diff --git a/cpp/CHANGELOG.md b/cpp/CHANGELOG.md
index 03ffe1473195fccc883685f7453148f7b546e11f..966b584694971e8dd3e88ea75e1b232e66c76097 100644
--- a/cpp/CHANGELOG.md
+++ b/cpp/CHANGELOG.md
@@ -11,6 +11,7 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-149 - Fixed searching only one index file issue in distributed mode
 - MS-153 - fix c_str error when connecting to MySQL
 - MS-157 - fix changelog
+- MS-190 - use env variable to switch mem manager and fix cmake
 
 ## Improvement
 - MS-156 - Add unittest for merge result functions