If i remember it right AGM-158D is now XR? So it is said to have a new wing Design. Has someone any information on that?
AFAIK AGM-158D is a JASSM ER with M code GPS, revised wing with a bit more range (like AGM-158B2), and a weapon datalink. If there is an ultra long ranged version of JASSM it hasn’t come out of the shadows yet. IMO a major range increase would involve a big airframe stretch making it more of a 3000 lb class weapon or else a warhead reduction in favor of more fuel.