diff --git a/zkdoc/release-note b/zkdoc/release-note
index 5dcdf2639cf..cc85ec168d0 100644
--- a/zkdoc/release-note
+++ b/zkdoc/release-note
@@ -2,6 +2,7 @@ ZK 10.0.0
 * Features
 
 * Bugs
+  ZK-5575: forEach causes an unexpected ClassCastException
 
 * Upgrade Notes