GoZ with ZBrush 4 and ZBrush 4R2

From ZBrush Info

ZBrush 4 and ZBrush 4R2/R2b can be used together with GoZ as the main program components remain the same, but it’s not possible to work on the same project between ZBrush 4 and ZBrush 4 R2 at the same time. It’s only possible to take files from ZBrush 4 into ZBrush 4R2; the opposite is not possible as ZBrush 4 can’t open ZBrush 4R2 files.

If you start a project with ZBrush 4R2/4R2b or if you open a ZBrush 4 file in R2/R2b and then save it, you will not be able to open the file in ZBrush 4 by any method – not even through GoZ.

Important Note about GoZ for ZBrush 3.2 on Macintosh

ZBrush 3.2 introduced GoZ, which is a bridge between ZBrush and other 3D software. For temporary operations and configuration file, GoZ is using a folder which is named Pixologic, and located in your public folder. This folder is renamed and its contents remain intact, while the ZBrush 4R2 installer will copy a fresh one at the same location. If you have ZTL files located in this folder, they won’t be deleted.

Also, it is impossible to use GoZ on ZBrush 4.0 or ZBrush 4R2 and 3.2 at the same time as all the configuration files in the target applications will be changed.