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When Apple releases a major update like Catalina, there are 3 main options I'm aware of to update my Mac:

1. Use Disk Utility to eraae boot disk, install the new OS over the internet, and manually reinstall apps and data.
2. Use Disk Utility to eraae boot disk, install the new OS over the internet, and restore apps and data from a Time Machine backup.
3. Just apply the update over the internet in place.

Are there any reasons I would want to do the extra work involved in either 1 or 2?
02-27-2020, 07:14 PM
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