Mac Os Macbook Air

Back up your data, check your applications for compatibility, and depending on which MacBook Air model you have, download El Capitan, High Sierra, or Catalina. If your computer's maximum OS is El Capitan, you can't use that book on it. In any case, combo updaters cannot be used for a full version upgrade. Aug 10, 2020.

How to get updates for macOS Mojave or later

If you've upgraded to macOS Mojave or later, follow these steps to keep it up to date:

Choose System Preferences from the Apple menu , then click Software Update to check for updates.
If any updates are available, click the Update Now button to install them. Or click ”More info” to see details about each update and select specific updates to install.
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. That includes Safari, iTunes, Books, Messages, Mail, Calendar, Photos, and FaceTime.

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.

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.” Your Mac will notify you when updates require it to restart, so you can always choose to install those later.

How to get updates for earlier macOS versions

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:

Open the App Store app on your Mac.
Click Updates in the App Store toolbar.
Use the Update buttons to download and install any updates listed.
When the App Store shows no more updates, the installed version of macOS and all of its apps are up to date. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos, and FaceTime. Later versions may be available by upgrading your macOS.