When you update your Cubase 11 license to Cubase 12, the Cubase 11 license will remain on the USB eLicenser and a new Cubase 12 license will be granted in your Steinberg account. You will still be able use the USB eLicenser with the C11 license to start your legacy Cubase SX. The C11 license on the USB eLicenser will just get a tag that it has already been used to update to Cubase 12. But that’s it.
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