The files for release candidate 2 can be downloaded from https://sourceforge.net/project/showfiles.php?group_id=64258&package_id=312463&release_id=682747
For more information about Tiki 3.0, see http://doc.tikiwiki.org/TikiWiki+3.0
TIki 3.0 second and final release candidate
Nelson Ko -The second and final release candidate for Tiki 3.0 has been released. We expect that the final release of Tiki 3.0 will follow shortly.