As far as I've been able to tell so far if you turn off the Calf flex JCM and set the foot morph to zero the older clothing and shoes work fine. The body changes seem to be in fine detail and the texture rather than gross changes to the shape. With the calf flex active stokings (as in my MiniDress set) and some pants (those that are tighter fitting) will poke thru as the calf flexes. Open toed shoes (again such as the ones in the MiniDress set) don;t fit so well with the smaller foot morph of the update, but work fine if that morph is dialed to zero. Oh and the "Wonderbra" morph is new and, as far as I know, is not yet supported in any clothing for GNDV4.

mike