- Professional
- Premium - Code Coverage, Test Impact Analysis, Coded UI Test, Database Tools, Code Analysis, Code Metrics, Profiling
- Ultimate - includes Web and Load Testing, IntelliTrace (formerly "Historical Debugger"), Architect Explorer, UML and Layer Diagramming Tools (very cool!)
All of the editions will provide new tools for cloud development and new WPF/Silverlight designers. (There's also a mentiong for improved Office & SharePoint development tools, but I'll believe it when I see it. Up to now, the tooling for those products has been seriously underwhelming.)
Pay special attention to the newly announced deal here as well. It can get you upgraded!