Hacker group PP has released a tool to perform jailbreak iOS 8.4. According to preliminary information, a software-only solution for Windows users is the authorized version of the TaiG jailbreak released for iOS 8.3.
Utility PP is compatible with all iPhones starting from iPhone 4s to iPhone 6 Plus, with all tablets except the iPad first generation and iPod touch 5G. The main requirements for a successful Chinese hacking has indicated the presence of a computer with Windows, Internet access and the latest version of iTunes.
Download PP25 at this link.