Upgrade to 6.1.6
I've read a few threads about users having bad experiences when upgrading to 6.1.6 with ongoing problems when going back to a previous version (like this one : https://cycling74.com/forums/instant-crash-with-max-6-1-6/ for example). I now work on a dec 2012 MBP running OSX 10.8.5 with Max 6.1.4 (both as app and within M4L) and Live 9.1.1. Mind writing about positive upgrades with mac 10.8 or 10.9 ?
I currently use all of the latest software with no problems at all...
OS X 10.9.1
32-bit Max 6.1.6
Live 9.1.1 w/latest M4L
MBP core i7
A friend is using the beta 6.1.7 on a similar system with no problems either.
I have occasionally used the 64-bit version of Max with only 64-bit related problems (PNG decoding, 3rd party externals, some jitter stuff). Otherwise, it's great.
Overall, I am very please with the current set up.