From the box appearing, you will have a line that reads, e.g.:.
From the Apple menu , click About this Mac.
Information on when your Mac was made can be found by doing the following: If you aren't able to upgrade to the latest version of macOS, you can find links below to directly download the relevant version required. Each link provides information on which Macs can run which OS version, specified by production date. This means that the new OS is installed over the top of the old operating system, leaving files and applications in place. Operating System (OS) upgrades are performed in-place. Your Mac will notify you when updates are ready to install. To automatically download updates in the future, choose Apple menu > System Preferences, click App Store, then select “ Download newly available updates in the background”. Later versions may be available by upgrading your macOS. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos and FaceTime.
When the App Store shows no more updates, the installed version of macOS and all of its apps are up to date.
Use the Update buttons to download and install any updates listed.
Click Updates in the App Store toolbar.
If you’re using an earlier macOS, such as macOS High Sierra, Sierra, El Capitan or earlier, follow these steps to keep it up to date: Your Mac will notify you when updates require it to restart, so you can always choose to install those later. To automatically install macOS updates in the future, including apps that were downloaded separately from the App Store, select “ Automatically keep my Mac up to date”. To find updates for iMovie, GarageBand, Pages, Numbers, Keynote and other apps that were downloaded separately from the App Store, open the App Store on your Mac, then click the Updates tab. That includes Safari, iTunes, Books, Messages, Mail, Calendar, Photos and FaceTime.
When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date.
Or click “ More info” to see details about each update and select specific updates to install.
If any updates are available, click the Update Now button to install them.
Choose System Preferences from the Apple menu , then click Software Update to check for updates.
If you’ve upgraded to macOS Mojave or later, follow these steps to keep it up to date:
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