I don’t think so. I’m sure I would have heard something about that for work related reasons. That would be quite a problem for the kubernetes ecosystem since nginx is so widely used there as an ingress controller.
The nginx website still lists a “bsd-like license” as what the source code is released under: https://nginx.org/LICENSE
Related: a list and explanation of variable naming conventions https://www.pluralsight.com/blog/software-development/programming-naming-conventions-explained