After releasing several different patches for assorted bugs in iOS 6.1, Apple (AAPL) has now gotten around to releasing a second beta for iOS 6.1.3, the operating system that had previously been called iOS 6.1.1. 9to5Mac says that the new beta is an updated version of the first iOS 6.1.1 beta, which was notable for its enhancement of iOS Maps for Japanese users, including turn-by-turn navigation improvements such as a preference for highways over smaller roads and notifications for upcoming toll roads.