In order to find out what your current macOS version is, click on the Apple menu located in the top-left corner of your screen and then select the option labeled About this Mac . The current version of your macOS will be shown at the top of the Overview tab.How do you check Mac OS version?
How to Find Your OS X Version Number Click the Apple icon at the top left of your screen. Choose the first item in the menu, “About This Mac.” Take note of your Mac operating system, both by its codename and its version number. For instance, this is v10.10.5, also known as Yosemite.What is the current operating system for Mac?
The current Mac operating system is macOS, originally named "Mac OS X" until 2012 and then "OS X" until 2016.