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What are Legacy System Extensions and do I need it on my MAC running Catalina?

What are Legacy System Extensions and do I need it on my MAC running Catalina?

MacBook Air 13″, macOS 10.15

Posted on Jul 2, 2020 9:15 AM

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Question marked as Top-ranking reply

Posted on Jul 2, 2020 9:39 AM

The next major release of macOS will not allow third party kernel extensions. It's just warning that any third party software you're using that installs such extensions will not work in macOS 11.


All vendors who now user kernel extensions will have to use a different method to load items at startup.


https://support.apple.com/en-us/HT210999


The message should have mentioned the name of the vendor the extension is from. But in short, all third party extensions are in the following location, along with ten default extensions installed with the OS.


/Library/Extensions


For now, you don't need to do anything.

1 reply
Question marked as Top-ranking reply

Jul 2, 2020 9:39 AM in response to library_goddess

The next major release of macOS will not allow third party kernel extensions. It's just warning that any third party software you're using that installs such extensions will not work in macOS 11.


All vendors who now user kernel extensions will have to use a different method to load items at startup.


https://support.apple.com/en-us/HT210999


The message should have mentioned the name of the vendor the extension is from. But in short, all third party extensions are in the following location, along with ten default extensions installed with the OS.


/Library/Extensions


For now, you don't need to do anything.

What are Legacy System Extensions and do I need it on my MAC running Catalina?

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