Versions of the documentation
Every release of the game has its documentation, published under its minor version: 0.77 is the latest patch of 0.77 (a patch release replaces its minor's pages). next is develop's, what the next release will be. The latest release and the ten minors before it stay published; /latest/ is always the latest release's.
The version switcher in the nav bar opens the page you are on in another version. The version the platform runs now is marked live: it can be behind the latest release, since a release does not update the platform by itself.
The list of versions did not load.
How the documentation is published: Releasing.