Find your macOS version

To find which version of macOS is running on your Mac Device (Macbook, iMac or Mac mini) you can try the following options,

1. Using About Option on Menu

• Click on the Apple icon on the menu bar,
  
• Select About this Mac option,
• You should see details about the installed macOS on your Apple device,

macOS Monterey
Version 12.2
MacBook Air (M1, 2020)
Chip Apple M1
Memory 16 GB

2. Using Terminal command

You can type command sw_vers to find out about your macOS version,

List of all macOS versions (updated Feb-2022)

macOS Monterey (Latest): 12.2.1
macOS Big Sur: 11.6.4
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