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

macOS (previously OS X and originally Mac OS X) is a proprietary Unix-like [6][7] operating system, derived from OPENSTEP for Mach and FreeBSD, which has been marketed and developed by …

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

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 (previously OSX and originally MacOSX) is a proprietary Unix-based [7][8] operating system, derived from OPENSTEP for Mach and FreeBSD, which has been marketed and developed by …

Jun 11, 2025 · What is macOS? MacOS is the computer operating system (OS) for Apple desktops and laptops. It is a proprietary graphical OS that powers every Mac. OSes interact with a computer's …

Mac OS X, OS X, and macOS The system was launched as Mac OS X, renamed OS X from 2012—2016, [10] and then renamed macOS as the current Mac operating system that officially …

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 …

macOS Releases Below is a brief summary of each macOS release going back to 2013. Apple announces the next operating system during WWDC in the spring and releases it to the public in the …