Sep 16, 2024 · Download and install current or previous versions of the Mac operating system on compatible Mac computers.

macOS, originally Mac OS X, previously shortened as OS X, is a Unix-based [6] [7] operating system developed and marketed by Apple since 2001. It is the current operating system for Apple's Mac computers.

macOS was first released in 1999 as Mac OS X Server 1.0. It was built using the technologies Apple acquired from NeXT, but did not include the signature Aqua user interface (UI). The desktop version aimed at regular users— Mac OS X 10.0 —shipped in March 2001.

Jan 1, 2025 · Mac OS X was the official naming through version 10.7, from 2001 to 2011. In the next four years, the OS X names were used. Finally, Apple shifted to "macOS" with the release of macOS High Sierra in 2016. The latter helped standardize the naming of Apple’s operating systems — macOS, iOS, tvOS, iPadOS, etc.

Feb 11, 2025 · Here’s an overview of every version of macOS and Mac OS X Apple has released. You’ll find a complete list of the latest release of each version of OS X and macOS, along version code...

Want to know how to download MacOS and Mac OS X installers? You might be wondering where you can download current and older versions of Mac OS from, particularly if you’re looking to update a Mac, install a different MacOS version, or even use an older system software version.

In 2011, Mac OS X was renamed OS X. In early 2015, the number of software platforms rose by one, from two to three, as watchOS was introduced. In late 2015, tvOS was introduced, increasing the number of software platforms again by one, from three to …

Macs > By Capability > Max Supported Version of Mac OS X (OS X, macOS) The maximum version of Mac OS X, OS X, or macOS supported by each G3 and later Mac follows. For complete specs on a particular system, click the name of the Mac.

The versatility and power of OS X help a Mac fit in just about anywhere — including Windows networks. Want to transfer your files, photos, and other data from a Windows PC? OS X lets you do that easily with Migration Assistant.

Nov 7, 2010 · Use About This Mac to check the version of Mac operating system (macOS) installed on your Mac. Then find out whether it's the latest (newest, most recent) version. From the Apple menu in the upper-left corner of your screen, choose About This Mac.