For now please refere to Terminology, Power and Oppressive Language.
The default branch of our repositories is called main.
Master-slaveis an oppressive metaphor that will and should never become fully detached from history. 1
Even though there technically is no master-slave relationship in a git repository, the word can still be understood in this context and since main is just as good a description for our purposes, we decided to name it that way hoping people will feel more confortable this way.
In case it bothers no one, it will at least encourage reflection on some established technical terms & metaphors and their roots.
Our general code of conduct (which also applies to our GitHub repositories) can be found here.