iOS 13.4 (build 17E5233g) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2020-02-19T18:24:46Z. The update package is 889.97 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b1c7cfdf5e067b3427316f83619923d34da5e18f.zip.