FWIW: https://copyleft.org/guide/comprehensive-gpl-guidech8.html#x11-540007.4 https://copyleft.org/guide/comprehensive-gpl-guidech8.html#x... which was added w

FWIW: https://copyleft.org/guide/comprehensive-gpl-guidech8.html#x11-540007.4 https://copyleft.org/guide/comprehensive-gpl-guidech8.html#x... which was added when a bunch of GPLv2 contributors mused about revoking their contributions to Linux rather than comply with the project's new code of conduct: https://sfconservancy.org/news/2018/sep/26/GPLv2-irrevocability/ https://sfconservancy.org/news/2018/sep/26/GPLv2-irrevocabil... > The contributor is, of course, free to make no future grants, but they can’t withdraw past grants. The Guide's new section also explains how promissory estoppel is an additional legal safeguard ensuring the withdrawal of permission will not disrupt the use of those who rely on the software.