Mac OS X 10.0 (code named Cheetah) is the first major release of macOS, Apple's desktop and server operating system. It was released on March 24, 2001, for a price of $129 after a public beta. Mac OS …

Feb 5, 2026 · The first ancestor of the macOS family was Mac OS X Public Beta released in 2000, followed by a public release of Mac OS X 10.0 in 2001. Let’s recount the stories of all Mac OS X …

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

Feb 13, 2026 · Explore every macOS version from Mac OS X Cheetah to macOS 26 Tahoe, with release dates, features, names, and the versions still supported.

Jun 3, 2024 · Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X …

Sep 13, 2024 · On March 24, 2001, the company released Mac OS X 10.0, known as Cheetah, ushering in a new era with its Aqua user interface. Subsequent updates included Puma (10.1), Jaguar (10.2), …

Sep 28, 2025 · Here's the complete list of all macOS versions released from 2001 to 2025. From macOS Cheetah to macOS Tahoe, find yours here.

Mac OS X 10.0, code-named Cheetah, is the first official release of Apple Inc.'s operating system Mac OS X after Mac OS X Public Beta and before Mac OS X 10.1. Mac OS X 10.0, and all updates in the …

Aug 31, 2025 · Starting with the Public Beta and up through 15.1.1, there have been 245 macOS releases, both major and minor. This figure includes the one odd macOS X release: 10.2.7. This …

Sep 30, 2025 · Whether you’re checking compatibility for an older Mac, planning an upgrade, or simply curious about Apple’s OS history, you’ll find every version with release dates, support status, and key …