A few weeks ago Microsoft released an updated version for the Lync Server 2013 MP, version 5.8308.871.
Please note that the download page has a minor issue. The version stated on the webpage is 8308.871 but it’s version 5.8308.871. This prevents the MP to be updated through the SCOM Console (MP Catalog) since SCOM thinks it’s an older version.
MP can be downloaded from here.