Tiki 1.9.0 -Sirius- introduces over 400 (honest!) new features & enhancements, options, modifications & bugfixes. Tiki 1.9 was started in CVS at the end of 2003 and the formal release cycle (and use on tikiwiki.org) started in June 2004.
Thank you to the unprecedented number of people who helped. Over 400 commits in the last 7 days!!
Major new features include: Enhanced wiki diff engine, Site identity, Multilingual content handling, Enhanced trackers (custom forms), TikiMods, TikiSheet, Wiki3d, RSS feeds in MBOX & OPML format, Enhanced image galleries (sub-galleries, batch upload and a slide show), Friendship network, Score system, Enhanced articles types, Wiki page & tracker rating, Category permissions, Major calendar enhancements, More intuitve user & group management, new optional validation step for user registration, group subscription to a newsletter, Admin Screen for managing Meta Tags, nicer Error 404 page with seach prompt, 18 new modules (now at 92) & 25 new plugins (now at 55).