Blender-Manual is Blender's official project to provide the user with a clear, concise and up-to-date description of Blender's functioning in the current version.
Complementary projects are:
There are some left over TODOs from the MediaWiki migration and sections on the process of being reviewed. See also the current open tasks.
See ./manual/about/install/ for building the manual
and the Getting Started section
for an explanation on the full work-flow and other tips.