Apple released iOS 8.1.3 for compatible device few moments ago. You can directly upgrade iOS 8.1.3 on your device at Settings > General > Software update or you can download iOS8.1.3 for later update by connecting your device to the iTunes. iOS 8.1.3 has many error fixes and enhancements but no one has confirmed of jailbreak possibility f iOS8.1.3. It’s good to stay away from upgrading for a while if you need jailbroken apps.
jailbreak iOS8.1.3