Bukkit

v1.4.6a:

• Fix for 1.4.6-R0.1
• Removed unsafe-storage as bukkit now also stores meta data with invalid enchants and display name.
  • Restoring old (unsafe) inventories should still work (so no loss)

developed for:

• Java 6 (JRE 1.5 may not supported in that build)
• CraftBukkit 1.4.6-R0.1
• WorldEdit 5.4.5
• WorldGuard 5.6.6-SNAPSHOT

Even if the plugin is marked as release now (to prevent people from still downloading the very outdated versions), it hasn't got more testing then the current beta releases (meaning none).

This plugin isn't any longer actively developed

See Project Overview for more info.

• blocking all signs and chests isn't a good solution, but the minecraft-server lags the possibilities to intercept inventory-modifying for now
• breaking needed blocks lets drop attached ladders/doors/etc.