This is an old revision of the document!
As of XTension version 9.4.34 the application is fully supported on OSX Catalina and OSX Big Sur. That being said both operating systems have significant issues in and of themselves. The most reliable OS in recent memory in our testing is Mojave. If you are running at least Mojave and do not need features new to Catalina or Big Sur then I would not recommend updating at this time.
A notarized disk image is available on the current release page that should be used for a Catalina or newer installation.
There is additionally a version of XTdb fully notarized and ready for Catalina and newer available on that download page.
There are some legacy plugins that will not be brought forward to the newer OS versions however. If you are relying on one of these please consider updating to newer interface devices or contact me to see whats possible about supporting these:
Those plugins will no longer be included in the builds for earlier OS’s either but can be downloaded separately and installed via the “Install Plugin…” menu item from the Database menu in XTension. They can be downloaded from: https://machomeautomation.com/files/xtension/legacy_plugins.zip