Bukkit

• V1.4: Fixed a bug where you could destroy the block holding a sign and get an error
• V1.3.2: Compiled with bukkit 1.8.3, no major changes
• V1.3.1: Fixed a stupid grammar error and changed some messages as well (not important)
• V1.3: Added full customization to the signs and fixed more bugs
• V1.1: Fixed bug where a "null" would appear in config

None that I know of, please tell me if you find any.