安裝與升級 > Upgrade Guide﹝升級指南﹞ > Before Upgrading > Supported Upgrade Paths
  
Supported Upgrade Paths
For information on supported upgrade paths, refer to the Windchill Supported Upgrade Paths document available from the PTC Reference Documents site. From the drop-down menus, select the following:
Product: <Your Windchill product>
Release: <Your Target release>
Document Type: Upgrade Guide