Saggy tits like a 60 year old? They aren't saggy at all. They just hang naturally, instead of standing out like falsies so often do. And she certainly doesn't look like a 60 year old (or even a 40 year old, for that matter).
I don't object to Lisa changing her hairstyle partway through the game. Girls do change their hair, after all. I was also into the more "straight laced" look which Lisa had in the early game, but I think that it was effective for helping to establish her character, and I think it's realistic for her to change her look as she becomes more outgoing and sexually adventurous.
And once again, the more natural looking breasts aren't "saggy", in the sense that an old woman's would be. The only "sag" is the natural hang which large breasts actually have, in the real world. The older version of her tits looked great, and I liked them, but they did look more like she had implants, which not many 18-20 year old girls have, since most of them can't afford the $5k (or more) for surgery.
It's weird that we now know that the newer version of Lisa was already in the game in the previous update, and we all just accepted it and enjoyed the update, including you. And now that we've just discovered that a change was made (long ago), you're suddenly terribly upset about it. But you had already played the previous update, and had nothing bad to say about it.
Wow. You're really raging. You suddenly went from being the game's biggest fan (supposedly), to all but boycotting it. That's quite a reaction.