diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f15c960..726e5775 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [1.0.0-alpha] - Unreleased
 ### Added
--
+- Special behaviour for attribute value ``__undefined__`` (invisibility, no shortcuts to be set in AAM)
 
 ### Changed
 -