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I'm replacing my aging 2009 iMac with a refurb 2019 27-incher. Does anyone have advice on the easiest way to move to the new machine? Aside from the death of 32-bit, are there any "gotchas" I should look out for? Thanks.
Assuming you have enough RAM (4 GB or more, cheap to upgrade), why not use
and try to get it to Catalina. Sure, you might not get Handoff, Sidecar, etc. Worked great on a MacBook Pro 13-inch that was otherwise stuck with High Sierra.

Make sure you follow the instructions about updating the BIOS for APFS first.
 


Following up on my previous post, I have an old MacBook (white polycarbonate) that can theoretically be updated to macOS 10.13 but is still at 10.12. If I do decide to update it at some point, where would I find a macOS 10.13 installer? I tried looking on the App Store, and there are no macOS installers prior to Catalina.
 


Following up on my previous post, I have an old MacBook (white polycarbonate) that can theoretically be updated to macOS 10.13 but is still at 10.12. If I do decide to update it at some point, where would I find a macOS 10.13 installer? I tried looking on the App Store, and there are no macOS installers prior to Catalina.
From Apple's "special" High Sierra page. Be sure to check out my FAQ before you proceed.
 


Since my last post, I decided to go ahead and upgrade my white polycarbonate MacBook 6,1. First I upgraded to High Sierra to get the latest firmware and enable booting from an APFS volume. That is the last version of macOS that is officially supported. Then I downloaded MacOS Mojave Patcher and installed Mojave. So far, so good. This is a spare computer, so if something goes wrong with the patched installation, it's no big deal.
 


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