diff --git a/docs/en/docs/release-notes.md b/docs/en/docs/release-notes.md
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--- a/docs/en/docs/release-notes.md
+++ b/docs/en/docs/release-notes.md
@@ -2,6 +2,7 @@
 
 ## Latest changes
 
+* Optimize internal regex performance in `get_path_param_names()`. PR [#1243](https://github.com/tiangolo/fastapi/pull/1243) by [@heckad](https://github.com/heckad).
 * Remove `*,` from functions in docs where it's not needed. PR [#1239](https://github.com/tiangolo/fastapi/pull/1239) by [@pankaj-giri](https://github.com/pankaj-giri).
 * Start translations for Italian. PR [#1557](https://github.com/tiangolo/fastapi/pull/1557) by [@csr](https://github.com/csr).