iPadOS 11.4.1 (build 15G5063b) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-06-11T17:21:37Z. The update package is 206.76 MB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9322e97fd3648a7f7be5d6b3bc88bd463416dc8b.zip.