diff --git a/CHANGES.txt b/CHANGES.txt
index d8c2ee99a3e4..69207d6ae9df 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,12 @@
+2021-10-04 version 3.18.1 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
+
+  Python
+  * Update setup.py to reflect that we now require at least Python 3.5 (#8989)
+  * Performance fix for DynamicMessage: force GetRaw() to be inlined (#9023)
+
+  Ruby
+  * Update ruby_generator.cc to allow proto2 imports in proto3 (#9003)
+
 2021-09-13 version 3.18.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
 
   C++