iPadOS 11.4.1 (build 15G5072a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-06-18T17:05:27Z. The update package is 151.52 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: 544fd9574f3100d42977ead49c2780ae39ba5035.zip.