iPadOS 12.1.1 (build 16C5043b) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2018-11-07T21:08:20Z. The update package is 223.42 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0c589a1f24536c0d99ac45df6ad795205de9a3f2.zip.