• Upgrade required Starlette to 0.12.9, the new range is >=0.12.9,<=0.12.9.
  • Add State to FastAPI apps at app.state.
  • PR #593.
• Improve handling of custom classes for Requests and APIRoutes.
  • This helps to more easily solve use cases like:
    • Reading a body before and/or after a request (equivalent to a middleware).
    • Run middleware-like code only for a subset of path operations.
    • Process a request before passing it to a path operation function. E.g. decompressing, deserializing, etc.
    • Processing a response after being generated by path operation functions but before returning it. E.g. adding custom headers, logging, adding extra metadata.
  • New docs section: Custom Request and APIRoute class.
  • PR #589 by @dmontagu.
• Fix preserving custom route class in routers when including other sub-routers. PR #538 by @dmontagu.