Load older OS?

[tomegun]

Is it possible to load OSX 10.8 on a new Mac Pro when it comes out? At work there may be a compatibility issue with OSX 10.9 and Safari 7.

The initial answer I got from IT...

 

[maflynn]

No 10.8 will not work on the nMP when it comes out. Apple will not be releasing an update or patch to allow the new Mac Pro to use the legacy OS.