2 new biome related commands:
Shows in chat what biome the targeted block is in. If no block is targeted, the command will target the user's position.
/biomeset [<position>] <biome name>
Changes the biome of the targeted chunk. If no block is targeted, the command will target the chunk the user is in. If no biome name is specified, the command will fail.
Both commands require cheats to be enabled for use.
If at first you don't succeed, blame your parents.