Service Pack 2 is final and available on MSDN.
There was one additional fix between the Pre-Release and the final build involving policy processing for clients that do not send the WS-Addressing headers. In this case, request policy was being applied correctly but response policy would not be applied.
Please report any issues you find on the product to wsefeed.
Posted by herveyw at December 3, 2004 10:58 AM