Wouldn&#x27;t it prevent people writing GPL2 software from using it, as the anti-tivoization would not be GPL2 no additional restrictions clause friendly?  See the GPL FAQ compatibility chart [1], bottom left.  The case I&#x27;m thinking of is where if you fork somebody else&#x27;s GPL2 project and don&#x27;t expect to be able to ask them to relicense (e.g. code from a company that no longer exists).<p>[1]: <a href="https:&#x2F;&#x2F;www.gnu.org&#x2F;licenses&#x2F;gpl-faq.html#gpl-compat-matrix" rel="nofollow">https:&#x2F;&#x2F;www.gnu.org&#x2F;licenses&#x2F;gpl-faq.html#gpl-compat-matrix</a>