March 7, 2024
How to upgrade or update your Device
Detailed instructions on how to update your Mac computer can be found on Apple's support website:
Apple Support: Update macOS on Mac
Backup Your Data
Although not a requirement, it is recommended you backup your data prior to upgrading the Operating System. Your Mac's OS includes a built-in backup feature called Time Machine. More information can be found about Time Machine how to use it on Apple's support website here.
Update Your Software Applications
Whenever you update or upgrade your MacOS, it is recommended to check for updates for other software you use regularly. Apps such as Microsoft Office, Cisco VPN, and Citrix Workspace usually check for updates on their own, but other apps such as Cisco Jabber must be manually updated. The PEAS Self Service application in your Applications folder has the current versions of these Enterprise software available for download. If your Mac is not yet enrolled in PEAS and does not have Self Service you can follow the steps found here to enroll it.
Supported versions of macOS
In accordance with Mass General Brigham policy, end users are expected to keep their Macs current with the latest OS version and application software updates available for their computer.
The below table lists the minimum Mac hardware that is compatible with a given version of macOS. You can find out the type of Mac and OS you are running by clicking on the Apple Menu ( ) in the top left of your screen and selecting About This Mac.
Finding older Mac OS installers
If your Mac is compatible with a Supported OS but Software Update can not find it:
- Open Safari (no other browser will work with these links)
- Go to https://support.apple.com/en-us/HT211683
- Choose a version of macOS that is compatible with your Mac, provided it is Supported (see table)