The latest version of bbPress is 2.6.4, released on January 30, 2020, works best with WordPress 5.3 or later.
bbPress 2.6.4 – Download .zip
To contribute to bbPress development, check-out the most recent revision from our Subversion repository.
svn co https://bbpress.svn.wordpress.org/trunk/
We use Trac for reporting bugs, code history, and project management. Read more at our development page.
Download the latest development version, which is exactly what we run here at bbpress.org:
bbPress 2.7 Alpha – Download .zip
For older versions of bbPress (before 2.0) visit the legacy downloads page.