On July's 24th, @PanguTeam announced their Jailbreak for iOS 9.x. Few hours after, PP25Assistant released a Chinese tool for Windows able to achieve a full iOS 9.x Jailbreak.
This is an optional step which allows the jailbreak to run automatically when your device is booted. This means that you won't have to re-jailbreak through rerunning the kok3shi9 app after your device is turned off. You will have to use Cydia to insta
Once installed, the jailbreak app will exploit the iOS firmware and install Cydia as the default package manager on your device. With Cydia, you can add new repositories and download tweaks and apps for your iPhone or iPad.