* Allow additional responses to use status code ranges (like `5XX` and `4XX`) and `"default"`. [#435](https://github.com/tiangolo/fastapi/pull/435) by [@divums](https://github.com/divums).
* Fix using `"default"` extra response with status codes at the same time. PR [#489](https://github.com/tiangolo/fastapi/pull/489).
* Allow additional responses to use status code ranges (like `5XX` and `4XX`) and `"default"`. PR [#435](https://github.com/tiangolo/fastapi/pull/435) by [@divums](https://github.com/divums).