23.05.18 Category: Press Release

32-Bit-Apps under macOS

32-bit app compatibility with macOS High Sierra 10.13.4

With the latest macOS version 10.13.4 Apple has started to discontinue 32-bit apps under macOS:

"Starting with macOS High Sierra 10.13.4, apps that have not been updated to use 64-bit processors will display a one-time warning message when opened."

Does this also apply to QuarkXPress?
There's nothing to worry about when using QuarkXPress 2015, 2016, 2017, and 2018; all are 64-bit compatible applications. If you are using QuarkXPress 7, 8, 9, or 10, please remember that these versions may not run on future versions of macOS!

Here you will find more information from Apple...

---