diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62a313392..d237f47fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Several new sections to 'best practices' document.
 - Added the ability to define Item properties under Assets (item-spec/item-spec.md)
 - Add `proj:shape` and `proj:transform` to the projections extension.
+- Collection-level assets extension
 
 ### Changed
 - Moved item recommendations to best practices, and added a bit more in item spec about 'search'