I'm well aware and have contributed to OpenTofu project in a small manner. I hope you'll forgive me slightly misspeaking - any version of terraform before that

I'm well aware and have contributed to OpenTofu project in a small manner. I hope you'll forgive me slightly misspeaking - any version of terraform before that license change is OSS. It is, however, perfectly free to use and most companies I've worked with are hard-pinned on a particular version of terraform and rarely on the bleeding edge.