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It is a helpful tool for developers as it allows them to continue working/improving on an application while maintaining a production copy.
Users can, for instance, continue to use version 1 of a published application while developers work on an unpublished version 2.
Update App Version
- Copies processes, forms, datalists, userviews and properties of the current version to the new version
- Does NOT affect any existing running process instances
Update Process Version
- Updates only the process design under the current App version
- Updates existing running instances of the processes found under the current App version to the new design
Further reading: Update Existing Running Process Instances to the Newer Process Flow After Process ChangesFurther reading: App Versioning and Publishing