diff --git a/source/releasenotes/compat.rst b/source/releasenotes/compat.rst
index 3972c9d30f..1b64a5fe11 100644
--- a/source/releasenotes/compat.rst
+++ b/source/releasenotes/compat.rst
@@ -36,7 +36,7 @@ CloudStack Management Server.
 Software Requirements
 ~~~~~~~~~~~~~~~~~~~~~
 
--  Java JRE 17
+-  Java JRE 17, 21
 -  MySQL 8.4 (or equivalent compatible DBMS)
 
 Supported Hypervisor Versions