The transition to Apple Silicon, which began with macOS Big Sur, represented another monumental shift. The early OS X releases focused on stability and establishing the Unix-based core.
MacOS Version Progression In Order
OS X Lion (10. In 2016, with the release of macOS Sierra, Apple joined the broader industry trend of simplifying its naming convention.
This move shifted the focus away from version numbers toward the heritage of the operating system, aligning the desktop OS naming with its mobile counterpart, iOS, and watchOS. This change moved the architecture from Intel processors to Apple’s custom-designed M1 chips, unlocking new levels of performance and energy efficiency and setting the stage for the current generation of Macs.
MacOS Version Progression In Order
Initially launched as Mac OS X in 2001, the "X" (Roman numeral for 10) signaled a clean break from the past, emphasizing its status as a completely new operating system built on Unix. Each major release built upon the last, refining the user interface, enhancing security, and laying the groundwork for the seamless ecosystem we see now.
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