Improved reporting of firmware, Gatekeeper, and clearer documentation are the main improvements.
firmware
If you haven’t yet installed any of the updates and upgrades released by Apple on 25 October 2021, […]
This article lists the firmware versions of Macs which have been successfully updated to run macOS 12.0.1, 11.6.1 […]
Installing two different versions of macOS within a single container brings flexibility as they share free space, a little economy maybe, and complexity – explained here.
Apple has just released the 11.5 update to macOS Big Sur. It’s of modest size, weighing in at […]
Erase your M1’s internal storage in Recovery, reinstall macOS and you could see an error in which it failed ‘to personalize the software update’. That’s not easy to fix, as explained here.
What would happen to a Mac’s firmware if you installed Monterey beta to its internal or external disk? Could that be reversed?
Apple should announce macOS 12 next week, but which Mac models will support it? Look in the firmware, not the tea-leaves for this speculative list.
iMac17,1 and other Mac models which don’t update their firmware properly can be brought fully up to date. What’s more, Apple Support is now reluctantly sorting this out those who persist with them.
The last five years have seen great changes in Mac firmware security. As Intel Macs are replaced by Apple Silicon models, firmware may at last be simpler and more secure at last.
The Eclectic Light Company 