Introduction
In September 2000, just over 20 years ago as I write this, Apple released the first public beta of Mac OS X, which represented a complete rethinking of its previous operating system; version 10.0 Cheetah shipped the following year. Throughout 15 major revisions and multiple name changes (from Mac OS X to OS X to macOS, and from big cats to California landmarks), one thing has stayed the same: the number 10.
macOS Big Sur finally bumps the version number up to 11 (insert obligatory Spın̈al Tap joke here), and marks that transition with dramatic changes in look and feel. Those changes extend all the way to the underlying design of Big Sur, which supports both Intel-based Macs and the newer Mac models powered by Apple silicon—ARM processors ...
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