• breaking: Remove unused async-stream feature, which was accidentally
  introduced as an implicit feature through an optional dependency which was no
  longer being used (#3298)
• breaking: option_layer now maps the Response body type to axum::body::Body (#3469)
• breaking: Some new features are added which need to be opted in (#3485).
  • Cached extractor requires cached feature.
  • The handler utilities require handler feature.
  • The middleware utilities require middleware feature.
  • OptionalPath extractor requires optional-path feature.
  • The routing utilities require routing feature.
  • WithRejection extractor requires with-rejection feature.
• breaking: Upgraded prost dependency to v0.14. (#3517)