Hi everyone. Here is a resource for Mac-based Media Composer users (and some Windows users too):
http://www.alwaysediting.com/avid-mc-versions.html
By moderating, I've been compiling data on correct version environments for years from all the various readme files. It's a thumbnail-view of the Avid Version Matrix, but with the added feature of listing all of the MC versions qualified for each OS point release. Essentially when I'm in a crunch for time, it's the cheat sheet I've been using to moderate users here and on the Avid Editors of Facebook.
Yes it's a bit clunky (it's just a hobby) and corny being on my own website. My hope is to eventually take it off my own website and turn it into an AvidBlog which is updated continuously.
But in the meantime, if any of you are needing immediate info on versions of MC (current and past) as well as what point-releases of the Mac OS they run on, then I hope this helps.
Let me know any tweaks you'd like to see as well. My goal is to build a page for every point release of MC since 5.5, including known bugs and workflow issues.
But every time I sit down to do so, the darned edit phone rings ;)