diff --git a/CHANGES.md b/CHANGES.md
index 460ea4f0b5..39b583cf05 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,8 @@ merlin 4.9
 ==========
 unreleased
 
+  + merlin binary
+    - Allow monadic IO in dot protocol (#1581)
   + test suite
     - Add missing dependency to a test using ppxlib (#1583)