***EDIT: Nevermind. I did some more digging and figured out what I’m supposed to do. Admin, feel free to delete this thread.
Hello,
I took a break from modelling for a while to work on non-digital projects after my 3D printer broke. Just ordered a new printer, and I’m ready to dive back in and am super excited about the 2018 version of Zbrush!
Only problem is I don’t know how to upgrade to it. I’m still on Zbrush 4R6. I have it set to auto update, but it hasn’t. I clicked, “Check for updates”, and it responds with a message saying their are no new updates. 
Please tell me how to upgrade to the 2018 version.
Thanks!