If you haven't downloaded and installed iOS 8.3 yet, you might want to hold off for a bit first. Apple says the update packs that new emoji keyboard and a slew of performance fixes, but multiple reports on Reddit, Twitter and Apple's own support forums claim that the new software build basically breaks TouchID support for iTunes and App Store purchases. It's not yet clear how widespread the issue is -- Twitter in particular is light on the moaning today -- but we've just installed iOS 8.3 on a pair of iPhone 6s on different carriers and now neither of them work the way they're supposed to.

http://www.engadget.com/2015/04/09/i...-id-purchases/