Apple is only supporting Mac OS X 10.9 – 10.11. Apple stopped providing security updates for Mac OS 10.8 and earlier versions with the release of Mac OS X 10.11 (El Capitan) in 2015.
Using a version of Mac OS that is no longer supported puts the security of your computer, your computer accounts, and the information stored on your computer at risk. Additionally, if your OS version is 10.8 or earlier then you will be unable to run the current version of the Cisco AnyConnect VPN software that allows you to access restricted University business systems securely.
Follow these steps to find out what version of OS X you have installed on your product.
If your computer is running an outdated operating system, upgrade to a supported version of Mac OS X. If you have selected automatic update for your device, your device will alert you when updates are available. These update notices can either be found in the App Store, the Apple Menu, or a pop-up alert.
Certain Apple computers are unable to update to supported versions of Mac OS X. You can determine whether or not your computer can be upgraded to a supported version of Mac OS X by running Mactracker on your device. Mactracker is available at the App Store or at www.mactracker.ca.
If you require assistance updating Mac OS X or have determined that your computer cannot be upgraded to a supported version of Mac OS X, contact your departmental IT Professional or the IT Support Center for assistance. If you need to continue using a computer that runs a version of Mac OS X that Apple no longer supports, you should put it on a private (10.2) network. By placing your computer on a private network, you are increasing the security of the computer since security updates are no longer provided to you.