Re: Download Previous Version/s of bbPress
Yes you can download old versions through the svn or trac, which will work correctly for anything up to 0.9.0.2 (this technique won’t work on the trunk because of backpress).
I’m not sure why you’d want an old version because many plugins won’t work properly in any any case:
0.7.x: https://trac.bbpress.org/changeset/1606/branches/0.7?old_path=%2F&format=zip
0.8.x https://trac.bbpress.org/changeset/1606/branches/0.8?old_path=%2F&format=zip
0.9.x https://trac.bbpress.org/changeset/1606/branches/0.9?old_path=%2F&format=zip
or use the ZIP link at the bottom of any of these specific versions: https://trac.bbpress.org/browser/tags
