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 650.17 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b745ce70145bfb9bb86a0bc044da857eb7c2277.zip.