iOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPhone 6, released on 2018-10-30T17:16:54Z. The update package is 373.32 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 700a186ad7eb1b7adfa18f0c265587bc70bca1fe.zip.