After months of rumors and beta releases, earlier today Apple finally released iOS 7.1 for iPhone, iPad and iPod touch. The update brings several user interface tweaks and activates the CarPlay feature. It also brings bug fixes and performance improvements. One of the exploits that it plugs is the one used by the evasi0n jailbreak tool, as confirmed by legendary iOS hacker @MuscleNerd. The exploit existed in iOS 7.0 and all subsequent incremental updates, but since it has been plugged in the latest release, that means untethered iOS 7.1 jailbreak is not possible, at least not immediately.
It was feared that Apple would finally kill the exploit that evasi0n uses with iOS 7.1, and it has. Incremental updates released over the past few months didn’t deal with it anyway, so all eyes were on the major update, which has delivered. This means that all users who upgrade to iOS 7.1 will lose their current jailbreak, they won’t be able to downgrade to iOS 7.0.6, so those who update once will be stuck at iOS 7.1 without a jailbreak.
We can not say for sure right now how long it will take for an iOS 7.1 jailbreak to be developed. Finding exploits takes time, its quite possible that the search and development process may end up taking a couple of months. Word of advice for anyone considering pulling the trigger on this update, don’t do it if you want to retain the jailbreak.