4 days ago · 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 …

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

Nov 3, 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.

macOS Sequoia (version 15) is the twenty-first major release of Apple 's macOS operating system, the successor to macOS Sonoma. It was announced at WWDC 2024 on June 10, …

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.

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

Upgrade macOS on your Mac Find out how to upgrade to the newest version of macOS for the latest features and strongest security, and how to keep your Mac up to date automatically.

macOS Tahoe (version 26) is the twenty-second and current major release of Apple 's macOS operating system. The successor to macOS Sequoia (macOS 15), it was announced at …