I already know a Tascam audio interface won't be supported in El Capitan, at least no drivers beyond Mavericks have appeared and they don't list it as compatibl

I already know a Tascam audio interface won't be supported in El Capitan, at least no drivers beyond Mavericks have appeared and they don't list it as compatible. So I can never upgrade unless I'm willing to spend several hundred dollars for a new audio interface. Doesn't seem worth it.