iPadOS 12.2 (build 16E5223a) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2019-03-11T17:08:38Z. The update package is 211.19 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: 9b219437b966f0c8f9a14f1f4f5d0454ad405166.zip.