Apple - deprecating hardware compatibility since 2002
Apple products really should come with a warning sticker attached stating.
"Important note: future OS updates may (and most definitely will) brake compatibility and cause other issues with 3rd party software and hardware"
One can not be wondering what January 2020 will bring along, as the hardened runtime™ will be applied fully, for now its on a grace period. Not to mention the deprecation on OpenGL api, it may be the very next OS update that will brake all the 'again working' plugins for you. Little bit like the sudden death of HAL api, which was working on the still on the final public beta of Catalina but killed (for some reason) in the "final" release of the OS. The very reason why your Virus integration is dead now, and so is Elektron Overbridge. Apple did not exactly mention that the HAL api will be killed. They just killed it.
"Apple updates are lot like a box of chocolates, youll never know what you gonna get" - Forest Gump