iPadOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPad 6 (WiFi), released on 2020-03-18T17:21:57Z. The update package is 2.74 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 28c406772506ef0bd9143a0153f1f48e321e74c1.zip.