iOS 12.0 (build 16A5318d) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-07-03T17:05:40Z. The update package is 449.14 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: f1a2a6fdd3dbc6037ba24e8c6b5dfff305070364.zip.