Rovio has released a new update to Angry Birds Seasons that adds a wintry theme to the bird flinging, physics based destruction puzzler.

There are twenty five new levels that unlock every day from now until Christmas, as well as three secret levels that apparently offer specil wintry treats.

The new update also introduces the ice element, which you can expect to be both slippy and slidy, and add all sorts of new mayhem to the already pretty madcap game.

The update, which pushes the game up to version 3.10, is available from the App Store right now for free. So if you fancy some Christmas themed bird on pig action, we'd suggest grabbing it as soon as possible.