Unsurprisingly, a team of Chinese hackers have released an untethered jailbreak for iOS 7.1 and iOS 7.1.1. The jailbreak tool is currently available for Windows but works on every iOS devices. The tool is compatible with iPhone 5s, iPhone 5c, iPhone 4S, iPad Air, iPad 4, iPad 3, iPad 2, iPad mini, Retina iPad mini and iPod touch 5G. Many iOS users have posted on Reddit that the tool works successfully.
Source: https://thehackernews.com/2014/06/how-to-jailbreak-ios-71-and-711.html