Lync CU4 (cumulative update 4) has been released. All components can be found here.
http://www.microsoft.com/download/en/details.aspx?id=11551
Updates that are released for Lync Server 2010
Update for Administrative Tools
2467771 Description of the update package for Lync Server 2010, Administrative Tools: January 2011
Update for Core Components
2514981 Description of the cumulative update for Lync Server 2010, Core Components: November 2011
Update for Conferencing Attendant
2575872 Description of the cumulative update for Lync Server 2010, Conferencing Attendant: July 2011
Update for Conferencing Server
2514978 Description of the cumulative update for Lync Server 2010, Conferencing Server: November 2011
Update for Web Components Server
2514979 Description of the cumulative update for Lync Server 2010, Web Components Server: November 2011
Update for Standard/Enterprise edition Server
2514980 Description of the cumulative update for Lync Server 2010: November 2011
Update for Web Conferencing Server
2575871 Description of the cumulative update for Lync Server 2010, Web Conferencing Server: July 2011
Update for Mediation Server
2640253 Description of the cumulative update for Lync Server 2010, Mediation Server: November 2011
Update for Unified Communications Managed API 3.0 Runtime
2500449 Description of the cumulative update for Lync Server 2010, Unified Communications Managed API 3.0 Runtime: November 2011
Update for Policy Decision Point
2502809 Description of the cumulative update for Lync Server 2010 Policy Decision Point : November 2011
Download the LyncServerupdateInstaller.exe package now.
List of server roles and the updates that apply to them
Lync Server 2010 – Standard Edition Server
Lync Server 2010 – Enterprise Edition – Front-end
Lync Server 2010 – Enterprise Edition – Stand-alone A/V Conferencing Server
Lync Server 2010 – Monitoring Server
Lync Server 2010 – Edge Server
Lync Server 2010 – Stand-alone Mediation Server
Lync Server 2010 – Administration Tools
Lync Server 2010 – Standard Edition Server
Update for Core Components – KB 2571545
Update for Conferencing Server – KB 2575870
Update for Web Components Server – KB 2571547
Update for Standard/Enterprise edition Server – KB 2571546
Update for Web Conferencing Server – KB 2575871
Update for Conferencing Attendant – KB 2575872
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Enterprise Edition – Front-end
Update for Core Components – KB 2571545
Update for Conferencing Server – KB 2575870
Update for Web Components Server – KB 2571547
Update for Standard/Enterprise edition Server – KB 2571546
Update for Web Conferencing Server – KB 2575871
Update for Conferencing Attendant – KB 2575872
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Enterprise Edition – Stand-alone A/V Conferencing Server
Update for Core Components – KB 2571545
Update for Conferencing Server – KB 2575870
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Monitoring Server
Update for Core Components – KB 2571545
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Edge Server
Update for Core Components – KB 2571545
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Stand-alone Mediation Server
Update for Core Components – KB 2571545
Update for Mediation Server – KB 2502810
Update for Unified Communications Managed API 3.0 Runtime – KB 2571505
Lync Server 2010 – Administration Tools – Topology Builder
Update for Core Components – KB 2571545
Update for Administration Tools – KB 2467771





