diff --git a/components/engine/CHANGELOG.md b/components/engine/CHANGELOG.md
index 060a07c21e..5fb81b4207 100644
--- a/components/engine/CHANGELOG.md
+++ b/components/engine/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+#### Builder
+
+- ADD now uses image cache, based on sha256 of added content.
+
 ## 0.7.2 (2013-12-16)
 
 #### Runtime