How to download old versions of macOS

There are a few reasons why you might want to download and install an old version of macOS or Mac OS X. Perhaps you’re relying on software you have discovered doesn’t work properly in the latest version. Perhaps your Mac has run slowly ever since you updated Just note: if you were hoping to run Catalina, Mojave, or a version of macOS older than Big Sur on an M1- or later Mac, that’s not possible. Read More