iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-09-12T19:06:29Z. The update package is 1.22 GB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 11565c399341b1b3996925bdcab4f8c25bafe083.zip.