Difference between git-master and git-stage of cmake-docs?

I noticed that besides the release versions, there are also options for git-master and git-stage in the drop-down menu. I wondered what is the difference between these two versions?


master is everything that has been merged. The stage is master plus a set of topics which have been queued for testing to ensure that everything works well together. Also called “merge trains” or “next” in other projects.