Lync Server 2013, February 2013 Cumulative updates have been released and available at http://support.microsoft.com/kb/2809243. Also check out the following Lync2013 tools:
Lync 2013 Server Resouce Kit
Lync Server 2013 Whiteboard Archiving Viewer
Lync Server 2013, Planning Tool
Lync 2013 SDK
Lync Server 2013 Persistent Chat SDK
Lync Server 2013 Persistent Chat Resource Kit
Microsoft Lync Server 2013 Documentation Help File
Lync Server 2013 Stress and Performance Tool
Snooper and other Debugging Tools for Lync
Updates Resource Centre for Lync2013
Downloads for Lync2013
Lync 2013 Server Resouce Kit
Lync Server 2013 Whiteboard Archiving Viewer
Lync Server 2013, Planning Tool
Lync 2013 SDK
Lync Server 2013 Persistent Chat SDK
Lync Server 2013 Persistent Chat Resource Kit
Microsoft Lync Server 2013 Documentation Help File
Lync Server 2013 Stress and Performance Tool
Snooper and other Debugging Tools for Lync
Updates Resource Centre for Lync2013
Downloads for Lync2013