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Global Nav Open Menu Global Nav Close Menu; Apple; Shopping Bag +. For Mac OS X 10.5 - 10.11; 2. For Mac OS X 10.3 - 10.4 (KX-MC6000 / DP-MC210 / KX-MB3000 / DP-MB300 / KX-MB2000 / KX-MB2060 series only) macOS 10.15 or later is not supported. Mac OS, operating system (OS) developed by the American computer company Apple Inc. The OS was introduced in 1984 to run the company’s Macintosh line of personal computers (PCs). The Macintosh heralded the era of graphical user interface (GUI) systems, and it inspired Microsoft Corporation to develop its own GUI, the Windows OS. Today is the 20th anniversary of the launch of Mac OS X, and Macworld has an interesting piece on the history leading up to it. Jason Snell goes so far as to say that the new operating system for. Mar 28, 2021 This is a series of tips that cover Mac OS X client edition. Server forums cover Mac OS X server on the community. Here is the series of tips for related Macs.

Mac Os Mojave

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.

Mac Os Upgrades In Order

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

Mac Os X Series

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.

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.

Mac Os Download

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.