The history of macOS, Apple 's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its classic Mac OS.

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

Find out which computers are compatible with the most recent versions of macOS: Use About This Mac to see the version of Mac operating system installed on your Mac.

Curious about the versions of Mac OS X that came before? Here we’ll fill you in on the names of the different versions of the Mac operating system in order: from the newest macOS to...

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.

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 …

From 2001 to 2026, Apple has released a total of 22 Mac operating system versions. Here are all macOS software versions in order until 2026.

Jul 28, 2025 · Explore the complete history of macOS from Cheetah to Tahoe. Learn about every macOS version ever released, their codenames, release dates, and which versions are still …

Aug 17, 2025 · Including the initial public beta, Apple has released 22 major versions of the Mac operating system so far, with new launches now becoming an annual occurrence and kicking into …

Sep 13, 2024 · Apple’s macOS has continually evolved, introducing features that enhance user experience and system functionality. From the revolutionary Aqua interface to modern utilities like …