I never jumped to RC7 for that reason, although admittedly, he made the changes in RC7 in response to some of us (including me) noting some seeming timing discrepancies in the Mega Man 3 title screen. What I didn't know is that that line's length can apparently vary just a smidge, but at the very least, on my cart, it matches what is in RC6.
For the time being, I'm back on RC4, simply because of the odd issues I was getting in Ultima IV. I don't really need the changes in RC6 badly.