How to Find out which macOS your Mac is using

You can find out which version of macOS your Mac is running by following these steps:

  1. Click on the Apple logo in the upper left corner of your Mac’s screen.
  2. Select “About This Mac” from the drop-down menu.
  3. A window will appear, displaying the macOS version that your Mac is currently running.
  4. The version number will be listed under the “macOS” or “OS X” heading, along with the version name.

For example, if your Mac is running macOS Big Sur (version 11.6), you will see “macOS Big Sur Version 11.6” displayed in the “About This Mac” window.

Note: If you are running an older version of macOS, such as OS X Yosemite or earlier, the version number may be listed under “OS X” instead of “macOS.” Additionally, if you have recently updated your Mac to a new version of macOS, it may take a few minutes for the “About This Mac” window to update with the new information.