Too bad. I started out with the "Business Purchase" for my four computers (gave the extras to my nephews), and was Shocked to see how little the upgrade is from version 12 to 13!!! Plus, the is no compatibility for Big Sur for the ver. 12 users! That is just really bad business. There is a fine line between being entrepreneurial, and just being greedy. I've been loyal to these guys for several versions (waiting for some kind of a "format, or partition" tool), but now that I see this underhanded way to get people to upgrade to ver. 13 (by not supporting ver. 12 with Big Sur), I'm out. I've told my nephews NOT to buy the new version, nor support companies that do this. Companies should be loyal to their base. This is one of only 3 reviews I've done in my life.