If you are eager to jailbreak your newly iPhone 7 or another iPhone, you just made a huge mistake if you did not update / restore your device to iOS 10.1 or iOS 10.1.1 during this week. Today, Apple closed the signing window for iOS 10.1 and iOS 10.1.1, making it impossible to either downgrade or upgrade from iOS 9 to that particular version.

Usually, once a new iOS update is released, Apple stop signing older versions to encourage people to update their devices to the latest version. Many people refrain from updating in order to retain their jailbreak or have the hope of a jailbreak being released for their current version.