iPadOS 12.2 (build 16E5212f) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2019-03-04T18:04:33Z. The update package is 648.88 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: 1c139c46d3cae80f52279f39525377b700d87007.zip.