Dual licensing becomes very difficult once there is more than one person writing code, and that includes submitting bug fixes. Once this happens you need to tra

Dual licensing becomes very difficult once there is more than one person writing code, and that includes submitting bug fixes. Once this happens you need to track down every contributor and have them sign licensing terms. It's long, difficult, expensive, and you might prefer to rewrite the whole thing again. https://en.wikipedia.org/wiki/Contributor_License_Agreement https://en.wikipedia.org/wiki/Contributor_License_Agreement