macOS (previously OS X and originally Mac OS X) is a proprietary Unix-like [7][8] operating system, derived from OPENSTEP for Mach and FreeBSD, which has been marketed and …

Oct 23, 2025 · Learn about all macOS versions Apple has ever released, including the latest macOS Sequoia.

Nov 3, 2025 · Download and install current or previous versions of the Mac operating system on compatible Mac computers.

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.

macOS is the Mac operating system, like iOS is the iPhone operating system and iPadOS is the iPad operating system. It’s the software that runs in the background, providing the user …

Aug 17, 2025 · Apple’s Mac operating system has undergone many sizeable changes over the years. Here’s every version in order, from the first edition in 2000 to the present.

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 …

Mar 3, 2025 · macOS is a Unix-based operating system developed by Apple Inc. for its line of Mac computers. It serves as the primary interface between the user and the hardware, managing …

Jul 28, 2025 · We’ve listed every major macOS and Mac OS X release in order, along with their version numbers, codenames, release dates, and support status. What Is the Latest macOS …

Jan 21, 2025 · macOS is Apple’s proprietary operating system for Mac computers. Initially known as Mac OS X and later OS X, the name changed to macOS in 2016 to align with Apple’s other …