If you’re still using an Intel Mac, do you know when its macOS support will end? Is it worth upgrading any more when most of the new features are for Apple silicon Macs?
Rosetta
68K to PowerPC in 1994-1998, on to Intel in 2006-2009, and to Apple silicon from 2020. The 68K emulator, Rosetta, and Rosetta 2 that enabled backward compatibility.
Which versions of macOS can run in a VM? Can they run Intel apps too, and Intel macOS? How well do they perform? Can they access iCloud and run App Store apps?
Safari and its supporting frameworks and components, used to be installed in the Data volume, but now come in cryptexes. These also account for the larger macOS updates for Apple silicon.
From Hypervisor APIs in OS X 10.10 Yosemite in 2014, through early VirtIO kernel extensions in Mojave in 2018, and Arm hypervisor support in Big Sur.
Coping with 64-bit code, APFS, the different CPU, the SSV, System Settings, Recovery Mode, and how to get the best from migration and sharing in iCloud.
Neither its man page or usage information are complete or correct. Here’s how to check for available updates and install them using softwareupdate.
Details of the three standard Cryptexes in Ventura 13.3, when they can be loaded in the boot process, and where they fit in with Rapid Security Responses.
They’re everywhere: whatever you do, something somewhere will cache it. Later that can cause puzzling problems, but makes our Macs faster as a result.
Rosetta 2 is key feature for the transition to Apple silicon, and is also available to run Intel x86_64 binaries in virtual macOS and Linux (in Ventura).
The Eclectic Light Company 