If you are someone who is still running an older version of iOS on his or her iPhone, iPad and iPod touch and plans to jailbreak the device after updating it to iOS 9, we have got a bad news for you. As of this moment Apple has stopped signing iOS 9.0.2, meaning the latest jailbreakable version of iOS that is supported by Pangu 9 has now been made obsolete. This is something anyone who is remotely familiar with iOS release cycle would have already expected. Apple released iOS 9.1 more than a week ago, and the company is usually quick when it comes to closing the upgrade window for older versions of the operating system.
This is a problem for those who users who are still running iOS 8 or those who wanted to restore their jailbroken device for whatever reason, and then re-jailbreak it. However for rest of the users its not a big problem as with tools like Cydia Impactor, closure of iOS signing window is not that big of a deal anyway. We hope Pangu will add support for iOS 9.1 and upcoming iOS 9.2 to their jailbreak tool soon.