Client cache upgrade is not supported for the
Windchill Workgroup Manager. Each
Windchill Workgroup Manager user must upload or check in all new or modified objects in all workspaces, shutdown
Windchill Workgroup Manager, and remove the client cache before the
Windchill upgrade. For more information, refer to the following article:
https://www.ptc.com/appserver/cs/view/solution.jsp?n=CS46007