Bukkit

ChangeLog:

• Compatibility with MC 1.6.4
• Fixes for Filesystem support on Linux OS
• Fixed NPE bug in PrimitiveConverter
• Fixed CommonTagCompound writeTo(File) not always succeeding
• Fixed newline issue for multiline configuration text
• Fixed ItemStack equalsIgnoreAmount method
• Addition of new (File) Stream Utilities
• Addition of NBT Reading/Writing for BlockStates
• Initial move away from Block/Material ID and Data

Known to conflict with SpoutPlugin and possibly other plugins that replace packet listeners. To remain compatible, install ProtocolLib.