The Core Duo is not the same processor as the Core 2 Duo. Core 2 Duo systems can be upgraded to Yosemite. Core Duo systems cannot be upgraded to anything later than Snow Leopard.
The current period is actually quite unusual for Apple. Usually every new release of Mac OS makes some systems drop out of OS support. But the minimum system requirements have been constant (other than the amount of required free disk space) have been constant from Lion through Yosemite. That's unlikely to last much longer; my prediction is that the next version of Mac OS X will drop support of Core 2 processors, and systems with the Core i3/5/7 series will be the oldest supported Macs. On Fri, Apr 17, 2015 at 8:58 PM, Robert Krawitz <[email protected]> wrote: > On Fri, 17 Apr 2015 18:39:56 -0400, > =?UTF-8?B?U2hpcmxleSBNw6FycXVleiBEw7psY2V5?= wrote: >> The only consolation is that Apple doesn't appear to have obsoleted >> any hardware in any version of Mac OS X since Lion. So it should be >> possible to upgrade any system running Lion, Mountain Lion, or >> Mavericks to Yosemite, aside from the possibility of running out of >> disk space. The upgrade may break some applications, however. >> >> Lion does not support systems with a Core Solo or Core Duo processor. >> Those systems can't be upgraded past Snow Leopard. > > I believe that some Core 2 Duo Macs can be upgraded (mid-2007 and > beyond, aka MacBookPro3,1 and higher). > -- > Robert Krawitz <[email protected]> > > *** MIT Engineers A Proud Tradition http://mitathletics.com *** > Member of the League for Programming Freedom -- http://ProgFree.org > Project lead for Gutenprint -- http://gimp-print.sourceforge.net > > "Linux doesn't dictate how I work, I dictate how Linux works." > --Eric Crampton _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
