Sakai 2.5 no longer contains the Discussion tool. It has been retired and removed from the release, as there was no longer an active project team supporting the tool, and the feedback from the community was that it was not been used. The Forums tool provides a viable alternative.
If you are upgrading to Sakai 2.5, and previously used the Discussion tool, you have two options:
- Continue using Discussion – A 2.5-compatible version of the Discussion tool is available in Contrib. You can build it and add it to your Sakai instance. No one has committed to supporting this version of the tool though, and you should not rely on itremaining available for future Sakai releases.
- Migrate Discussion content to Forums – A utility for converting Discussion tool content to Forums tool content is available in Contrib. See the README.TXT file for more information.