Apple has released the fourth beta of iOS 7.1 to registered developers for testing purposes. The update has a build number of 11D5134c and is available via an over-the-air update or through Apple’s developer center website. Check out after the break to find out whats new in iOS 7.1 Beta 4.

A couple of things that beta 4 developers notice is that the Slide to Unlock animation is more “shinier”.

The option to add a contact when entering a phone number has been altered slightly and is now executed by tapping the + sign next to the phone number. Previously, there was a line that said “Add to Contacts.”

Also, in the U.K., there is a new Siri voice on the iPad.

source [macrumors]