iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-12-05T18:07:45Z. The update package is 1.16 GB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f91410cf6b11c14b24664e9e4452a29cd299dce3.zip.