Apple, News

Mountain Lion Drops Support For Older 64-Bit Macs

The golden master build of Mountain Lion beta was recently seeded to developers. Now that we’re nearing close to a public release, it’s a good time to remind everyone exactly which Macs are supported by the newest version of OS X. Mountain Lion drops support for some older model 64-bit Macs…

The public release of Mountain Lion is happening in about a week. Here’s a list of supported Macs from Apple’s website.

Your Mac must be one of the following models:

– 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)

Now you may be wondering, why are some 64-bit Macs not supported by Mountain Lion? Ars Technica sheds some light on a possible reason for this.

Apple declined to tell us the reasoning behind leaving some of these models out of potential Mountain Lion upgrades, but we suspected it was related to an updated graphics architecture that was designed to improve OS X’s graphics subsystem going forward. Our own Andrew Cunningham suspected the issue was related to graphics drivers, since the GPUs not supported under Mountain Lion had drivers that were written before 64-bit support was common.

Information included with the first Mountain Lion GM now corroborates the connection to 32-bit graphics drivers as the culprit. While Mountain Lion is compatible with any Mac capable of running a 64-bit kernel, the kernel no longer supports loading 32-bit kernel extensions (KEXTs).

Either way these requirements for Mountain Lion will cover the majority of Mac users. Mountain Lion will be available in “late July” for $19.99 on the Mac App Store.

Is your Mac supported?

Source: MacRumors

Share this Story

Related Posts


  1. GVK Biosciences

    January 19, 2018 at 7:17 am

    892592 627168This internet internet site is my breathing in, really wonderful pattern and perfect content . 994233



    February 3, 2018 at 6:29 am

    729277 782722Hello there, just became alert to your blog by way of Google, and located that it is actually informative. Im gonna watch out for brussels. Ill be grateful in case you continue this in future. A lot of folks will probably be benefited from your writing. Cheers! 944069


  3. houzz ppc

    February 7, 2018 at 2:19 pm

    861711 70116Read More HERE. I bookmarked it. 154858


  4. Free UK Chat

    February 12, 2018 at 11:36 am

    701333 833887You need to indulge in a contest for among the greatest blogs more than the internet. Ill suggest this internet site! 962768


  5. facebook guaranteed gurus

    February 16, 2018 at 3:29 am

    427541 447265Its perfect time to make some plans for the future and its time to be happy. Ive read this post and if I could I wish to suggest you some intriguing things or suggestions. Possibly you could write next articles referring to this write-up. I want to read even much more things about it! 51259


  6. Innovation Tree

    February 24, 2018 at 9:10 am

    358194 872440Hello. outstanding job. I did not anticipate this. This is a splendid articles. Thanks! 50927


  7. !2ke

    February 26, 2018 at 5:21 pm

    193981 982661I notice there is definitely lots of spam on this weblog. Do you need to have support cleaning them up? I might support between courses! 884785


  8. claw

    March 19, 2018 at 3:54 am

    496517 564515I real pleased to locate this website on bing, just what I was looking for : D too saved to bookmarks . 344398



    April 3, 2018 at 2:08 am

    989945 632826Maintain websiteing stuff like this I actually am fond of it 94764


  10. carpet cleaning service hatfield

    April 8, 2018 at 10:14 am

    680638 405025Can you give me some suggestions for piece of software writing? 627587


  11. free music downloads

    April 13, 2018 at 8:08 pm

    I enjoy you because of each of your work on this web page. Ellie take interest in conducting internet research and it is easy to understand why. Many of us notice all concerning the powerful way you make reliable information through the web site and in addition recommend participation from other people on this concern plus my daughter is actually studying a whole lot. Take pleasure in the rest of the year. You’re carrying out a pretty cool job.


  12. 45

    April 16, 2018 at 9:18 pm

    768512 153950The digital cigarette makes use of a battery and a small heating element the vaporize the e-liquid. This vapor can then be inhaled and exhaled 790200


Leave a Reply

Your email address will not be published. Required fields are marked *

Join Our Mailing List

Email Format

Free iTunes Gift Cards!

Find us on Google Plus