The latest update contains bug fixes and improvements, mainly on the phone's security where you can bypass the lock code. There's also improvement to maps in Japan. I'm upgrading my phone now. Has anyone here updated their iOS yet? I had problems with the 6.1.2 on the wifi connection. It just drops and sometimes won't connect me, which was frustrating. So many users reported the same problem too. I hope there won't be anymore issues with this upgrade.

See More: Apple iOS 6.1.3 Software Update