The full Tiki 3 package can be downloaded at Download for new installations or upgrades of sites older than Tiki 3.3, or to update a Tiki 3.3 site to 3.4, a patch is available at http://sourceforge.net/projects/tikiwiki/files/ (external link).

3.x changelog (external link)

Again, thanks to everyone who contributed to this release, and especially the Quality Team and those who worked with them in monitoring the file commits and maintaining the quality of the code.