iOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-06-19T17:04:58Z. The update package is 566.84 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: 9eefb0317444198d1ed6c3eddc5a909a522618bc.zip.