iPadOS 12.2 (build 16E5223a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2019-03-11T17:08:35Z. The update package is 651.03 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: f3d2f3af65b417ae4eb20bcfeb70732eabebc329.zip.