What changed from WCS6 to WCS7

Starter stores - The Aurora starter store replaces the Madisons starter store used in the previous release.

IBM Management Center for WebSphere Commerce - Workspaces has new capabilities and improved functionality with change history.
 
Apache Derby replaces Cloudscape database support - WebSphere Commerce Version 7 supports Apache Derby instead of Cloudscape. IBM no longer supports the Cloudscape database.
 
DB2 loop-back configuration is removed on Unix platforms 

Oracle database character set is changed from UTF8 to AL32UTF8  

Order trash can feature disabled by default - In WebSphere Commerce Version 7, the order trash can feature is disabled by default. In WebSphere Commerce Version 6, the default owner for deleted orders was -1002. In Version 7, the default owner for deleted orders is now -1006 (a guest user).