Some people sure do work quick. Team Pangu has just made available a jailbreak for iOS 8.1; it works on iPhone 6, iPhone 6 Plus and the iPad Air 2, along with older devices.
As Redmond Pie reports, there are a few small caveats: it's currently limited to SSH only and it doesn't (as yet) come with Cydia installed. But, if you like taking the life of your new and shiny device in your own hands, you can go ahead and install it now. It's already available to download for Windows.
Very seriously, going through with this might not be the best idea you ever had. But if you do... good luck! [Redmond Pie - Thanks, Brad!]
Image by Redmond Pie