iPadOS 16.6.1 (build 20G81) is an official Apple over-the-air update for the iPad Air 4 (WiFi), released on 2023-09-18T17:21:08Z. The update package is 3.32 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f28eedc36b4e1f0ab0b5b1ceb21f9baf497f312a.zip.