diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e44f3a6..534d6913 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ v4.0
 ----
 
 * Unified parser and generator API (issue #23)
+* Updated library layout, now requires Arduino 1.0.6 or newer
 
 **BREAKING CHANGE**: API changed significantly, see `doc/Migrating to the new API.md`.