iPadOS 12.1 (build 16B5084a) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-10-15T17:02:51Z. The update package is 329.52 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: 267233f2e076e91a858ae193e2720bca8aee23c5.zip.