Update Rollup 7-v2 for Exchange Server 2010 Service Pack 1

Microsoft has released Update Rollup 7-v2 for Exchange Server 2010 Service Pack 1
See info about the update in KB2756496 and download from here

Update Rollup 8-v2 for Exchange Server 2007 Service Pack 3

Microsoft has released Update Rollup 8-v2 for Exchange Server 2007 Service Pack 3
See info about the update in KB2756497 and download from here

Security Update for Microsoft Lync 2010 Attendee: October, 2012

Microsoft released Lync 2010 Attendee, v4.0.7577.4109
See description in KB2741517 and download from here: User level install or Admin level install

Security Update for Microsoft Office Communicator 2007 R2: October, 2012

Microsoft released Office Communicator 2007 R2, v3.5.6907.261
See description in KB2741517 and download from here

Security Update for Microsoft Lync 2010: October, 2012

Microsoft released Lync 2010, v4.0.7577.4109
See description in KB2741517 and download from here x86 or x64

Microsoft Office Communications Server 2007 R2 XMPP Gateway: September 2012

Microsoft released Office Communications Server 2007 R2 XMPP Gateway, v3.5.6907.263
Se description in KB2742290 and download from here

Microsoft Office Communications Server 2007 R2 Group Chat: September 2012

Microsoft released Office Communications Server 2007 R2 Group Chat v3.5.6907.265
See Server description in KB2728998 and download from here
See Client description in KB2735021 and download from here
See Administration Tool in KB2728997 and download from here