iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2018-10-30T17:06:14Z. The update package is 1.25 GB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03dc9f150f00a1ee23fd99b8b38381ac0880db59.zip.