My 2013 retina mbpro couldn't run Linux successfully including Ubuntu. It's somewhat supported. Except for the trackpad (which you can sort of get working, just not well), dual graphics switching (and therefore decent battery life), crap external monitor support, and the random crashes. After this last one, I just gave up and I realized I was blaming Linux when in reality it was my fault for using unsupported hardware and trying to run Linux on it. Hadn't had such an unreliable system since the old windows days and that's after days and days of setting it up, trying different distros, etc.