Mac Studio restore from older macOS

wfsharon wrote:

Will the older Intel apps run in an M2 environment?

Many Intel applications will run under Rosetta 2 translation. There will be a delay the first time you run them, while the Mac prepares an ARM machine code translation of the Intel machine code.

Things that won't run:

• 32-bit applications
• System-level code (kernel extensions)
• Virtual machine software that creates Intel virtual machines. On Intel-based Macs, Parallels Desktop creates Intel VMs. On Apple-Silicon-based Macs, it creates ARM VMs.

1. You won't be able to restore the entire system, but will be given the option of migrating from it when setting up the new computer.

2. In general, yes, but specific applications may need to be upgraded or replaced.

(254901)

Apple-Silicon M-series processor Macs:

Apple says every well-behaved ordinary Application, originally written for Intel processors (that does not use Virtualization) will run on Apple-Silicon. It will use Rosetta emulation to translate the Intel binary to M1-binary.

Your Intel Apps will run and not crash while being executed on a completely different processor than the one the developer used. This is a truly remarkable feature.

It runs, and you can get your work done, which is what Apple promised and delivered.

--------

Most cross platform development systems, such as Android simulators, DO use Virtualization instructions, and are not currently working on Apple-Silicon processors.

if the developer is serious about the Apple market, they will already be working on an Apple-Silicon OPTIMIZED version of their App. This version will ultimately contain code for BOTH Intel and Apple-Silicon, packaged up together as a "Universal Binary" and the correct modules for your processor are selected at run-time.