I haven't had a chance to try them out yet ( I will tomorrow), but from the looks of it, they seem to be A LOT better.
The front hydration fill hole has been moved back, which makes it easier to fill during a ride. The rubber baffle is thicker and seems more durable. There is a plastic cap that snaps on to hold the rubber baffle in place and also the rubber extender that holds the straw.
The Bento box is no longer taper so the capacity is much greater that the last one.