Refer to the Upgrade Guide for tips on how to upgrade from 3.x.

Changes since 4.0.0-rc.1

Bug Fixes

• Use #[skip_serializing_none] (025889e)
• Overhaul deserialization of claims and client metadata (5632960)

Other Changes

• Bump oauth2 to 5.0.0 (dbb3f5c)

Full Changelog: 4.0.0-rc.1...4.0.0

Summary of changes since 3.5.0

Breaking Changes

• Bump oauth2 to 5.0.0-alpha.4 (19043b1)
• Fix EdDSA signature verification (1d97e0e)
• Replace JWT-related generic traits with associated types (5f039ee)
• Bump oauth2 to 5.0.0-alpha.3 along with http, reqwest, and base64 (7efc894)
• Remove unused nightly feature (c67ffe9)
• Update oauth2 to 5.0.0-alpha.2 (fd40498)
• Remove jwk-alg Cargo feature (73ee82f)

New Features

• Add support for specific JOSE header types (#161)
• Implement From<> for unwrapping newtypes
• Derive Eq for types that already derive PartialEq (898ead2)

Bug Fixes

• Use #[skip_serializing_none] (025889e)
• Overhaul deserialization of claims and client metadata (5632960)
• Export CoreJsonCurveType (#182)
• Return impl Future instead of Pin<Box<dyn Future>> (#158)
• Propagate timing-resistant-secret-traits feature flag to oauth2 (1c9f770)
• Fix doc comment URL (1131afa)

Other Changes

• Bump oauth2 to 5.0.0 (dbb3f5c)
• Remove defunct sponsorship from README
• Add upgrade guide (6852dcc)
• Address clippy lints from Rust 1.77 (29aad1c)
• Update list of example OIDC providers (fcada17)
• Update README (fd077bd)
• Remove private JsonCurveType trait (ffde16a)
• Refactor crate into smaller private modules (e87580c)
• Remove empty leading and trailing lines from doc comments (38baa1a)
• Improve Display output of ClientRegistrationError (3a801c9)
• Address clippy lints and clean up examples (9aadf67)
• Add keywords to Cargo.toml (06e9d6c

Full Changelog: 3.5.0...4.0.0