Click the Source links below for more detailed info on this update.

Download Links
Windows 7 (32-bit / 64-bit), Windows Server 2008 R2 (64-bit)

Source: Remote Desktop Service Blog / KB2592687

Prerequisites
To install the RDP 8.0 update, you must have hotfix 2574819 installed.
New features for client computers that are running Windows 7 SP1 or Windows Server 2008 R2 SP1
The RDP 8.0 update contains the following new features for client computers that are running Windows 7 SP1 or Windows Server 2008 R2 SP1:
  • Remote Desktop Connection 8.0 client
  • Dynamic In-Session USB Redirection
  • Reconnect for RemoteApp and Desktop Connections
  • Improved single sign-on experience for Remote Desktop Web Access
  • Support for RemoteFX Media Redirection APIs for VoIP applications
  • Support for Nested Sessions


New features for remote computers that are running Windows 7 SP1
The RDP 8.0 update lets remote computers that are running Windows 7 SP1 use RDP 8.0. The update contains the following features for remote computers that are running Windows 7 SP1:

  • RemoteFX for WAN
  • RemoteFX Network Auto Detect
  • RemoteFX Adaptive Graphics
  • RemoteFX USB Redirection for non-RemoteFX vGPU virtual desktops
  • Support for Nested Sessions
  • Performance counters for monitoring the user experience

RDP 8.0 cannot be enabled for remote computers that are running Windows Server 2008 R2 SP1.
Features that are made obsolete in client computers
When RDP 8.0 is installed and enabled in client computers, all features are available.

Features that are made obsoleted in remote computers that are running Windows 7 SP1
When RDP 8.0 is installed and enabled in remote computers that are running Windows 7 SP1, the following features are unavailable:

  • Monitoring an active session of another user remotely by using the Shadow command (Remote Control)
  • Aero Glass Remoting