For information on supported upgrade paths, refer to the Windchill Supported Upgrade Paths document available from the PTC Reference Documents site. Before starting the upgrade process, refer Release Advisor (Browse to https://www.ptc.com/en/support/ > Release Advisor). From the drop-down menus, select the following:

Product: <Your Windchill product>

Release: <Your Target release>

Document Type: Upgrade Guide