To update your Mac, open the System Preferences app or the “About This Mac” menu. If your Mac is still running macOS High Sierra or earlier, you’ll need to go through the App Store to update it. You should update your Mac whenever you can, as every update comes with new features and security patches.
Can macOS Sierra 10.12 6 be updated?
In keeping with Apple’s release cycle, macOS 10.12 Sierra will no longer be receiving security updates.
How do I update my Mac from 10.12 6 to 11?
From the Apple menu in the corner of your screen, choose System Preferences. Click Software Update in the System Preferences window. Can’t find Software Update? Software Update now checks for new software.
Is my Mac too old to update?
A product is considered obsolete if it was discontinued more than seven years ago. Taking a look at macOS compatibility (discussed below), we can see that most of the time, Macs are eligible to get the latest macOS version for about seven years. Apple generally supports each macOS version for three years.
