iPadOS 9.9.11.3.1 (build 15E302) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-04-24T17:07:46Z. The update package is 1.37 GB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 13c9ef5e0fc686bdd7342b905706901fba045e1e.zip.