iPadOS 12.4.7 (build 16G192) is an official Apple over-the-air update for the iPad Air (China), released on 2020-05-20T17:06:51Z. The update package is 1.23 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6c3ac868df5029ed9e78cb5f9ad5d3e76ad1ed8e.zip.