Don’t upgrade!!!
I can’t even work now - 10.2.1 is crashing every 5 minutes. There are new bugs that I’ve never seen before that are making the program inoperable. I turned a few Slit tracks into Interleaved, and now the session won’t stay open for more than 5 minutes. I can’t move the playback head, when I want to go to bar 33, Logic plays form bar 14, every time I open it there are a new set of bugs.
Xacca about Logic Pro