This is good news to a lot of people.
"For the first time in the Revit product line history, we have implemented Service Pack technology similar to the AutoCAD based products. This will greatly reduce the effort needed to update the Revit products to the newest build by allowing our users to update their existing installations without having to reinstall Revit. Because of this change, we recommend that you read the Service Pack Readme before installing. "
Web Update 2 is available at this location: