iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-07-09T17:06:50Z. The update package is 1.24 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: da0f5032613212a234af09b0cd66fea3af530662.zip.