Apple seeded the second beta of iOS 8.3 to developers, two weeks after seeding the first iOS 8.3 beta

The initial iOS 8.3 beta came as a surprise because iOS 8.2 with the WatchKit SDK also remains in testing. The beta is available through the iOS Developer Center. It includes Xcode 6.3 and a new version of Apple's programming language, Swift. Apple has also released a new Apple TV beta for third-generation Apple TVs.

  Apple Seeds Second iOS 8.3 Beta to Developers