There is a minor update available for the Windows AppFabric Server (not to be confused with the Windows Azure AppFabric). The beta 2 refresh supports the just released .NET 4 and Visual Studio 2010 versions.
Download link: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=8197ad8d-673f-4efb-b165-82710f2648c3#filelist
Windows Server AppFabric is a set of integrated technologies that make it easier to build, scale and manage Web and composite applications that run on IIS. Windows Server AppFabric targets applications built using ASP.NET, Windows Communication Foundation (WCF), and Windows Workflow Foundation (WF).
It provides out-of-the-box capabilities for you to easily build and manage composite applications, including:
- Enhanced design and development tools in Visual Studio to build rich composite applications
- Management and monitoring of services and workflows via integration with IIS Manager and Windows PowerShell
- Distributed in-memory application cache to improve application performance