iOS 8.1 (build 12B411) is an official Apple over-the-air update for the iPhone 6, released on 2014-10-20T17:59:09Z. The update package is 126.36 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 94cb3f9c9b2d8e1ace89ebc6b5c52ce41d96f637.zip.