This new version fixes a number of bugs and adds support for more high level C# features such as iterator blocks.
A new tabbed browsing model was added and Jason Haley's PowerCommands add-in was included as an exploratory step for future versions.
To find out more about version 7 just visit http://www.reflector.net/.
The release of version 7 also means that the free version of .NET Reflector is no longer available for download. Maybe you can still get one of the give away licenses that Red Gate provided to communities and individuals.