GST 3.21 upgrade guide

Review when migrating to GST 3.21.

Important:

This is an incremental upgrade guide that covers only topics related to the Genero Studio version specified in the page title. Check prior upgrade guides if you migrate from an earlier version. Make sure to also read about the new features for this version.

Corresponding new features page: GST 3.21 new features.

Changes in earlier versions

Make sure to check the upgrade notes of earlier versions, to not miss changes introduced in maintenance releases. For more details, see GST 3.20 upgrade guide.