iOS 12.0 (build 16A5354b) is an official Apple over-the-air update for the iPhone 6+, released on 2018-08-13T17:03:56Z. The update package is 1.25 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: d6ed41e9bf0ce4d3fa00c1bf3c6240d01abcda22.zip.