haven't read thru the full thread, but I didn't see anything in the first post about it. Sorry if I'm repeating info ...
On Novations website they have a page were all their hardware is listed.http://us.novationmusic.com/answerbase/ ... el-capitan
Mysteriously the ultranova won't work,, butt the mininova will. Odd, because I thought that they were pretty similar. I shot an email off to them for a clarification. the ultranova works as a controller/interface/hardware synth all in one .... but I don't use the interface.
This is what they emailed back to me:
We've found that upon playing back any audio recorded via the UltraNovas built in sound card over USB, there will be audible distortion and glitchy audio.
We are currently investigating what we can do to resolve this and are working with Apple to come to a solution.
If you have an important project coming up and currently have a working setup, we wouldn't recommend updating to El Capitan if you need to use your UltraNova.
On the link I posted above it does say that "Automap" does work with El Capitan. I suppose that probably means that all the controller functions should work fine. I would guess that the ultranova AU also works, but I'm going to write and double check.