About VPS+
A new soft-proofing solution called VPS+ has been released with Prinergy 9.0. The release of VPS+ represents the first step in the development of a comprehensive new soft-proofing solution for Prinergy workflow.
...
VPS+ is only automatically installed by the Workshop installer on Macintosh OS 10.15 and above. The installer for Windows and legacy macOS clients will continue to install VPS Classic by default.
VPS+ Limitations
The most significant feature missing from VPS+ is the ability to view backed-up front and back surfaces of an imposition.
...