Announcing the Windows Logo Kit 1.6 Release Schedule
Windows Logo Kit (WLK) 1.6 is expected to be released to manufacturing (RTM) on approximately January 28. It will then be released to the web (RTW) within a week. WLK 1.6 will become a required kit for logo submissions effective June 1, 2011. Until that date, partners can choose to use either WLK 1.5 or WLK 1.6 for logo submissions. WLK 1.5 expires at 23:59 P.M. Pacific Time on May 31.
Obtaining a logo for Windows XP can only be done using WLK 1.5, and only until 23:59 P.M. Pacific Time on May 31. Partners can, however, obtain a driver signature for Windows XP by submitting through the "Unclassified" program in WLK 1.6. Drivers submitted through the Windows XP Unclassified category are eligible to go on Windows Update. For more information, see http://www.microsoft.com/whdc/whql/resources/news/whqlnews_120710.html.
Partners are required to use Windows 7 Service Pack 1 to test their submissions 90 days after the RTM of the service pack. This is documented in Policy-0002.