Update schema-csdef-workerrole.md

Author: hirenshah1

articles/cloud-services-extended-support/schema-csdef-workerrole.md

@@ -12,6 +12,9 @@ ms.reviewer: mimckitt
 
 # Azure Cloud Services (extended-support) definition WorkerRole schema
 
+> [!IMPORTANT]
+> As of March 31, 2025, cloud Services (classic) is deprecated and will be fully retired on March 31, 2027. [Learn more](https://aka.ms/csesretirement) about this deprecation and [how to migrate](https://aka.ms/cses-retirement-march-2025).
+
 The Azure worker role is a role that is useful for generalized development, and may perform background processing for a web role.
 
 The default extension for the service definition file is csdef.