To check what version of macOS you're running,click on the Apple logo on the far left side of the toolbar,select "About This Mac", and look at your versionnumber under the big "macOS" or "OS X". If it's 10.10 or higher, you're all set.
To check what version of macOS you're running,click on the Apple logo on the far left side of the toolbar,select "About This Mac", and look at your versionnumber under the big "macOS" or "OS X". If it's 10.10 or higher, you're all set.