Dec 18, 2025 · Download and install current or previous versions of the Mac operating system on compatible Mac computers.

macOS was first released in 1999 as Mac OS X Server 1.0, built using the technologies Apple acquired from NeXT, but did not include the signature Aqua user interface (UI). Mac OS X 10.0 is the first …

Nov 24, 2025 · Learn about all macOS versions Apple has ever released, including the latest macOS Sequoia.

Dec 12, 2025 · Check end-of-life, release policy and support schedule for Apple macOS.

macOS Tahoe with a new design, more ways to work seamlessly across devices, and new features to turbocharge productivity every day.

Here's everything you need to know about the latest version of macOS and every version of the Mac operating system from Cheetah to Tahoe.

macOS Ventura (version 13) is the nineteenth major release of macOS, Apple 's operating system for Macintosh computers. The successor to macOS Monterey, it was announced at WWDC 2022 on …

Nov 20, 2025 · Discover the complete list of macOS updates ever released and check the compatibility of your Mac with macOS Compatibility Checker.

Learn how to set up and use macOS. Find all the topics, resources, and contact options you need for macOS.

Oct 10, 2025 · MacOS, operating system developed by the American computer company Apple Inc. The OS was introduced in 1984 to run the company’s Macintosh line of personal computers, which …