iOS 9.9.11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 6, released on 2018-01-23T18:30:26Z. The update package is 1.54 GB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7f14bdb7af4462ed58844fb67e028a68278dbefa.zip.