[scarface74]

If you’ve ever followed Raymond Chen’s Microsoft Blog, you would get an idea of the hacks upon hacks upon hacks that it takes to keep backwards compatibility in Windows. It’s also well known how slow the Windows release cycle is because Microsoft won’t break compatibility.

Windows is a behemoth compared to MacOS in terms of processor requirements and memory. There is a reason that Microsoft couldn’t get Windows running well on low end and low power ARM processors.

But how far back would you like Apple to go with backwards compatibility? 68K programs? PPC programs? Keep porting Carbon APIs to newer platforms forever?

[Tempest1981]

Right, imagine simplifying and shedding all of that technical debt. You can move faster, reduce the QA matrix, and cut down the number of permutations that developers need to consider and support.