Windows Management Framework 3.0 aka PowerShell 3

Overview

Windows Management Framework 3.0 makes some updated management functionality available to be installed on Windows 7 SP1, Windows Server 2008 R2 SP1 & Windows Server 2008 SP2. Windows Management Framework 3.0 contains Windows PowerShell 3.0, WMI & WinRM.

Windows PowerShell 3.0
Some of the new features in Windows PowerShell 3.0 include:

• Workflow
  Windows PowerShell Workflow lets IT Pros and developers apply the benefits of workflows to the automation capabilities of Windows PowerShell. Workflows allow administrators to run long-running tasks (which can be made repeatable, frequent, parallelizable, interruptible, or restart-able) that can affect multiple managed computers or devices at the same time.
• Disconnected Sessions
  PowerShell sessions can be disconnected from the remote computer and reconnected later from the same computer or a different computer without losing state or causing running commands to fail.
• Robust Session Connectivity
  Remote sessions are resilient to network failures and will attempt to reconnect for several minutes. If connectivity cannot be re-established, the session will automatically disconnect itself so that it can be reconnected when network connectivity is restored.

More information and downloads can be found here;