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Any Mac(s) can serve as a caching server for Apple's software updates on the local network. It's built into the OS, you just need to turn it on. https://suppo

Any Mac(s) can serve as a caching server for Apple's software updates on the local network. It's built into the OS, you just need to turn it on. https://support.apple.com/guide/mac-help/what-is-content-caching-on-mac-mchl9388ba1b/mac https://support.apple.com/guide/mac-help/what-is-content-cac...

ThePowerOfFuet 5y ago
Oftentimes that Mac itself will have its own update to download, as macOS releases typically happen in lockstep with iOS and iPadOS.
- GeekyBear 5y ago
  Regardless, only one device of that type on your network will have to wait for the update to come in over your WAN link. All the devices after that will use the local copy of the update.
  - ThePowerOfFuet 5y ago
    There's only a savings if there are multiples of the exact same model.
    - GeekyBear 5y ago
      Not so. It doesn't matter if you have a six year old OG iPhone SE or the newest model. They are all grabbing the same update.
      - ThePowerOfFuet 5y ago
        No, OTA updates are deltas which are model- and version-specific [0] (which makes them A LOT smaller), and full IPSW restores are model-specific. [0]: https://www.theiphonewiki.com/wiki/OTA_Updates https://www.theiphonewiki.com/wiki/OTA_Updates