Saurik has released an iOS 8 compatible version of Cydia for manual download following the release of an untethered Pangu jailbreak for iOS 8 - iOS 8.1.
CoolStar, the hacker behind iPhone jailbreaks like Taurine, Electra, and Odyssey, has issued an update on the jailbreak status of iOS 15.2+ on A12+ devices.
If you updated your iPhone 6 or iPhone 6 Plus to iOS 8.0.1 you may be experiencing cellular service or Touch ID issues. Here's the instructions on how to downgrade back to iOS 8.0.