iOS 11.2.5 (build 15D5059a) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-01-17T18:04:52Z. The update package is 165.34 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 24fa9baf5337ed4e725dd3e90d6d385ce7b539ae.zip.