There's been recent changes that I assume Oni made to "streamline" the code to make it faster has taken some individuality from the girls. Main one I've noticed is about seeing the girl's being topless. Emma doesn't react differently than the other girls (she used to like it more if you were stunned, now just reacts the same as everyone else and likes a compliment best). Jean's intro has also been adjusted so that while she flashes you, it no longer counts as you seeing her topless, which means less stat boosts to start off with (making her a little harder to get going in the early game).
Anyone notice any other examples?