diff --git a/CHANGES.md b/CHANGES.md
index a274d411129..5486f90d16f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -25,6 +25,7 @@ Apollo 2.1.0
 * [fix(#4483):Fixed overwrite JSON type configuration being empty](https://github.com/apolloconfig/apollo/pull/4486)
 * [Allow users to delete AppNamespace](https://github.com/apolloconfig/apollo/pull/4499)
 * [fix the deleted at timestamp issue](https://github.com/apolloconfig/apollo/pull/4493)
+* [add configuration processor for portal developers](https://github.com/apolloconfig/apollo/pull/4521)
 
 ------------------
 All issues and pull requests are [here](https://github.com/apolloconfig/apollo/milestone/11?closed=1)