📝 Update release notes

Author: tiangolo

docs/en/docs/release-notes.md

@@ -2,7 +2,17 @@
 
 ## Latest changes
 
+### Features
+
+* Add support for injecting `HTTPConnection` (as `Request` and `WebSocket`). Useful for sharing app state in dependencies. PR [#1827](https://github.com/tiangolo/fastapi/pull/1827) by [@nsidnev](https://github.com/nsidnev).
+* Export `WebSocketDisconnect` and add example handling WebSocket disconnections to docs. PR [#1822](https://github.com/tiangolo/fastapi/pull/1822) by [@rkbeatss](https://github.com/rkbeatss).
+
+### Docs
+
 * Fix empty log message in docs example about handling errors. PR [#1815](https://github.com/tiangolo/fastapi/pull/1815) by [@manlix](https://github.com/manlix).
+
+### Internal
+
 * Add Flake8 linting. Original PR [#1774](https://github.com/tiangolo/fastapi/pull/1774) by [@MashhadiNima](https://github.com/MashhadiNima).
 * Disable Gitter bot, as it's currently broken, and Gitter's response doesn't show the problem. PR [#1853](https://github.com/tiangolo/fastapi/pull/1853).