diff --git a/CHANGELOG-2.1.md b/CHANGELOG-2.1.md
index 41692b129d..c4d677ba65 100644
--- a/CHANGELOG-2.1.md
+++ b/CHANGELOG-2.1.md
@@ -77,6 +77,7 @@ To get the diff between two versions, go to https://github.com/symfony/symfony/c
 
 ### Form
 
+ * added support for validation groups as callbacks
  * made the translation catalogue configurable via the "translation_domain" option
  * added Form::getErrorsAsString() to help debugging forms
  * allowed setting different options for RepeatedType fields (like the label)