iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-07-09T17:08:10Z. The update package is 1.25 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c049d0a3851cff9cc0ba9db26b7d731639008dbd.zip.