On November 12, 2019, XMLmind sent the following email with links to its FAQ page for what to do to get the XMLmind XML Editor to run on Mac OS X Catalina:


We have added this two FAQs for those who want to run XMLmind Software applications on macOS 10.15 Catalina before we officially support this operating system.

These two new FAQs apply to any XMLmind Software application installed on macOS 10.15 Catalina using its .dmg distribution.

I have successfully downloaded and installed your software using your .dmg distribution but now, I cannot start the application on my Mac running macOS Catalina 10.15. The error dialog box says: “This software needs to be updated. Contact the developer” and that’s what I am doing. Please advise.


I’m not able to open files.