iOS 12.0 (build 16A5364a) is an official Apple over-the-air update for the iPhone 6+, released on 2018-08-23T20:08:01Z. The update package is 41.98 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: b475c481d4303a67ca7bf26bcc8d24ecfe180f8c.zip.