Angry Birds Seasons get an update which includes the new levels and introduced different physics to the gameplay. This is major update for Summer season and the game scenario takes place in the imaginary water kingdom of Piglantis.
The news physics of the game involve some underwater action which is somewhat similar to the one that we have seen in Angry Birds Space. The update is more notable than before because of this new physics to the gameplay. You can launch birds underwater and that changes the way they behave. Also, pigs can be annihilated by sinking them in water.