iPadOS 12.1 (build 16B5077c) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-10-09T17:05:29Z. The update package is 404.58 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f623373de26fbc014ee2bce09945f9ba7975f0dd.zip.