I’m a little uncertain whether i get an automatic email or whether i have to send a ticket. I bought 3.5 in januari but played around with the demo version in the days between the order and actually getting 3.5. I also registered to support on the day zbrush 4 was going to go out to people so that might make my above question moot.
My guess is i won’t get an automatic upgrade email but just want to be certain.