Testing a new version of OpenCore from USB?

I realised recently that I am still using OpenCore 0.6.1 on my Coffee Lake desktop. I want to update to 0.6.6 but cannot afford to damage my NVRAM or existing 0.6.1 install until I know that the new config works (for both macOS and Win10 booting).

If I test from USB OC 0.6.6 (config based on my existing 0.6.1 config.plist), do you foresee any possibility of it borking my NVRAM/UEFI boot?

submitted by /u/themacmeister
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