Bukkit

v2.2

• Changed colours on the location messages. Now if a player is op, the red op colour won't reset the rest of the message to white.
• World names are also in red now.
• Modified 'permission denied' message slightly to tell the console that someone was denied access to the command.
• Added changelog to the source code as well, so I don't forget what I'm doing :P

v2.1

• '/whereis' on its own now shows version number as well as usage info.

v2.0

• Now has permission node (whereis.allow) and therefore requires Vault. Players have this node by default.
• Now shows what world a player is in, if they're in a different world. (player command only)

v1.1

• Recompiled in Java 6. Is now compatible with 6/7.

v1.0

• /whereis PLAYERNAME returns their coordinates.
• No restrictions as yet. Permissions will be in the next full release.
• Not multi-world. This will also be in the next full release.

Depends on Vault