Bukkit

0.1

• ColoredPlayerNames first released

0.2

• Reconnecting players are now sure to get a different color than they had before logging in

0.3

• Connecting players will now have different colors than those already on the server
• MCStats support
• Updater support

0.4

• Permissions

1.0

• Configurable colors and weights

1.1

• /changecolor command

1.2

• /changecolor now can be used to change your name to a specific color.

There will probably be compatibility issues with any plugin that uses the Scoreboard system. I use this system to color names above heads.