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OS X Mountain Lion Drops Support For Older 64-Bit Models

Apple‘s OS X Mountain Lion will be dropping support for some of its older models, and even for its older 64-bit models. No comment so far on why it’s doing this, but head on below to see which Mac models won’t play kindly with Mountain Lion to make sure yours isn’t one of them.

Here’s a list of machines supported by Mountain Lion, seen on its update page:

  • iMac (Mid 2007 or newer)
  • MacBook (Late 2008 Aluminum, or Early 2009 or newer)
  • MacBook Pro (Mid/Late 2007 or newer)
  • MacBook Air (Late 2008 or newer)
  • Mac mini (Early 2009 or newer)
  • Mac Pro (Early 2008 or newer)
  • Xserve (Early 2009)

And here are the 64-bit models that will not be supported:

  • iMac (Late 2006)
  • MacBook (Late 2006 – Late 2008)
  • MacBook Pro (Late 2006)
  • MacBook Air (Early 2008)
  • Mac mini (Mid 2007)
  • Mac Pro (Early 2006)
  • Xserve (Mid 2006 – Early 2008)

Apple has yet to comment on why it is leaving these models behind, but Ars Technica speculates it has something to do with an updated graphics architecture: “Our own Andrew Cunningham suspects the issue is more specifically related to graphics drivers, since the GPUs not supported under Mountain Lion have drivers that were written before 64-bit support was common.”

So if you really need to move to OS X Mountain Lion, I suppose all you can do is get a newer Mac. Like everyone does anyway.

(via Ars Technica)

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