iPadOS 12.0 (build 16A5365b) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-08-27T17:02:26Z. The update package is 1.17 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: 082230863fd17036584a9ed48c8e60f7fcb431cc.zip.