I also have ubuntu-docs version 10.10.4ubuntu0.1 installed, and am using 10.10, and I see the correct version mentioned in "About Ubuntu". I am unsure why my experience differs from Nicolas'.
I also have ubuntu-docs version 10.10.4ubuntu0.1 installed, and am using 10.10, and I see the correct version mentioned in "About Ubuntu". I am unsure why my experience differs from Nicolas'.