A Developer's Introduction to Windows Workflow Foundation (WF4) in .NET 4 Beta 1
- Introduces a significant amount of change from the previous versions of the technology that shipped as part of .NET 3.0 and 3.5.
- Revisited core of the programming model, runtime and tooling.
- Increased performance and productivity.
- Backwards compatibility. The new framework components are found primarily in the System.Activities.* assemblies while the backwards compatible framework components are found in the System.Workflow.* assemblies.