

Finding and downloading an old version of macOS If your Mac appears in the list of supported models, then you should be able to downgrade macOS that version. Now check Apple’s technical specification pages for the version of macOS you want to install In the Overview section, you’ll see your Mac’s model name and year of releaseĤ. Click the I logo in the top left of macOSģ.
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How to check if your Mac can run a particular OS X version:ġ. There are ways to get around that, but it’s not usually a good idea, because your Mac will usually be slower as a result. That’s because Apple periodically drops support for older Macs that can’t run later OS X releases effectively. You’re more likely to run into problems when you try to run a new version on an older Mac. In general, if you want to run an older version of macOS, it should work.

On the face of it, running old versions of macOS on your Mac seems counterproductive.
