How to find out the current version of Mac OS on your Mac

ever needed to know what version of Mac OS was installed
on your computer? Some might

Answer "never" but answer
Most would say yes.

More often
MacOS version is needed for
compatibility checks, but sometimes it can also be used for
solving systemic problems. Many users themselves know which version of the system
Below, we'll tell you how to find out the version of Mac OS on your Mac.

How to Find Your VersionMac OS

  1. In the upper left corner of the Mac menu bar, click Apple.
  2. Now choose About This Mac.
  3. A new window will open with the version of Mac OS installed on your computer.

In the screenshot above you can see the version of “MacOS X El Captain 10.11.4”, and on
screenshot below – "MacOS Mojave

Bonus:On this screen, you can also find out
Mac OS build number.Just click on the numberversion and you'll see code that
and is the build number. It will come in handy for advanced users.

Bonus 2: On the "About this Mac" screen you can find out
when it was released.

Bonus 3:There is also a
you can find your Mac's serial number.

Bonus 4A: You can also find out the exact version of the software through the Mac OS installer.

Why do you need to know the version?MacOS?

If you not
you see, why even know your version of MacOS, it can be useful for
for the following reasons:

  • If you need to know about availability
    features and compatibility.
  • If you need to check
    program compatibility.
  • Learn about the availability of support
  • When solving system problems.
  • To install, reinstall and
    Mac OS updates.
  • If you are using Combo Update to update your system.

Mac OS updates are available in the Mac App Store, and
updates for the current version can be found in the Software Update section in System

Story versions and titlesMac OS X

A significant version of Mac OS has its own name. First nine
versions were named after wild cats, and the following were named after locations
State of California.

That's what they called
all versions of Mac OS:

  • Mac OS X 10.0 Cheetah
  • Mac OS X 10.1 Puma
  • Mac OS X 10.2 Jaguar
  • Mac OS X 10.3 Panther
  • Mac OS X 10.4 Tiger
  • Mac OS X 10.5 Leopard
  • Mac OS X 10.6 Snow Leopard
  • OS X 10.7 Lion
  • OS X 10.8 Mountain Lion
  • OS X 10.9 Mavericks
  • OS X 10.10 Yosemite
  • OS X 10.11 El Capitan
  • MacOS 10.12 Sierra
  • MacOS 10.13 High Sierra
  • MacOS 10.14 Mojave

versions were simply called "Mac OS" or "System", but they were also built
were completely different. Modern versions of Mac OS are built
based on the BSD unix system, but the old ones are not.

However, the About This Mac screen is also available in very old versions
system, so the method will be the same.