iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-03-29T17:09:55Z. The update package is 735.67 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ced9a91c4a3316239c679bb3052091aa064f6ef0.zip.