Current status: no more updates of the testing patches, from 2017-04-26 on (read https://grsecurity.net/passing_the_baton.php and https://grsecurity.net/passing_the_baton_faq.php)
Yet another collection of the public grsecurity.net patches. For needs of openSUSE-gardened.
grsecurity_patches/ -- historical and recent patches
Credits: started off git repository https://github.com/renaudallard/grsecurity_patches
pax_patches/ -- PaX patchset, incomplete