How to check the version of macOS in use
Apple released a new version of the macOS operating system about once a year. Here's how to check the version of macOS installed on MacBook, iMac, Mac Mini or Mac Pro.
To find this information, click on the Apple icon on the menu in the upper right corner of the screen and then select the About This Mac command.
The name of the macOS release you installed will appear on the Overview tab in the results window. Below is the exact version number of the installed operating system.
In the screenshot below, this is the macOS High Sierra operating system version, version 10.13. The version number recorded 10.13.4 is because this is the latest security update. Smaller updates are available in the Updates tab in the Mac App Store application.
Note : If you are using an older version of the Mac operating system, it may be called "OS X" instead of macOS.
If you don't use the latest version of macOS, you can install it from Mac App Store - assuming your Mac hardware is still supported by Apple. To do this, click the "Software Update" button in the About This Mac window, to open the Mac App Store. You can also launch Mac App Store in another way - for example, by clicking its icon on the dock.
You can download and install the latest release of macOS on your Mac right from the application. However, you should back up your Mac before continuing to prevent a problem.
I wish you all success!
See more:
- Instructions on how to find the serial number of the Mac
- Instructions for updating software for Mac details
- 10 troubleshooting tips for Mac OS X
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