This is an old revision of the document!
As of this writing Catalina is still in public beta. Nobody should load a public beta, much less this one, onto their house servers. If you have already done so I am supplying a hardened and notarized version of the app for running on Catalina.
As of XTension version 9.4.21 the following plugins are unavailable on Catalina. Do NOT upgrade your server if you require any of these plugins. I am rebuilding these as people let me know which ones they are still using but do not have time frames when they will be available yet.