iPadOS 10.3 (build 14E277) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-03-27T16:56:52Z. The update package is 534.61 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 77467985604a768000487556f1ef2c8cc4b1bdfd.zip.