This document discusses new features of workflows in SharePoint 2013. Workflow processing is now handled by Workflow Manager for improved stability and scalability. SharePoint 2013 workflows support calling web services and a fully declarative model. Tools like Visio 2013, SharePoint Designer 2013, and Visual Studio 2012 can be used to create custom workflows visually or with code. Web services allow moving custom workflow logic out of the workflow. Advanced debugging of workflows is possible using Fiddler.