iPadOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-06-19T17:04:24Z. The update package is 1.12 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e6360527f8b391b8e1fcfab0493ff13b7afd369d.zip.