iPadOS 12.2 (build 16E5227a) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2019-03-18T17:06:19Z. The update package is 623.23 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: 8cc6bb863f709929547e7863b1fb8628c0daf2a7.zip.