Lync Server 2010 Cumulative Update March 2013 are available now (CU8)
Server download can be found here: http://www.microsoft.com/en-us/download/details.aspx?id=11551
Associated KB: http://support.microsoft.com/kb/2493736
Lync 2010 client hotfix here x64 http://www.microsoft.com/en-us/download/details.aspx?id=14490
Lync 2010 client hotfix here x32: http://www.microsoft.com/en-us/download/details.aspx?id=25055
