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.
Anything from Apple's download servers is an update, and not a full installer for that version of the operating system.The only full upgrade installers are in the Mac App Store, and here is the link to How to upgrade to macOS High Sierra.
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.
What Is The Latest Macbook System Update
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.
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Here's how to upgrade macOS and adjust your update preferences. To learn more about this topic visit the following articles: How to update the software on yo.
While macOS is a very robust operating system, sometimes there can be hiccups when performing system updates. In my case, the progress bar stopped and stayed that way for a few hours. If you are experiencing a frozen Mac when updating the system, here are a few ways to save your data, attack the problem, and solve the issue.
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.
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 Apple menu > Software Update.
Macbook Pro System Update
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Macbook System Update
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Find out which macOS your Mac is using.
You can redownload apps that you previously downloaded from the App Store.
Your Mac doesn't automatically download large updates when it's using a Personal Hotspot.