iPadOS 12.2 (build 16E5227a) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2019-03-18T17:06:26Z. The update package is 48.56 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2ddb901e3b53d0a9f33866bb3a82c92661586a07.zip.