How can I update macOS without the internet?

Episode 1599 (39:05)

Ray from Escondido, CA
macOS Mojave

Ray wants to know how he can update macOS without an internet connection? He has more than one computer and doesn't want to download the update more than once. Leo says that you can copy the installer and then use it on the other computer if you do it within an hour or two. It'll be up to date. What happens when a patch has multiple versions? Leo says that sometimes Apple slipstreams a fix into an existing patch, and users end up with two different versions. That can be confusing. But go with the most recent one.

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