bbPress.org

Ah I see it was even pulled from the download page, which bothers me of course.

It’s always available via trac too:

https://trac.bbpress.org/changeset//tags/0.9.0.5?old_path=%2F&format=zip

or the branch might have a few fixes someday in the future

https://trac.bbpress.org/changeset//branches/0.9?old_path=%2F&format=zip