Hi folks, as I've been saying, I was able to get involved with FLOSS Manuals and edit the current available book. It has been now renamed to 'Pd-extended', which I think solves the issues and confusion it generated. I also edited the introduction to talk about Pura Data AND Pd-extended, say that Pd-extended has been abandoned and how the book is outdated but maintained for historical purposes. I also mention how many of its content can be applied into Pd Vanilla. We can think about how to improve this even more, but I consider the whole thing as settled.
Check the current book now: https://en.flossmanuals.net/pd-extended/_full/
I already edited the link in puredata.info under 'books about Pd https://puredata.info/docs/BooksAboutPd/' considering both versions (french too).
I will now see what to do about the archived version, if it can be deleted or not...
If anyone still thinks the FLOSS platform is a great and wonderful resource and idea to write yet a new documentation based on the current Vanilla and the old FLOSS Manual in english and other languages, that's cool and great. We can also consider another platform for something like that instead of FLOSS. Let's just coordinate this.
Again, I invite people to collaborate and discuss Pd documentation related stuff in https://github.com/pure-data/pddp
Cheers