iPadOS 12.2 (build 16E5201e) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2019-02-19T18:06:42Z. The update package is 639.54 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ad7a261246fcefe40aca26918642209a3b450bc8.zip.