iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-03-29T17:09:22Z. The update package is 1.27 GB. This is a delta (partial) update that requires 10.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 222edf4cb4d7937571eb3e5684f2b2f38a46db8a.zip.