After you create your upgrade script, you can test it by clicking Upgrade Supporting Objects on Tasks list on the Supporting Object page.
End users can also use this feature to upgrade an existing custom packaged application.
To upgrade a custom packaged application:
Import a new version of application to be upgraded (if applicable). See "Importing an Application, Page or Component Export".
On the Workspace home page, click the Application Builder icon.
Select the application.
Click Supporting Objects.
The Supporting Objects page appears.
From the Tasks list, click Upgrade Supporting Objects.
Follow the on-screen instructions.