iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2018-12-05T18:09:38Z. The update package is 428.43 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: e9019b0d10585f1fffc9fb0e00682c9f5e8e31b2.zip.