diff --git a/NEWS b/NEWS
index c2e2a150d0..557c7bad9e 100644
--- a/NEWS
+++ b/NEWS
@@ -92,6 +92,8 @@ with all sufficient information, see the ChangeLog file or Redmine
     instead of raising a TypeError. [Bug #13312]
   * String#delete_prefix is added to remove prefix [Feature #12694]
   * String#delete_prefix! is added to remove prefix destructively [Feature #12694]
+  * String#delete_suffix is added to remove suffix [Feature #13665]
+  * String#delete_suffix! is added to remove suffix destructively [Feature #13665]
 
 * Thread