Is your Mac up to date with the latest version of the Mac operating system (macOS or OS X)? Is it using the version required by some other product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.

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If your macOS isn't up to date, you may be able to update to a later version.

Which macOS version is installed?

From the Apple menu  in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Mojave, followed by its version number. If you need to know the build number as well, click the version number to see it.

Jul 31, 2020. Designed with an ultrathin display, the Apple MacBook Air features 1366 x 768 resolution on the 11' and 1440 x 900 resolution on the 13'. Combined with the LED backlighting, colors appear bright and vibrant from almost any angle, making the MacBook Air ideal for anyone editing photos, creating a presentation or just watching a movie. Aug 25, 2020.

This example shows macOS Catalina version 10.15 build 19A583.

Which macOS version is the latest?

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These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Catalina. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.

If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.

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