How to update the software on your Mac

If you already upgraded to macOS Mojave:

1. Choose System Preferences from the Apple () menu, then click Software Update to check for updates:
   
2. If any updates are available:
   • Click the Update Now button to install all available updates.
   • Or click ”More info” to see details about each update and select specific updates to install. 
3. When Software Update says that your Mac is up to date, macOS and all of its apps are also up to date. That includes Safari, iTunes, Books, Messages, Mail, Calendar, Photos, and FaceTime.

To automatically install macOS updates in the future, including apps downloaded from the App Store, select ”Automatically keep my Mac up to date.” Your Mac will notify you when updates require your Mac to restart, so you can always choose to install those later.

If you're using macOS High Sierra, Sierra, El Capitan, or an earlier macOS:*

1. Open the App Store app on your Mac.
2. Click Updates in the App Store toolbar.
3. Use the Update buttons to download and install any updates listed.
4. When the App Store shows no more updates, your 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 are available by upgrading your macOS.

To automatically download updates in the future, choose Apple menu () > System Preferences, click App Store, then select ”Download newly available updates in the background.” Your Mac will notify you when updates are ready to install.

* If you're using OS X Lion or Snow Leopard, get OS X updates by choosing Software Update from the Apple menu.

• To find updates for iMovie, Garageband, Pages, Numbers, Keynote, and other apps that came separately from the App Store, open the App Store on your Mac, then click the Updates tab. You can also redownload apps from the App Store.
• Learn how to get updates for iPhone, iPad, or iPod touch.
• Find out which macOS you're using.
• Your Mac doesn't automatically download large updates when it's using a Personal Hotspot.