• Breaking API change: ALPN protocols offered by the client are passed to the server certificate resolution trait (ResolvesServerCert).
• Breaking API change: The server certificate resolution trait now takes a struct containing its arguments, so new data can be passed to these functions without further breaking changes.
• Signature schemes offered by the client are now filtered to those compatible with the client-offered ciphersuites. Prior to this change it was likely that server key type switching would not work for clients that offer signature schemes mismatched with their ciphersuites.
• Add manual with goal-oriented documentation, and rationale for design decisions.
• Breaking API change: AlwaysResolvesClientCert::new is now fallible, as is ClientConfig::set_single_client_cert.

What's Changed

• StreamOwned: fix get_mut signature by @Keruspe in https://github.com/rustls/rustls/pull/295
• Add WriteV implementation for any Write objects by @jpopesculian in https://github.com/rustls/rustls/pull/296
• Filter sigschemes from client for compatibility with suite by @ctz in https://github.com/rustls/rustls/pull/300
• Update criterion requirement from 0.2.11 to 0.3.0 by @dependabot-preview in https://github.com/rustls/rustls/pull/294
• Update docopt requirement from ~1.0 to ~1.1 by @dependabot-preview in https://github.com/rustls/rustls/pull/293
• Add ALPN offer to server cert resolver by @ctz in https://github.com/rustls/rustls/pull/301
• ClientHello to resolve server certs by @jeromegn in https://github.com/rustls/rustls/pull/304
• Allow applications to pass data through resumption tickets and reject early data by @Ralith in https://github.com/rustls/rustls/pull/306
• Upgrade base64 dependency to 0.11 by @alex in https://github.com/rustls/rustls/pull/317
• Update webpki-roots requirement from 0.17.0 to 0.18.0 by @dependabot-preview in https://github.com/rustls/rustls/pull/313
• Update env_logger requirement from 0.6.1 to 0.7.1 by @dependabot-preview in https://github.com/rustls/rustls/pull/316
• Update QUIC key update label for draft 24 by @Ralith in https://github.com/rustls/rustls/pull/320
• Expose WebPKIVerifier under dangerous feature by @gorup in https://github.com/rustls/rustls/pull/314
• remove unnecessary dependency from rustls-mio by @bluejekyll in https://github.com/rustls/rustls/pull/323
• Remove unused TLSError::InvalidDNS variant by @link2xt in https://github.com/rustls/rustls/pull/324
• Center Ferris and overview text by @hlb8122 in https://github.com/rustls/rustls/pull/325
• Update webpki-roots requirement from 0.18.0 to 0.19.0 by @dependabot-preview in https://github.com/rustls/rustls/pull/338
• Enable documentation on docs.rs for items behind feature flags by @aloucks in https://github.com/rustls/rustls/pull/343

New Contributors

• @jpopesculian made their first contribution in https://github.com/rustls/rustls/pull/296
• @gorup made their first contribution in https://github.com/rustls/rustls/pull/314
• @bluejekyll made their first contribution in https://github.com/rustls/rustls/pull/323
• @link2xt made their first contribution in https://github.com/rustls/rustls/pull/324
• @hlb8122 made their first contribution in https://github.com/rustls/rustls/pull/325
• @aloucks made their first contribution in https://github.com/rustls/rustls/pull/343

Full Changelog: https://github.com/rustls/rustls/compare/v/0.16.0...v/0.17.0