macOS (previously OS X and originally Mac OS X) is a proprietary Unix-based [9][10] operating system, derived from OPENSTEP for Mach and FreeBSD, which has been marketed and developed by …

2025年12月18日 · Download and install current or previous versions of the Mac operating system on compatible Mac computers.

2025年11月24日 · Learn about all macOS versions Apple has ever released, including the latest macOS Sequoia.

2025年12月12日 · 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.

2025年12月18日 · macOS Tahoe is the latest version of macOS, featuring Apple's new Liquid Glass design, a more powerful Spotlight, and more.

MacOS installers can be used to update systems directly, or even make bootable USB drives out of. Downloading and using different Mac OS installers is very common for performing system updates …

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 WWDC 2025 on June …

2024年9月16日 · macOS Sequoia, the latest version of the world’s most advanced desktop operating system, is available today as a free software update for Mac.