📝 Update release notes

[skip ci]

Author: github-actions[bot]

docs/en/docs/release-notes.md

@@ -16,6 +16,10 @@ hide:
 
 * ♻️ Simplify reading files in memory, do it sequentially instead of (fake) parallel. PR [#14884](https://github.com/fastapi/fastapi/pull/14884) by [@tiangolo](https://github.com/tiangolo).
 
+### Docs
+
+* 📝 Use `dfn` tag for definitions instead of `abbr` in docs. PR [#14744](https://github.com/fastapi/fastapi/pull/14744) by [@YuriiMotov](https://github.com/YuriiMotov).
+
 ### Internal
 
 * ✅ Test order for the submitted byte Files. PR [#14828](https://github.com/fastapi/fastapi/pull/14828) by [@valentinDruzhinin](https://github.com/valentinDruzhinin).