The RV 2021.0.0 release has Python 3 support, and is the first release to NOT support Shotgun Review. The Import Cut, Cut Support, and Python Console features have already been moved to other parts of the Shotgun ecosystem and are now available without requiring the Shotgun Review package. We’ve also tackled a large number of bugs and issues in order to improve the overall RV experience.
For more information about the release, check out our release notes. For any issues, please reach out to support@shotgunsoftware.com.