Установка и обновление > Upgrade Guide (Руководство по обновлению) (на английском языке) > Before Upgrading > Supported Scenarios > Upgrading to Critical Patch Set (CPS) Releases
  
Upgrading to Critical Patch Set (CPS) Releases
Critical Patch Set releases are supported as Windchill upgrade targets. Critical Patch Sets may include upgrade-related fixes, so PTC recommends that upgrade target systems be updated to the latest applicable CPS before upgrade.