iPadOS 12.1.1 (build 16C5050a) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2018-11-15T18:04:33Z. The update package is 309.8 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7e8d755bd54eef0482cb377fcb12401bd5bc0dff.zip.