A firmware is an IPSW file that contains everything needed to run the core operating system of the respective device. Beta firmwares have also been released, but they require a valid Apple ID to acquire. To check for updates, iTunes/Finder/Apple Configurator/Apple Devices contacts https://s.mzstatic.com/version for iOS/iPod/Apple TV/HomePod mini IPSWs. There are different manifests for macOS IPSWs, bridgeOS IPSWs, and visionOS IPSWs.
Firmware List (by device)
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See Also
External Links
- Firmware manifest for iOS/iPod/Apple TV/HomePod mini IPSWs
- iOS/iPod/Apple TV/HomePod mini IPSWs but on a different host
- bridgeOS manifest
- macOS manifest
- visionOS manifest
- Landing page for purchasing iPhone OS 3.x (for the 1st generation iPod touch)
- Purchase page for iPhone OS 3.x (for the 1st generation iPod touch)