iOS 12.0 (build 16A5327f) is an official Apple over-the-air update for the iPhone 6+, released on 2018-07-17T17:06:13Z. The update package is 1.2 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9470992dd427f6024bfba9060cc767f3db409d2c.zip.