iPadOS 11.2.1 (build 15C153) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2017-12-13T18:05:00Z. The update package is 327.33 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 926a0651c47dec355d03378dc923b59ead08088b.zip.