Hey guys… is the update not live yet? I just got the email, saw Aurick’s post from 2 hours ago, but when I run zupgrader, it says there is no update available.
Same here. :-/
That’s OK for me then… No rush to do it till tomorrow.
First, are you running ZUpgrader from within your ZBrush 2018 installation directory? If you are running the one in ZBrush 4R8 or a different version it won’t work. In that case you need to use My Licenses to upgrade to ZBrush 2018, which will automatically give you 2018.1.
Even if you are running the correct ZUpgrader, things can happen that prevent success. In that case, just use My Licenses. There is a download button on that page and it will deliver the stand-alone installer for ZBrush 2018.1. Instead of updating, you would uninstall your current ZBrush 2018 copy, then install the new version. That’s it!
ZUpgrader is a convenience; not a necessity.
Yes, I’m running it from the proper ZBrush 2018 folder, as suggested. It just keeps saying “Update not available”.
I’ve tried running normally, also as administrator, with ZBrush off (as instructed) with ZBrush on, etc. It just doesn’t like me right now, I guess. 
We’ve learned that the earliest installations of ZBrush 2018 are unable to use ZUpgrader. We’re currently investigating for a solution.
In the mean time, simply reinstall using the full installer from My Licenses.
Ok, no worries. Already uninstalled and reinstalled. 
Thanks very much for the prompt replies!