iPadOS 12.0 (build 16A5318d) is an official Apple over-the-air update for the iPad Air (China), released on 2018-07-03T17:05:05Z. The update package is 409.25 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: 0a35b8368da49aeb1b045d33ef353badd7c2e165.zip.