Official Statement for Windows 8 and Quark Products
(applies to QuarkXPress, QuarkXPress Server, QuarkCopyDesk and Quark Publishing Platform)
Please note that Quark Products are not yet officially certified for Windows 8. This means we do not recommend its use and cannot guarantee its compatibility. Of course we have performed basic testing on Windows 8 and don't see any major issues.
That said, and now that the final release version of Windows 8 is available, we have begun our final certification and expect that to be done for the next maintenance release of our products.
Thanks
Matthias