All of the changes in this release are related to the website. The layout has been changed so that wide tables are more easily displayed. Online documentation has been added. Jobs can now be rerun and marked directly from the status and log directories.
The 'Cache-Control: Public' HTTP response header was added to allow Firefox 3 to cache SSL pages which it does not do by default. This greatly improves website performance if you're using Firefox 3. Firefox 2 does not support the Cache-Control response header, so the website will be slower if you're using SSL and Firefox 2 or earlier.
For a full list of changes, please see the Change log.