MacOS Big Sur supports most Mac models introduced in 2013 and later. View compatible Mac models. Before you upgrade, make a complete backup with Time. MacOS Big Sur supports most Mac models introduced in 2013 and later. View compatible Mac models. Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud. Learn how to back up your Mac. TIP On a Mac with a wide color display, you can use the standard color panel to select and preview P3 colors and compare them with sRGB colors. System Colors macOS offers a range of standard system colors that automatically adapt to vibrancy (see Translucency and Vibrancy ) and changes in accessibility settings like Increase contrast and Reduce. Easily check which versions of mac OS, iOS, iPadOS, or watchOS are compatible with your Mac model or iDevice. Guide includes OS X 10.8.x to macOS 11.0.x. Tips If you are on a 64-bit OS but are using a 32-bit JRE, then you should get the 32-bit version of GitEye. The launcher for GitEye will typically find Java automatically, but if it cannot, or you need to control the specific JRE that it uses, you can edit the giteye.ini file.

Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by a 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.

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

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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 Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.

Which macOS version is the latest?

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 Big Sur. 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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