Aren't there issues at the bytecode level? I've been studying bytecode and ceval.c and I know there are significant differences in the bytecode set, as well as

Aren't there issues at the bytecode level? I've been studying bytecode and ceval.c and I know there are significant differences in the bytecode set, as well as in the code object and function object. So what would a "Python 2.8" compile phase generate? Would the huge switch statement in ceval.c have to have a whole new layer of if-logic in it?