New & improved features:

* Shopping cart, group subscriptions and payments
* Workspaces & perspectives: for efficient partitioning of large projects, with permission based dynamic content & preference filtering
* BigBlueButton web-conferencing integration (audio/video/chat/screensharing)
* WebDAV access to file galleries
* Performance improvements
* Advanced rating and scoring system,
* Improved translation/multilingual support - i18n
* Spreadsheets, using jQuery
* New themes (skins)
* and much more more

http://info.tikiwiki.org/article95-Tiki … s-Released