When a major operating system upgrade is released (such as macOS Catalina 10.15 in October), it is generally recommended to wait and install the upgrade after its first minor update is released (in this case, 10.15.1).

General recommendations for installing macOS upgrades: OS X Mavericks to the present version of macOS are named after California locations. Mac OS X Cheetah-OS X Mountain Lion named major operating system releases after large cats. Major operating system upgrades for all future macOS releases are delivered through an installer downloaded from the Mac App Store (prior to OS X Lion, operating system upgrades were delivered through a DVD). Instructions for installing macOS updates can be found here.

macOS Mojave-Present has moved operating system update installs back through Software Update in System Preferences. OS X Mountain Lion-macOS High Sierra installs operating system updates through the Mac App Store.

Mac OS X Cheetah-OS X Lion installs operating system updates through Software Update in System Preferences. MacOS (formerly Mac OS X and OS X) is the operating system that powers Mac computers. Occasionally, Apple will make major changes to how app data syncs across devices over iCloud, and waiting to upgrade devices after the major operating system upgrades have been released for each device type provides for the smoothest upgrade experience. Instructions on updating each device are also included.įor users with multiple Apple devices (such as a Mac, iPhone, and iPad, etc.), I recommend waiting to install annual major operating system upgrades after Apple has released the major operating system upgrades for each device type. This is a regularly updated list of Apple operating system updates (grouped by device), along with guidance in determining when it is recommended to install each update. AKB2000014 Ongoing List of Apple Operating System Updates

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