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 Monterey or 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?
As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS. If a later version is compatible with your Mac, you can install the latest Apple software updates to get it.
| macOS | Latest version |
|---|---|
| macOS Monterey | 12.5 |
| macOS Big Sur | 11.6.8 |
| 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 |