According to TUAW, these are the Macs that OS X Mountain Lion will run on:
- iMac (mid 2007 or later)
- MacBook (13-inch Aluminum, 2008), (13-inch, Early 2009 or later)
- MacBook Pro (13-inch, Mid-2009 or later), (15-inch, 2.4/2.2 GHz), (17-inch, Late 2007 or later)
- MacBook Air (Late 2008 or later)
- Mac Mini (Early 2009 or later)
- Mac Pro (Early 2008 or later)
- Xserve (Early 2009)
The models listed below are supported under OS X Lion, but unfortunately will not be able to run OS X Mountain Lion. The model identifiers are listed in parentheses, which you can check by going to About this Mac > More Info > System Report:
- Late 2006 iMacs (iMac5,1, iMac5,2, iMac6,1)
- All plastic MacBooks that pre-date the aluminum unibody redesign (MacBook2,1, MacBook3,1, MacBook4,1)
- MacBook Pros released prior to June 2007 (MacBookPro2,1, MacBookPro2,2)
- The original MacBook Air (MacBookAir1,1)
- The Mid-2007 Mac mini (Macmini2,1)
- The original Mac Pro and its 8-core 2007 refresh (MacPro1,1, MacPro2,1)
- Late 2006 and Early 2008 Xserves (Xserve1,1, Xserve2,1)
So is your Mac one of the lucky ones that will be able to run OS X Mountain Lion, or is OS X Lion good enough for you to last you the next couple of years?