Ah, I thought the binaries were updated as the source was! My bad
That shouldn't be a problem. I can just get the source and recompile my own World.exe and Zone.exe then!
Also, the melee distance thing might not actually be a problem. I only really noticed it in the Plane of Disease when fighting those goo thingies. They could attack me when I was still too far away to attack them. I'll look into it more and see if I can't figure out what's going on. It may be that they're supposed to do that though as I've never fought 'em on Live (only level 35 there).