Upgrades include rubberized grips, an easier to read bevel scale, and a maximum bevel angle of 53 degrees.
The one thing Skil failed to improve when they designed this saw was the depth bracket. If the saw gets banged around (and every saw does) the bracket will no longer slide smoothly and you'll have to bang the base to get it to move.
The wrench stores in a slot in the base and will not get lost if you put it in there. Why is the slot on this saw empty? We foolishly forgot to stow the wrench and now we can't find it. Our mistake.