矢継ぎ早のアップデートでちょっと何をアップデートしたのかよく分からないですが、Minecraft 1.4.5 がプレリリース。
Minecraft 1.4.5 Pre-release
Unfortunately we have to patch Minecraft again, this time to fix the broken LAN server functionality. Good news is that this only affects the client, so 1.4.5 clients will be able to play on 1.4.4 servers without any problems.
Clients now get the correct IP for LAN servers
Fixed the incorrect positions of some particles
… and fixes for MC-2507, MC-2508, MC-2500, and MC-2498
Download the pre-release here:
Server: http://assets.minecraft.net/1_4_5/minecraft_server.jar (or EXE)
This release will be uploaded to the launcher on Tuesday next week (November 20).
// The Minecraft Team
Update: The client jar-file has been updated, this time with particles properly fixed.