diff --git a/docs/releases.md b/docs/releases.md
index 99544d38..cc016a74 100644
--- a/docs/releases.md
+++ b/docs/releases.md
@@ -1669,6 +1669,7 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 
 **Bug fixes + maintenance:**
 
+* Refactor: Use `slices.Contains` from Go 1.21 stdlib to simplify code ([#1406](https://github.com/binwiederhier/ntfy/pull/1406), thanks to [@tanhuaan](https://github.com/tanhuaan))
 * Web: Fix Markdown message line height to match plain text (1.5 instead of 1.2) ([#1139](https://github.com/binwiederhier/ntfy/issues/1139), thanks to [@etfz](https://github.com/etfz))
 * Web: Use full URL in curl example on empty topic pages ([#1435](https://github.com/binwiederhier/ntfy/issues/1435), [#1535](https://github.com/binwiederhier/ntfy/pull/1535), thanks to [@elmatadoor](https://github.com/elmatadoor) for reporting and [@jjasghar](https://github.com/jjasghar) for the PR)
 * Web: Add validation feedback for service URL when adding user ([#1566](https://github.com/binwiederhier/ntfy/issues/1566), thanks to [@jermanuts](https://github.com/jermanuts))