iPadOS 12.2 (build 16E5212f) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2019-03-04T18:04:36Z. The update package is 298.32 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: 8082ec41a81260fd4f5c3f5b921c2864e0d9792b.zip.