alt Hacker NewsGive it a couple days for 18.7.3 to show up (I’m trying this myself) or download the ipsw for ios 18.7.3 and use a computer to install.
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layer8 • last Sunday at 10:23 PM
Apple doesn’t provide IPSWs once the next major version has launched. OTA is the only option.
void-pointer • last Sunday at 4:49 PM
You can also join the iOS 18 public beta to get the update.
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I don't believe an IPSW for 18.7.3 was released except for devices that couldn't upgrade to iOS 26. I believe this is done to prevent downgrades.