* ✨ Allow setting the `response_class` to `RedirectResponse` and returning the URL from the function. PR [#3457](https://github.com/tiangolo/fastapi/pull/3457) by [@tiangolo](https://github.com/tiangolo).
* 🐛 Support custom OpenAPI / JSON Schema fields in the generated output OpenAPI. PR [#1429](https://github.com/tiangolo/fastapi/pull/1429) by [@jmagnusson](https://github.com/jmagnusson).