iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2019-01-22T18:04:32Z. The update package is 1.57 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 25f74e3641ec17faec9af6380eed1ccd4276a54b.zip.