Version Date Released Description
2.0.12606.0
October 22, 2010[3]
New Dashboard/Kinect Dashboard
Adds a visual refresh to incorporate elements of Microsoft's Metro design style.
Adds a motion menu specialized for Kinect under system settings.
Adds ESPN as an app download via Xbox Live. ESPN is only available in the US and requires an Xbox Live Gold subscription. Certain ISPs do not support the service. ESPN can be limited or blocked entirely.[4]
Adds Kinect Functionality for Zune, Last.fm, Sky Player
Updates Zune adding Zune Music and ZunePass functionality.
New codec for Xbox Live voice chat that improves communication quality.
New boot screen animation with redesigned Xbox 360 orb and ribbons.
Improved Netflix integration by enabling to search the entire Netflix catalog from within the console.[3]
Improved Avatars to 2.0 version with human-like proportions.
منبع
http://en.wikipedia.org/wiki/Xbox_360_System_Software