.NET Framework 4 Platform Update 1

.NET Framework 4 Platform Update 1 was released a month ago.  Details on the new features are here in KB 2478063.

The updates are all around Workflow Foundation (WF):

• Windows Workflow Foundation 4 State Machine Activity
• SQL WF4 Instance Store (SWIS) on SQL Azure
• Enable custom workflow hosts to use WF4 compensation

Note that there are several downloads.  You’ll need a separate one for Visual Studio 2010 design time support.

Steve Danielson describes the update in detail here.

Ron Jacobs notes what might be a bug here.

-Krip