This document summarizes new features for SharePoint 2010 developers, including improved developer tools in Visual Studio 2010 and SharePoint Designer 2010, new ways to access and modify data like LINQ and the Client Object Model, UI enhancements for ribbons and dialogs, and the new sandboxed solutions model. It provides an overview of the updated SharePoint technology stack and how developers can upgrade existing SharePoint 2007 code to take advantage of the new features in SharePoint 2010.