Carnegie Mellon University Website Home Page

Mac OS X 10.7 (Lion) Retirement

With the availability and support of Mac OS X 10.9 (Mavericks), Computing Services has discontinued support of Mac OS X 10.7 (Lion). Those who are running OS X 10.7 are encouraged to upgrade.

Because Apple has made OS X 10.9 (Mavericks) free to download from the Mac App Store, Computing Services does not provide a separate download. To upgrade to Mavericks, see DSP customers, please contact DSP before upgrading.

See our OS X support statement for details.

Please direct any questions or comments to the Computing Services Help Center (412-268-HELP or