The only download I see is 4R7… is there a later update or a hotfix version? I need to refresh my downloads, and don’t want to do it over a weekend if there actually isn’t any update.
Are you on P3 (patch 3)?
I checked my old pc, and found the 4r7 ps installer… I thought that’s what I installed on my new surface 4 pro, but apparently not. It reports its on the latest version now, so I’m good again.
…until the next update! 
Just a heads up, but it’s best if you uninstalled your current 4R7, delete the folder, and then install the P3 installer, instead of using the auto-updater. It’s the recommended method: http://www.zbrushcentral.com/showthread.php?192994-ZBrush-4R7-P3-is-Now-Available
Yep, I didn’t want anything to get mucked up.