[Inkscape-docs] status of the Inkscape manual?

The Inkscape manual (http://en.flossmanuals.net/inkscape) is very nicely done, but I see no indication of the version it covers. Also, the "Published" date (2011-10-05) was quite a while back.

Can anyone tell me the status of this document, where and how to submit contributions (eg, errata), etc?

-r