Good news, both, QuarkXPress 2015 and QuarkXPress 2016 are now supported on macOS Sierra.
QuarkXPress 8, 9 and 10 – run at own risk
Even better, though QuarkXPress 10 is not officially supported on Sierra, it runs fairly well on 10.12.
And also older versions of QuarkXPress, I briefly tried 8 and 9, run with minor issues on macOS Sierra. However if you need to install fresh, that’s not straight forward and we did hear from some users that they experienced larger issues. So it might be a very individual experience.
Just remember, these previous versions of QuarkXPress are not officially supported on Sierra and therefore not tested by Quark on Sierra.
So you run it at your own risk after intensive tests please. If you are looking for information on which operating these versions were certified, please read here: http://forums.quark.com/viewtopic.php?f=56&t=27713
QuarkXPress 2015 – supported with known issues
If you are using QuarkXPress 2015 on Sierra, which is an officially supported combination of QuarkXPress and operating system, then please be aware that this is supported with a few known Sierra specific issues. You can read about the known issues here: http://files.quark.com/download/documentation/QuarkXPress/2015/English/QXP%202015%20July%20Update%20Known%20and%20Resolved%20Issues_en-us.pdf
So before upgrading to macOS Sierra, please read about the known issues on Sierra, decide then whether running QX2015 on Sierra is what you want to do, first create yourself a backdoor, and then upgrade and test.
QuarkXPress 2016 – fully supported
So just 13 days after the initial release of Sierra, Quark supports Apple’s newest operating system.
QuarkXPress 2016 October Update is fully supported on macOS Sierra. You best find it the update through Auto Update or on Quark’s website.
There are no known Sierra specific issues in the October Update of QX2016, the only restriction is that the new tabbed interface of Sierra is disabled in QuarkXPress.
So first create yourself a backdoor (to be able to revert), make sure QuarkXPress 2016 is updated to the October Update, upgrade OS X to Sierra, and test thoroughly whether all other tools that you need are working fine too.
And if you plan to upgrade to QuarkXPress 2016, maybe now is a good time, as there’s an attractive offer available until Oct 31, 2016: