diff --git a/NEWS b/NEWS
index be22fe5ee7..30e529177b 100644
--- a/NEWS
+++ b/NEWS
@@ -430,6 +430,8 @@ with all sufficient information, see the ChangeLog file.
 
   * Default source encoding is changed to UTF-8. (was US-ASCII)
 
+  * No warning for unused variables starting with '_'
+
 === Compatibility issues (excluding feature bug fixes)
 
   * Array#values_at