iPadOS 12.2 (build 16E5212f) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2019-03-04T18:04:49Z. The update package is 321.66 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 140027a64ea3a2d8a31c1cd67e20804c8018d02a.zip.