New 1.2.3 Update

So I've been playing on the server and Apvia. I decided to update Minecraft today. I've been putting it off because of the server. Anyway, I rebuilt Apvia and discovered all the double doors are screwed up. I'll be updating the sever as soon as the bukkit updates are ready.

This is a fortress on the server world

The gates to Castlegaurd on the Apvia world.

These things attacked me!

They seem to make bricks disappear in a puff of smoke and they attack in groups if you don't kill them fast enough. They did a lot of damage to this building. I have to say minecraft isn't really playable if my buildings are just going to fall apart. I'm not sure yet what these things are though.