Frequently asked questions
How can projects created in older versions of Unity Pro be opened and modified by a newer version? How can the project be saved so that it can still be opened with the old version of Unity Pro?
FAQ000233729
05 March 2025
Open with "keep project version" selected.Modify program, but do not use function blocks only available in the new libset, or new DTMs. Keep libset version the same as original.
Save project as an archive (.sta).