diff --git a/CHANGELOG.md b/CHANGELOG.md
index 850d949353738124740e4bc21bccdc741515bb9a..4e35800f15bb9f7055c437c26070ce880ab3b3fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Under development (0.4.2)
     (option dump-simple)
   * Added option to dump all bindings instead of just local ones
     (dump-all-bindings)
+  * Introduced annotated FlatCurry as a new output format
+    (annotated-flat)
 
 Version 0.4.1
 =============