The user synchronization between the UH wiki and Moodle course areas will no longer work after the Moodle upgrade in June. All links to wiki spaces in Moodle course areas will continue to work, but new users enrolling in the Moodle course area have to be added to the wiki space manually (see the Confluence documentation). There is no change for existing users in the course area, they can still access the wiki space from Moodle as before.
After the version change, new UH wiki spaces (at http://wiki.helsinki.fi) cannot be created from Moodle any more. However, a new Moodle wiki activity is available, which supports groups and individual wiki spaces. For those who want to keep on using UH wiki (for public wiki spaces, for instance), you can create wiki spaces at http://wiki.helsinki.fi and link them to your Moodle course area with the Add link functionality.