Bukkit

1.6

Lots of new things here:

• Completely new configuration system (internally)
• Added self-updating configuration (no need to delete your configurations any more, and all your options get saved on config update!)
• Added limited support for not using items (so tools!)
• Added support for blocking tilling dirt into soil (same permission as item use limiting)
• Tons of code changes and optimization

1.5

• Added update checker - will notify you in the console on server start
• Added basic potion support! (Looks like it will brew but it just restarts forever)
• Added option for enabling/disabling potion brewing (default: on)
• Changed some debug messages to log to console not server

PLEASE DELETE YOUR CONFIG.YML AND LET A NEW ONE BE CREATED (I'm sorry about all these new configuration being needed, I will try to fix this in the next version)

1.4

• Added support for item data
• Fixed a few poorly written pieces of code
• Started work on Potion support!

PLEASE DELETE YOUR CONFIG.YML AND LET A NEW ONE BE CREATED

1.3

• Added stopping item pickup
• Added option for enabling/disabling item pickup (default: on)
• Added option for enabling/disabling item crafting (default: on)
• Minor bug fixes
• Made a few optimization's

You can actually use noitem.nouse.<whatever> for any block.
e.g. noitem.nouse.5 (wood) and the player would not be able to break anything with wood in their hand.

I am not sure if this is something that needs fixed or not :P