OS X may be retired, but it deserves to be remembered. Take a trip back with these 14 key milestones in the double-decade history of the operating system that helped transform a nearly bankrupt Apple ...

After advertising Mac OS X Leopard as having "over 300 new features" in 2007, Apple previewed Snow Leopard at WWDC 2008. Notably, during that year's "State of the Union" session, Apple showed a ...

In 1984, Apple started using the Macintosh operating system in its computers, which later became known as the Mac OS. Its introduction of a graphically driven interface (GUI) had been revolutionary, ...

is editor-at-large and Vergecast co-host with over a decade of experience covering consumer tech. Previously, at Protocol, The Wall Street Journal, and Wired. For nearly two decades, the release of a ...

Leave all Apple-installed components where they are. Don't, for example, move Safari out of /Applications, or move your user Home folder. In System Preferences > Software Update, make certain that ...

Yosemite changes the look and feel of your Mac, from ever-so-transparent windows to a completely new Spotlight interface. But what hasn’t changed is how you get it—following in the footsteps of ...

UTM is a cross-platform emulator that allows you to run macOS, Windows, or Linux. Here's how to use it to run very old versions of Apple's Mac operating system. But there's another great free OS ...

The user interface on Edge for Mac OS is clean and self-describing. There is no clutter as in previous versions of Edge. There is ample spacing among icons on the new tab page and the favorites bar.

Back when Ars Senior Products Editor Andrew Cunningham was forced to work in Mac OS 9 by his colleagues in September 2014, he quickly hit a productivity wall. He couldn’t log in to his Ars e-mail or ...