Update Rollup 6 for Exchange Server 2010 Service Pack 1

Microsoft has released Update Rollup 6 for Exchange Server 2010 Service Pack 1
See info about the update in KB2608646 and download from here

Microsoft Lync for Mac 2011, October 2011

Microsoft released Microsoft Lync for Mac 2011 v14.0.1See description in KB2634523 and download from here

Microsoft Lync 2010 Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000, October 2011

Microsoft released Microsoft Lync 2010 Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000, v4.0.7577.337
See description in KB2634533

Microsoft Lync 2010 Phone Edition for Aastra 6721ip and Aastra 6725ip, October 2011

Microsoft released Microsoft Lync 2010 Phone Edition for Aastra 6721ip and Aastra 6725ip, v4.0.7577.337
See description in KB2633998

Microsoft Lync 2010: October 2011

Microsoft released Lync 2010, v4.0.7577.336
See description in KB2630294

Updates for Microsoft Lync Server 2010, October 2011

Microsoft released an update for Microsoft Lync server 2010, v4.0.7577.173
See description in KB2630296

Forefront Unified Access Gateway SP1 Update 1

Microsoft released Forefront Unified Access Gateway Service Pack 1 Update 1
Download from here

Microsoft Forefront Threat Management Gateway 2010 SP2

Microsoft released Microsoft Forefront Threat Management Gateway 2010 Service Pack 2
Download from here

Microsoft Lync 2010 Training

Microsoft released Microsoft Lync 2010 Training v2.0
Download from here