iOS 9.9.11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 6, released on 2018-01-23T18:30:27Z. The update package is 1.39 GB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 349987b88506b70efc8a5118ac6fc53e56d8d4d7.zip.