Juan,
thanks for changing this.
A pragmatic proposal regarding outdated documentation: Just add a small section in the header of those documents stating that they are outdated, and if possible add some hints there what aspects of the document are outdated. In my opinion, the outdated documents are still valuable, since some aspects are still valid.
I know how difficult it is to write documentation of the quality that you are writing. So thanks a lot for what you are doing!
Georg