Notch’s update is out. The lantern change is not in yet, and the damage system and minecarts are not going to be added until the multiplayer server goes into its beta stage.
Since the damage system isn’t in yet, I’m not going to turn on monsters. So, the server will remain as is for now.
I have updated both the server and mod code (I can’t believe Hey0’s done already), so you should no longer get the “Outdated client” message.