

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. 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.

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: How to get updates for macOS Mojave or later

Installing Newer Software on an Older Mac - Duration. Make external Mac OS X 10.5.8 Leopard Boot Disk from Power Mac G5 - Duration: 10:39.
