Updates are;
Download the Lync.msp x86 package.
Download the Lync.msp x64 package.
Download the LyncServerupdateInstaller.exe package.
KB; http://support.microsoft.com/kb/2493736
Don’t forget after your server install to run the following PowerShell script;
Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn < EEBE.Fqdn > --UseDefaultSqlPaths
Where <EEBE.Fqdn> is you’re frontend server when running the Standard edition and the SQL server when running in Enterprise edition.