Full list of copyright holders:

Alex Cornejo <acornejo@gmail.com>
Amit Saha <amitsaha.in@gmail.com>
Bent Cardan <bent@nothingsatisfies.com> *
Chris Grieger <chris@scolp.de>
Constantine Tarasenkov <constantine@protonmail.com> *
Danny Thomas <d.thomas@its.uq.edu.au>
Jim Jagielski <jimjag@gmail.com> *
Jim Schimpf <jim.schimpf@gmail.com>
John E. Haque <j.e.haque@gmail.com> *
Luca Barbato <luca.barbato@gmail.com>
Martin Lucina <martin@lucina.net>
Martin Sustrik <sustrik@250bpm.com>
Michael Gehring <mg@ebfe.org> *
Nick Desaulniers <nick@mozilla.com>
Nir Soffer <nsoffer@redhat.com> *
Paul Banks <banks@banksdesigns.co.uk>
Paulo Faria <paulo@zewo.io>
Yue Xu <red_angelx@qq.com>

* Future patches by this author are submitted under MIT/X11 license

Coprights for DNS resolution library in dns subdirectory are held by:

William Ahern <william@25thandClement.com>
