[TUHS] Can Ancient Unix be relicensed?

Hello, all. In 2002, Caldera released Ancient Unix code under Caldera license: <https://www.tuhs.org/Archive/Caldera-license.pdf> based on the four-clause BSD license: <https://spdx.org/licenses/BSD-4-Clause.html> Consequently, it was used by derived projects, such as Traditional Vi: <https://ex-vi.sourceforge.net/> This proect having been abandoned and orphaned since 2005, I wanted to host it on GNU Savanna and there to breath some life into it. Unfortunately, the 4-clause BSD license is incompatible with GPL: <https://www.gnu.org/licenses/license-list.html#OriginalBSD> The incompatibilty is due entirely to the infamous third clause about adverising. Three years prior to Caldera's release of old Unix code, The Berkley Univercity removed this clause, producing the GNU-compatible modified BSD License: <https://opensource.org/license/BSD-3-clause> They published a notice to that effect on their FTP: <ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change> Although it has been taken down[1], copies exist all over the internet, e.g.: <https://raw.githubusercontent.com/abbrev/punix/refs/heads/master/README.Impt.License.Change> That said, is there a chance that the copyright holder of Ancient Will agree to release a similar note regarding everying released under Caldera license? If there is, whom shall I contact about it? It will benefit everybody using Ancient Unix code. ____________________ 1. Why the murrain of FTP servers all over the world?