iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-12-05T18:07:57Z. The update package is 1.19 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4608c849b5b2835b47fe5443524ab4a4567894e9.zip.