Confluence was upgraded this week to version 5.x. There are many new features in Confluence 5, most of which you won't directly experience, however, the upgrade keeps the Wiki on the latest release train for future upgrades and patches.
The one area you may notice a change are the menus. Upgrading Confluence required us to modify the user interface theme and re-implement many features such as the menus. The same functions are available with the new menu layout, but appear in different drop-downs. Here is a comparison of the old versus new Menus: