iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-09-12T19:06:58Z. The update package is 1.31 GB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 293a7dfb9169e69d5dd17eded151841f390c7924.zip.