The iOS 6.1.3 was supposed to solve and prevent problems now it looks like it is causing problems. The security hole that allowed crooks to access contacts through emergency calling has been fixed, there are reports of battery drain, email,Wi-Fi and other issues.
We looked through support forums and forum members as well as Apple have supplied some fixes for some of the problems. For some the battery drain issue is connected to corrupted connections to email and iCloud. Apple also suggested resetting Wi-Fi if after the iOS 6.3.1 update for iPhone 3Gs, 4/S, 5 and iPad 2-4.
