The iPhone Dev-Team has announced RedSn0w 0.9.15b1 which brings numerous new features including the ability to restore to older firmware not being signed by Apple.
Apple has released iOS 8.1.3, which means the restore signing window for iOS 8.1.2 will close any day now. If you currently are not on iOS 8.1.2, be sure to restore as soon as possible in order to jailbreak your iPhone, iPad or iPod Touch!