So i've been putting it off due to im buying a new rMBP and well I just don't want to go through the hassle of backing everything to update to OS. I know OSX is the newest OS but my concern is how well will it work with a mid 2010 17" i7 MBP and my main audio software (Ableton, Serato, Traktor)? Or should I upgrade to one of the other not so new OS? I know it's a pretty vague question but I am paranoid and I need my laptop and software working properly in order to do my job. Thanks for the help on my dumb question!