Nov 24, 2025 · Apple used “Mac OS X” until 2011, then “OS X” until 2016, and finally adopted “macOS” starting with macOS 10.12 Sierra, aligning it with iOS, tvOS, and watchOS naming …

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 …

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.

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 the first version of Mac OS X and the codenames that Apple used …

Jul 28, 2025 · If you’re wondering what the latest version of macOS is, what came before it, or when the next update is due, this guide has everything you need. We’ve listed every major …

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 …

3 days ago · 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.