Brian posted about the cumulative update for TFS (the TFS SKU, not the client/VS) back in June. After it was released we learned of a couple of bugs in it, including one where upgrades would not work in certain cases. Last Thursday,
Today the .NET team is releasing a cumulative update patch. This has all of the QFEs up until a couple of months ago rolled into one patch. Included as part of that is a patch for WPF that improves the performance of the Windows Workflow Designer as well as a hang that a number of folks have hit.