The first Mac software was called System 1 and it was released on January 24, 1984, and there have been 30 major updates since. Apple rebranded to Mac OS with the release of mac OS 8 on July 26, 1997.

ready to update Mac OS on your Mac here's how to get the latest features and security enhancements as soon as they're available before you start make sure your Mac is plugged into power and connected ...