iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2018-12-05T18:08:36Z. The update package is 295.11 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: 6cdefd6720ddb9623ea8cea938195e463a75bdb3.zip.