iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2018-10-30T17:06:16Z. The update package is 386.03 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: a8676823acd58367cb2494a5b6ebe26abfc31296.zip.