Blizzard Entertainment has issued a new patch for StarCraft II: Wings of Liberty, updating this real time strategy sequel to v1.2.0.

Included in the many modifications and additions is the ability for players to join others in both public and private channels. There's also a new Master League, as well as race balances and StarCraft II Editor improvements.

You can view the entire changelog here, and those that wish to update their client manually can do so from GP Downloads (275MB).