Well, actually it did change about a year or two ago. She used to have bangs, but now that she's done something about her wrinkles ... she's pulling her hair off her forehead.
But ... yeah ... she rarely changes her hairstyle or even her wardrobe style. But here, she's wearing a short skirt. I'm liking that she's doing that more. It used to always be pants or floor length dresses. I'd love to see more of this variety.