![]() If you decide to go ahead with the installation, make sure that you make a Time Machine backup first. If you decide that an unsupported version of macOS isn't for you, you'll need to source the right disk image, create an install medium, and reinstall macOS from scratch to fix it. Before you update a Mac, we recommend that you check the compatibility with the latest macOS version to make sure you update the latest Mac version onto a compatible device. You might also lose wireless networking, but this can likely be fixed with a few of Patched Sur's post-install patches. Check for app updates in the App Store Checking compatibility. For instance, consider a simple task, simply minimizing a Safari window: ![]() "No graphics acceleration" is a tremendous, almost exponential, slowdown that SHOULD NOT be ignored. ![]() This is catastrophic for performance, as documented in the Patched Sur Supported Macs document: You might have issues with discreet GPU switching, which means that some Mac models won't be able to use their more powerful graphics chips after the update.
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