• Allow cipher suite enum items to be stringified.
• Improve documentation of configuration builder types.
• Ensure unused cipher suites can be removed at link-time.
• Ensure single-use error types implement std::error::Error, and are public.

What's Changed

• Disable cargo fuzz smoketest by @ctz in https://github.com/rustls/rustls/pull/830
• Add some more intra-doc links for keylog.rs by @niklasf in https://github.com/rustls/rustls/pull/832
• Implement std::error::Error for InvalidDnsNameError by @niklasf in https://github.com/rustls/rustls/pull/833
• Implement std::error::Error for SignError by @paolobarbolini in https://github.com/rustls/rustls/pull/837
• Make InvalidDnsNameError part of the public API by @dkales in https://github.com/rustls/rustls/pull/844
• Revert "Disable cargo fuzz smoketest" by @djc in https://github.com/rustls/rustls/pull/835
• Improve ConfigBuilder docs by @djc in https://github.com/rustls/rustls/pull/836
• Expose enum variant names as str by @djc in https://github.com/rustls/rustls/pull/831
• Don't reference ALL_CIPHER_SUITES from ClientSessionValue methods by @djc in https://github.com/rustls/rustls/pull/847
• Avoid unnecessary borrowing of references by @djc in https://github.com/rustls/rustls/pull/845
• Disallow zero length fragments by @davidv1992 in https://github.com/rustls/rustls/pull/848

New Contributors

• @niklasf made their first contribution in https://github.com/rustls/rustls/pull/832
• @paolobarbolini made their first contribution in https://github.com/rustls/rustls/pull/837
• @dkales made their first contribution in https://github.com/rustls/rustls/pull/844

Full Changelog: https://github.com/rustls/rustls/compare/v/0.20.0...v/0.20.1