Apple’s iOS 8.4 beta has been jailbroken by a well-known hacker. Stefan Esser, commonly known as “i0n1c” in the jailbreak community, has also shared a video proof-of-concept. The hacker shows off the Apple Watch companion app, the newly redesigned Emoji keyboard as well, while giving the video demonstration. But don’t expect a public iOS jailbreak tool from i0N1c, but neither he’ll. Neither he will.
Source: https://thehackernews.com/2015/04/iOS-8.4-jailbreak-tool.html