📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest changes
 
+* Update docs in [Python Types Intro](https://fastapi.tiangolo.com/python-types/) to include info about `Optional`. Original PR [#1377](https://github.com/tiangolo/fastapi/pull/1377) by [@yaegassy](https://github.com/yaegassy).
 * Fix support for callable class dependencies with `yield`. PR [#1365](https://github.com/tiangolo/fastapi/pull/1365) by [@mrosales](https://github.com/mrosales).
 * Fix/remove incorrect error logging when a client sends invalid payloads. PR [#1351](https://github.com/tiangolo/fastapi/pull/1351) by [@dbanty](https://github.com/dbanty).
 * Add translation to Chinese for [First Steps - 第一步](https://fastapi.tiangolo.com/zh/tutorial/first-steps/). PR [#1323](https://github.com/tiangolo/fastapi/pull/1323) by [@waynerv](https://github.com/waynerv).