diff --git a/NEWS b/NEWS
index 67873ea306..76e93bd4d4 100644
--- a/NEWS
+++ b/NEWS
@@ -30,6 +30,11 @@ Enumerable::
 
    * Added Enumerable#tally.  [Feature #11076]
 
+Regexp/String::
+
+    * Update Unicode version and Emoji version from 11.0.0 to 12.0.0.
+      [Feature #15321]
+
 === Stdlib updates (outstanding ones only)
 
 CSV::