So, like many people I upgraded to El Capitan earlier this week and until today didn't had the chance to test it with Ableton or Logic.
Apart from NI woes with El Cap, my Zero8, while recognized by OSX, won't output any sound from the computer now. This sucks. Stay away from El Capitan until all issues are resolved!
Update: Tried several OSX tweaking, and it still didn't work. I did a factory reset on the Zero8, restarted the computer and now everything works fine!
Beware! Zero8 not working after El Capitan update
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