I am running Unity on Mac and since i updated to Unity 4 onwards it crashes almost every couple of hours, sometimes you can’t even open a project, sometimes it crashes on play, sometimes it crashes building to IOS, sometimes it crashes switching platforms . My unity crash logs must be taking up loads of disk space 
Unity 3.5 was amazing and crashed probably once in 12 months!
:neutral:
I had these random crashes for a while, but after 4.1+ never happens to me anymore.
i experienced similar crashing behaviour with 4.x, so i decided to stick with 3.5.7 for a bit more
I can’t say it crashes any more than 3.5 on my Mac. (Which is to say, pretty much never.)
–Eric
Seems like more hangs, crashes… +4.x
on one pc “adb.exe” hangs unity almost every time on exit…(have to kill it, then unity closes too…)