* Fix using recursive models in `response_model`. PR [#1164](https://github.com/tiangolo/fastapi/pull/1164) by [@voegtlel](https://github.com/voegtlel).
* Add docs for [Pycharm Debugging](https://fastapi.tiangolo.com/tutorial/debugging/). PR [#1096](https://github.com/tiangolo/fastapi/pull/1096) by [@youngquan](https://github.com/youngquan).
* Fix typo in docs. PR [#1148](https://github.com/tiangolo/fastapi/pull/1148) by [@PLNech](https://github.com/PLNech).
* Update Windows development environment instructions. PR [#1179](https://github.com/tiangolo/fastapi/pull/1179).