It hasn't been more than two weeks after Apple released iOS 6.1 operating system and a new version is out. Recently, there were numerous reports about having cellular performance problems after updating to the new iOS 6.1. Some cellulars went even further, like Vodafone who texted against upgrading to the iOS 6.1 if they have iPhone 4S.
The issues with new iOS 6.1 were sending and receiving texts, connecting to the internet. The iOS 6.1 also had problems with 3G performance. The new update, iOS 6.1.1, is only 23 MB big and "fixes an issue that could affect cellular performance and reliability for iPhone 4S." The update is intended only for iPhone 4S owners and other iOS device users do not need to check for the update as they will not find anything.
Along with new iOS, team Evad3rs posted the evasi0n jailbreak tool for iOS 6.x operating systems. As the new iOS is available, the Evad3rs team have simultaneously released Evasi0n 1.3 jailbreaking tool with iOS 6.1.1 support.