Find out which macOS your Mac is using

Use About This Mac to check the version of Mac operating system (macOS) installed on your Mac. Then find out whether it's the latest (newest, most recent) version.

Find out which macOS is installed

Find out which macOS versions are the latest

Find out whether you can upgrade macOS

Find out which macOS is installed

From the Apple menu  in the upper-left corner of your screen, choose About This Mac. The window that opens might look different from the example shown here, but it always includes the macOS name and version number. If you need to know the build number as well, click the version number to see it.

About This Mac window

Find out which macOS versions are the latest

As updates that change a macOS version number become available, this table is updated to show the latest version of that macOS.

macOS

Latest version

macOS Sequoia

15.1

macOS Sonoma

14.7.1

macOS Ventura

13.7.1

macOS Monterey

12.7.6

macOS Big Sur

11.7.10

macOS Catalina

10.15.7

macOS Mojave

10.14.6

macOS High Sierra

10.13.6

macOS Sierra

10.12.6

OS X El Capitan

10.11.6

OS X Yosemite

10.10.5

OS X Mavericks

10.9.5

OS X Mountain Lion

10.8.5

OS X Lion

10.7.5

Mac OS X Snow Leopard

10.6.8

Mac OS X Leopard

10.5.8

Mac OS X Tiger

10.4.11

Mac OS X Panther

10.3.9

Mac OS X Jaguar

10.2.8

Mac OS X Puma

10.1.5

Mac OS X Cheetah

10.0.4

Find out whether you can upgrade macOS

If a later version is compatible with your Mac, you can download and install macOS to update or upgrade to that version. Find out whether your Mac is compatible with the latest macOS versions:

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