As always, we will update our list of new apps and updates hitting the App Store and Mac App Store throughout the day:

Angry Birds Seasons version 2.5.0: New content for Rovio’s “Seasons” edition of Angry Birds rolled out today (including the HD version). The update includes 20 new schoolyard levels, bonus levels, a new pink bird, and new theme music for the playground levels.

Shazam version 5.0.6: All of the versions of the song recognition app Shazam were updated today with an improved recognition rate and faster application startup time. The update also went to the $5.99 RED edition.

Dunkin’ Donuts version 1.0: Dunkin’ Donuts officially announced the release of its first mobile app today that allows customers to pay from the app using a virtual barcode-based DD card scanned by the cashier. Other features include a store locator, nutritional information for items on the menu, the ability to send virtual DD cards, and Facebook and Twitter integration.

Sketch version 2.1: The Mac App Store app described as a graphic “designer’s dream toolbox” (Apple Design Award Winner, 2012), was updated today with graphics for Retina displays, improved rendering speed and quality for inner glows and shadows, and “improved accuracy of working with small layers.” The app is also $20 off this week.

Showyou version 3.4: Showyou (App Store Rewind 2011, Best Social Networking app on the iPad winner) aggregates “the best videos on the web, selected by your friends and people you care about, and puts them in the palm of your hand,” and its latest version includes bug fixes, full iPad Retina support, and “Send Video and Thank support on iPad.”

In addition—Square announced today that it would now allow merchants to forgo swipe fees and pay a monthly fee instead. Get all the details at BusinessWeek.