We have the statement from Berkeley https://www.freebsd.org/copyright/license/ actually from William Hoskins, then the Director, Office of Technology Licensing University of California, Berkeley (who passed away in 2011 https://www.eastbaytimes.com/obituaries/william-a-hoskins/ )
We also have another statement from @dspinellis at https://www.spinellis.gr/blog/20250520/index.html
We have the statement from Berkeley https://www.freebsd.org/copyright/license/ actually from William Hoskins, then the Director, Office of Technology Licensing University of California, Berkeley (who passed away in 2011 https://www.eastbaytimes.com/obituaries/william-a-hoskins/ )
We also have another statement from @dspinellis at https://www.spinellis.gr/blog/20250520/index.html