Perhaps you've been holding out on updating to iOS 8.1 until there's a "stable" jailbreak and a stable version of Cydia. Maybe you're like Sebastien and Cody, and just want to make sure that things run smoothly enough, and that the compelling tweaks are updated for iOS 8 before taking the leap.
Throw all of that logic out of the window. If you're an iOS 7.x jailbreak holdover, it's time to stop holding out and just update. iOS 8.1.1 is now in beta, and it has been confirmed to kill Pangu's iOS 8.x jailbreak. Even if you don't want to jailbreak right now, it's still a good idea to go ahead and upgrade to iOS 8.1, so that when the jailbreak does meet your needs, you can still jailbreak on iOS 8.