No specific info about version 16.3. Please visit the main page of Install macOS Big Sur Beta on Mac Informer.
Makes it easy to run macOS 11 on unsupported Macs.
Install macOS Mojave on unsupported Mac computers.
Install macOS Sierra on unsupported computers.
Takes control of iCloud, investigates and diagnoses its problems.
Download macOS directly from Apple servers and install it on your Mac.
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