"Tobias Frost" <t...@frost.de> writes: > As far as I understood it BSD-4-clause is only free because the Regents of the > UC dropped the advertising clause in > ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change. So IMHO the > current case is clearly non-free...
Nope. 4-BSDL is free because was always free (= it granted all essential freedoms). By dropping advertising clause Regents of UC changed the licence of software that was *exclusively owned* by UC, but they had no power to re-licence any other work that was covered by 4-clause (or any other variant of) BSDL.