
• tls12: remove nested conditional compilation attributes by @djc in https://github.com/rustls/rustls/pull/1144
• Move benchmarks to benches directory by @jbr in https://github.com/rustls/rustls/pull/1146
• update github actions msrv to 1.57 so that base64 will build by @jbr in https://github.com/rustls/rustls/pull/1152
• use saturating add in ticket expiration by @jbr in https://github.com/rustls/rustls/pull/1151
• move doc(cfg(feature = …)) to original definitions by @jbr in https://github.com/rustls/rustls/pull/1156
• add a README for BoGo by @jbr in https://github.com/rustls/rustls/pull/1157
• Prepare for 0.20.8 by @ctz in https://github.com/rustls/rustls/pull/1160

New Contributors

• @FrancisRussell made their first contribution in https://github.com/rustls/rustls/pull/1119
• @trinity-1686a made their first contribution in https://github.com/rustls/rustls/pull/1121
• @usadson made their first contribution in https://github.com/rustls/rustls/pull/1132

Full Changelog: https://github.com/rustls/rustls/compare/v/0.20.7...v/0.20.8