macOS Big Sur: Your MacBook and iMac are about to get one of their biggest updates EVER | Express.co.uk
macOS 12: Release Date, New Features, Supported Devices, and More | Beebom
Got this 12” PowerBook, that only boots to this screen and not into open firmware. Is it firmware locked, and if so how can I wipe it and reinstall OS X? :
macOS 12 Monterey: New features, compatibility, release date