If you are a Premium or Premium-Worldwide User, you have the choice of upgrading the North American routing dataset to access quarterly releases or staying with the base version release dataset instead. To access quarterly routing and map datasets in your interface, a simple field value change is needed. The DataVer field determines whether the base version dataset or the quarterly release dataset will be accessed. When ALK releases a new version, all users are automatically updated to that version, unless you set the DataVer field to a specific version of your choice. The User’s Guide will help you choose the right DataVer field setting.