Microsoft has quietly released a new system update for its Xbox 360 console today. While it won't include any of the new social features that the company has been touting for months, this update will finally allow the current Xbox 360 Wireless Network Adapter (and presumably the upcoming 802.11n version) to support the WPA2 wireless security protocol -- a long overdue addition that many have been clamoring for.

Users should be receiving the update sometime this morning when they sign into Xbox Live. Microsoft's Larry 'Major Nelson' Hyrb emphasized that the update does not include the upcoming Facebook, Twitter and Last.fm integration nor it brings the Zune Marketplace 1080p "instant-on" streaming video functionality. That system update should go live next month.