Version 3.3 of the Outerworlds Server is necessary to support many of the new features of the Outerworlds 3.3 browser. In particular, terrain, 3-axis object rotation, and the new world ejection types all require a 3.3 world server in order to function.

The format of both the cell and ejection databases has changed in 3.3. These databases must be converted before upgrading a world server to 3.3. The 3.3 world server also introduces a new elev database where world terrain data is stored.