iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-01-08T18:12:39Z. The update package is 64.79 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 913456c218bfe557d69fe61abd95e536a9659fc7.zip.