Microsoft Lync 2013 / Skype for Business 2015: January 2016

Microsoft released Lync 2013 / Skype for Business 2015, v15.0.4787.1002
See description in KB3114502 and download from here x86 or x64 (Remember to check the Prerequisites)

Updates for Lync Server 2013: January 2016

Microsoft released Lync Server 2013, v5.0.8308.945
See description in KB2809243 and download from here

Microsoft Skype for Business for Android

Microsoft has released Microsoft Skype for Business for Android
Download from here

Cumulative Update 11 for Exchange Server 2013

Microsoft released Exchange Server 2013 Cumulative Update 11, v15.00.1156.006
See description in KB3099522 and download from here

Update Rollup 12 For Exchange 2010 Service Pack 3

Microsoft has released Update Rollup 12 for Exchange Server 2010 Service Pack  3
See info about the update in KB3096066 and download from here

Update Rollup 18 for Exchange Server 2007 Service Pack 3

Microsoft has released Update Rollup 18 for Exchange Server 2007 Service Pack 3
See info about the update in KB3078672 and download from here: x86 or x64

Updates for Lync Server 2013: December 2015

Microsoft released Lync Server 2013, v5.0.8308.941
See description in KB2809243 and download from here