If you want to upgrade already (and help me test stuff) you can connect to port 25565 with your upgraded 1.4 client. When testing new plugins etc I will be restarting it frequently, and there is a temp map w/o protection etc, but you can go and tame your first wolf!
- IRC chat (you can even chat with the 1.3 server)
- in-game chat channels
- Command permissions
I will be updating the list for the other things that are tested and working