iPadOS 11.3 (build 15E5178f) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-02-06T18:21:06Z. The update package is 292.89 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1fd61f4ac7d9347880735110737cddf95c39a9fb.zip.