Mac OS X was originally presented as the tenth major version of Apple's operating system for Macintosh computers; until 2020, versions of macOS retained the major version number '10'. Previous Macintosh operating systems (versions of the classic Mac OS ) were named using Arabic numerals, as with Mac OS 8 and Mac OS 9.

• Mac Os Version Catalina
• What Is The Current Version Of Catalina

• Download the latest version of macOS Catalina Patcher for Mac - Run macOS Catalina on your Unsupported Mac. Read 14 user reviews of macOS Catalina Patcher on MacUpdate.
• The Latest Version is macOS Big Sur. Apple’s newest Mac operating system is macOS 11.0, also known as macOS Big Sur. This is the sixteenthmajor release of the Mac operating system. MacOS 11.0 Big Sur drops support for some Macs that ran macOS 10.15 Catalina. Here’s how to tell if your Mac can run Big Sur.

Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by some product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.

If your macOS isn't up to date, you may be able to update to a later version.

Which macOS version is installed?

From the Apple menu  in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.

Mac Os Version Catalina

Which macOS version is the latest?

These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Big Sur. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.

What Is The Current Version Of Catalina

If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.