diff --git a/docs/user-manual/en/versions.md b/docs/user-manual/en/versions.md
index df21205a9c..63e18252b8 100644
--- a/docs/user-manual/en/versions.md
+++ b/docs/user-manual/en/versions.md
@@ -23,6 +23,12 @@ previously only had `createDurableQueue` for their role. They will now need
 `createNonDurableQueue` as well. Again, this only has potential impact for MQTT 3.x
 clients using `CleanSession=1`.
 
+## 2.23.1
+[Full release notes](https://issues.apache.org/jira/secure/ReleaseNote.jspa?version=12351846&projectId=12315920)
+
+Highlights:
+- [ARTEMIS-3856](https://issues.apache.org/jira/browse/ARTEMIS-3856) - Failed to change channel state to ReadyForWriting : java.util.ConcurrentModificationException
+
 ## 2.23.0
 [Full release notes](https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315920&version=12351677).