diff --git a/CHANGES b/CHANGES
index 7c28a771..31162bbf 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,8 @@
+2.4
+    * Update `dune` support to `2.8`, add auto-generated `opam` files.
+    * Add internal APIs to allow shared private APIs between the main module and the ppx rewriter
+    * Optimize generated code, thanks to @bobzhang 
+
 2.3
     * Switch to ppxlib