This document discusses Lync 2013 and the new workplace capabilities it provides. It covers the diversity of Lync 2013 clients including the web app, mobile apps, VDI plugin, and Windows Store app. Third party IP phones are also supported. The document then discusses migrating from earlier versions of Lync/OCS, including from OCS 2007 R2 and Lync 2010. Key steps are outlined for both migration paths such as installing updates, defining the topology, moving users, and post-migration configuration.