[Joe Johnson]

Wow, this is a change. It seems pretty clear. But I am sure it will get murky by the time we are done.

It seems to require retyping of last year's code to read encoder pulses or to navigate using the encoders or whatever.

As others have asked, does changing variable names count as altering?

I understand some of the concerns the rule is trying to address but I don't know how this rule will work out in practice.

Joe J.