diff --git a/NEWS.md b/NEWS.md
index f38d16090c..0524e530db 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -86,6 +86,11 @@ Note: We're only listing outstanding class updates.
       associated with the AST node. [[Feature #20624]]
     * Add RubyVM::AbstractSyntaxTree::Location class which holds location information. [[Feature #20624]]
 
+* Warning
+
+    * Add Warning.categories method which returns a list of possible warning categories.
+      [[Feature #20293]]
+
 ## Stdlib updates
 
 * Tempfile
@@ -280,6 +285,7 @@ details of the default gems or bundled gems.
 [Feature #20205]: https://bugs.ruby-lang.org/issues/20205
 [Bug #20218]:     https://bugs.ruby-lang.org/issues/20218
 [Feature #20265]: https://bugs.ruby-lang.org/issues/20265
+[Feature #20293]: https://bugs.ruby-lang.org/issues/20293
 [Feature #20429]: https://bugs.ruby-lang.org/issues/20429
 [Bug #20433]:     https://bugs.ruby-lang.org/issues/20433
 [Feature #20443]: https://bugs.ruby-lang.org/issues/20443