![]() ![]() ![]() Using this tutorial, you can revert your Mac to an earlier OS release. If you find that newer releases run too slowly on your hardware after trying this, you may need to revert to an older version. There are methods, such as Patched Sur, that will allow you to update your Mac to a newer version of macOS than it can natively run. If you click the Apple logo in the upper-left corner and then select "About This Mac," you'll be able to see the model and release year of your Mac. The best place to find out what came with your Mac is Apple Support, where you can also look up your specific model. Whichever version of macOS was installed on your Mac when you bought it is the "earliest" version for which it will receive security and software updates. The x86 64 instruction set is used by older Intel chips and is not supported by the ARM instruction set used by newer Apple Silicon chips. Macs with an Apple Silicon chip, such as the M1, are incompatible with older versions of macOS (released before Big Sur, expected in 2020). Although it's well-known that newer versions of macOS frequently remove support for older hardware, it's also true that newer Mac models and older software often fail to function properly together. Please note that not all Mac hardware is compatible with all macOS and Mac OS X versions. The procedure is simple, but it's not so simple to get your hands on an older version of macOS. ![]() Got an old Mac and want to reinstall macOS? Maybe you want to roll back your Mac to an earlier version of macOS than the one you currently have installed?
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