From the "tmux-users" mailing list: > Will pull requests on GitHub now be allowed as a means of contributing patches? > No, patches still need to come by email to me [Nicholas Marriott] or the ML. I wonder, what's the main reason behind it? What's wrong with Github PRs?
Generally there's a need to clean it up a bit and bang on it with some testing. I suppose that bigger projects can just bounce that back to the submitter to fix up and resubmit, but if a smaller project wants to encourage contributions the maintainers really need to do that.
There's also the point that projects with established mailing lists where patches are discussed probably don't want to move to github's web UI for those discussions.