This blog has moved to http://blogs.msdn.com/b/appfabric please update your links!
Today we are pleased to announce a Beta 2 Refresh for Windows Server AppFabric. This build supports the recently released .NET Framework 4 and Visual Studio 2010 RTM versions—a request we’ve had from a number of you. Organizations wanting to use Windows Server AppFabric with the final RTM versions of .NET 4 and Visual Studio 2010 are encouraged to download the Beta 2 Refresh today. Please click here for an installation guide on installing the Beta 2 Refresh. We encourage developers and IT professionals building ASP.NET applications or applications that use WCF or WF and run on IIS to download the Beta 2 Refresh and provide feedback at http://connect.microsoft.com/dublin/feedback or via our forum at http://social.msdn.microsoft.com/Forums/en-US/dublin/threads/.
Windows Server AppFabric is a set of application services focused on improving the performance and management of Web and Composite applications. To deliver these benefits, Windows Server AppFabric provides distributed caching technology and pre-built management and monitoring infrastructure that utilize familiar .NET skills.
Currently in Beta 2, Windows Server AppFabric enhances the Application Server role in Windows Server and is available as a free download