There had actually been a lot of discussion tossed around here and there about updating this when I was staffing, and yes it really does need updating. Though there are plenty of tutorials, having a regularly updated Feral Heart manual is something that needs to be worked on.
The manual would need to include everything that is new with Feral Heart, such as the new skin and info of what the Manual is updated to. Such as; Updated for Patch 1.15.
Who knows, this could already be in the making as the site has been going through a lot of maintenance. Nevertheless, I think that it's release would be more appropriate if it came after the forum maintenance is complete. Then everything would be released at once. Even with a tutorial of the User Panel, as I don't think the forum would look like this permanently.
Nice thing you did in terms for bringing this up. It really is old and does need attention.
Well I don't think the game has changed drastically enough to change it entirely, but sure, a few little tweaks might be good in the long run.