appleinsider.com › articles › 26 › … From A12Z to A18 Pro: How Apple Silicon Macs have gone back to the basics …Booting it up, assuming the DTK is a production-fused unit, you're greeted with macOS Big Sur. It introduced the last major redesign of macOS, up until macOS Tahoe came… Apr 9, 2026 · Marko Zivkovic