Patch 1.6.2 for The Witcher: Enhanced Edition for Macs combines the improvements of the patch 1.6.1 with the latest version of the compatibility layer software fully compatible with OS X Lion 10.7.5 and Mountain Lion 10.8.2. PLEASE NOTE! Patch 1.6.2 can only be used on Macs. Also, don't use 1.6.2 files downloaded from the website with the Steam version of the game.
The compatibility layer software is upgraded to the latest version. In effect, the game can now be successfully launched on OS X Lion 10.7.5 and OS X Mountain Lion 10.8.2.