iPadOS 12.0 (build 16A5345f) is an official Apple over-the-air update for the iPad Air (China), released on 2018-08-06T17:06:04Z. The update package is 1.14 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: bea14b23aafcf185667b9a83a5d06efab1a80257.zip.