From Tamron:
SP 15-30mm F/2.8 Di VC USD for Canon
- New firmware version makes the model compatible with Canon "EOS R/RP" and Canon "Mount Adapter EF-EOS R" for general operations
For details about the service, please contact your nearest Tamron dealer.
SP 85mm F/1.8 Di VC USD, 70-210mm F/4 Di VC USD, 100-400mm F/4.5-6.3 Di VC USD for Nikon
- Enables general operations on Nikon Z7/Z6 with FTZ by the firmware updating. [NOTE] Nikon FTZ mount adapter is required to attach the lens to Nikon Z7/Z6.
A separately sold TAP-in Console is needed for the update.