This document summarizes new features in ASP.NET 4.0, including improved SEO, cleaner client IDs, routing, and chart controls in Web Forms. It also covers improvements to ASP.NET AJAX such as client-side controls, script loading, and data binding. For ASP.NET MVC 2.0, it outlines model validation, templates, areas, and asynchronous controllers. Finally, it provides an overview of ASP.NET Dynamic Data and references for further information.