First off, thanks for the hard work on release 4.7.22 so quickly.
I'm not sure which update (but I believe it is somewhere after 4.7.19) broke it, but Visual Studio 2008 is now reporting errors loading StyleCop.dll.
More specifically, MSBuild v3.5 can't load something:
The "StyleCopTask" task could not be loaded from the assembly C:\Program Files (x86)\MSBuild\..\StyleCop 4.7\StyleCop.dll. Could not load file or assembly 'file:///C:\Program Files (x86)\StyleCop 4.7\StyleCop.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. Confirm that the declaration is correct, and that the assembly and all its dependencies are available.
My question is: is building StyleCop using a newer runtime intentional (i.e., is Visual Studio 2008 support being deprecated)?