iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-12-05T18:08:10Z. The update package is 382.86 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1c1fbec81e39ff93089efd9f1a37cae76089c99c.zip.