iPadOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPad Air (China), released on 2018-02-19T21:09:58Z. The update package is 509.24 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ef84b838533b69c3f6f18dea9d22c6d3b2d97392.zip.