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That Mac will run Catalina but is NOT eligible for official upgrade to Big Sur this Fall (for us Americans).
 
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That Mac will run Catalina but is NOT eligible for the official upgrade to Big Sur this Fall (for us Americans).
Precisely. It is officially able to run Catalina, the most current one. You can update it directly from the apple store. But when Big Sur launches, you are likely going to be able to install it on your own through a patch. But it will not be accepted officially for the new system that should launch in a couple of months or less.
 
Thanks all. What would the difference be between official and dosdude?
 
Thanks all. What would the difference be between official and dosdude?

The official is what apple says they support. It will be easier to install (just click a button most of the time). The system is built to work on certain machines. In Big Sur's case, it works on 2013 macbook pro and later.


Here's a list of all compatible macs.

The patched system is basically like installing a new system in an old machine that apple doesn't want you to install on. It might run a bit laggy if you have less than 8Gb of ram and an old processor but should run just fine.

Another important thing is: Both will give you the exact same OS. And you can keep using Catalina for many years from now until Apple drops security updates. then you should probably move to the new one.
 
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