* When using Pydantic models with `__root__`, use the internal value in `jsonable_encoder`. PR [#1524](https://github.com/tiangolo/fastapi/pull/1524) by [@patrickkwang](https://github.com/patrickkwang).
* Update docs for path parameters. PR [#1521](https://github.com/tiangolo/fastapi/pull/1521) by [@yankeexe](https://github.com/yankeexe).
* Update docs for first steps, links and rewording. PR [#1518](https://github.com/tiangolo/fastapi/pull/1518) by [@yankeexe](https://github.com/yankeexe).
* Enable `showCommonExtensions` in Swagger UI to show additional validations like `maxLength`, etc. PR [#1466](https://github.com/tiangolo/fastapi/pull/1466) by [@TiewKH](https://github.com/TiewKH).