DES-7079 Prepared release notes for MxOK 2.23.1.

Author: zlogic

content/en/docs/releasenotes/deployment/mendix-for-private-cloud.md

@@ -12,6 +12,14 @@ For information on the current status of deployment to Mendix on Kubernetes and
 
 ## 2025
 
+### September 17
+
+#### Mendix Operator v2.23.1 {#2.23.1}
+
+* We've updated storage provisioners that create Azure Workload identitites - to correctly detect and handle _Cannot validate Microsoft Entra ID user ... because the OID isn't found in the tenant_ errors.
+  * After creating a new workload identity, it might take some time before the workload identity (user) becomes fully functional; this error is not an issue (just a temporary status) and in this situation the Mendix Operator can just retry after waiting for some time.
+  * Azure changed the error text and older Operator versions might not correct this error.
+
 ### September 4, 2025
 
 #### Portal Improvements