If you are using Developer Express' CodeRush and Refactor! Pro in Visual Studio 2005 or Visual Studio 2008 or any one of the free versions of Refactor! for ASP.NET, C++, or VB.NET, you will definitely want to download v3.0.8 which includes a large number of bug fixes and a few new features.
You can find a complete list of what is new and improved in CodeRush, Refactor!, and DXCore here.
I just uninstalled v3.0.7 and installed v3.0.8 without issues.
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