I use PC, but some details cross platforms. The use of any new DAZ figures (genesis) in carrara requires that the daz studio library runtime be intact. As a non-DS user (with my own runtime arrangement) this blew my setup out of the water. If you can run daz studio on your mac, then odds are that C8.5 will run also. Notice I said "odds", not "certainty".

If not working with genesis, I did not see any problems with C8.5