Extension Pack 5 Versions are not compatible with Mari 5.
Mari 5.0v1 runs with a different Python Version, that Extension Pack does not support.
Mari 4.8v1 is feature identical to Mari 5.0v1 with the same Python Version as previous Mari 4.x Versions, so can
be considered 'Mari 5.0 py2' .
- Mari Extension Pack 5 fully supports Mari 4.8.
- Mari Extension Pack 5 does not support Mari 5.0.