Porting iOS to Macs don’t require ARM. Almost every iOS app started life running on x86. The iOS simulator runs iOS software compiled for x86 linked to x86 versions of the iOS framework.
I didn't say it does, I'm just saying that it'll be easier. Instead of working on both x86/ARM frameworks, they'll just stop supporting x86 (freeze) and only update on the ARM framework from now on.
They did the same thing with PowerPC and x86-32. No reason to expect them to support x86-64 in 5-10 years if they switch all Macs to ARM.
They did the same thing with PowerPC and x86-32. No reason to expect them to support x86-64 in 5-10 years if they switch all Macs to ARM.