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Skype for business 2015 – Cumulative Update List – September 2015

Here is a precise list of what is on S4B Updates.

Latest Skype for business update download :


Do not forget to run the Install-CsDatabase cmdlet!

Cumulative Update S4B Server Version Date Released Associated KB Security bulletin Updates Server to Apply Resolutions
RTM 6.0.9319.0 RTM NA     All S4B Servers  
CU 1 6.0.9319.55 June 2015 3061059     All S4B Servers  
CU 2 6.0.9319.72 September 2015 3061064 MS15-104 Core Components
UCMA 5.0
Front End Server and Edge Server
Conferencing Server
Web Components Server
Web Conferencing Server
Mediation Server
Call Park Service
Backup Service
Central Management Server
Windows Fabric
Bandwidth Policy Service
Conferencing Attendant
Response Group Service
All S4B Servers Windows 10 users who use Edge can’t join a meeting from Skype for Business Web App.


Skype for Business 2015 – Server Prerequisites

Here are a few prerequisites needed for each Skype for business server installation:

Windows PowerShell 3.0 Download
Microsoft .NET Framework 4.5 Download
Windows Identity Foundation
Remote Server Administration Tools




Lync 2013 – Oauth On-Premises (Lync Server 2013 and Exchange 2013)

What is this?

Since Lync Server 2013, there is a new prerequisite on the Lync Servers for Exchange 2013 interconnection: This will allow you to use :

  • Unified Contact Store (UCS)
  • Exchange OWA IM and presence Integration

Windows Identity Foundation

  “It’s a new extension to the Microsoft .NET Framework that makes it easy for developers to enable advanced identity capabilities in the .NET Framework applications.” This feature has been created to support server to server authentication. It is used by and Windows Communication Foundation applications. (In our situation, by Lync server 2013 and Exchange Server 2013)   In order to configure Oauth, you must do two things:

  • Assign a certificate to Lync Server’s
  • Set Exchange as a partner application.

Please note : “It should also be pointed out that you do not need to use server-to-server authentication: server-to-server authentication is not required in order to deploy Lync Server 2013. If Lync Server 2013 does not need to communicate with other servers (such as Exchange 2013) then server-to-server authentication is not needed.” Source   Also note that “your Lync Server 2013 default certificate can also be used as the OAuthTokenIssuer certificate” Source


There is two ways to install the WIF : Windows Server 2008 R2    Install with the Windows Identity Foundation (KB974405) installer.   Windows Server 2012    Server Manager Go to Add Roles and Features Wizard, select Features. Select Windows Identity Foundation 3.5 from the list. Click Next, then click Install.   Powershell

Once WIF has been installed you can run Deployment Wizard and Assign the Lync default certificate to Oauth certificate.


Description of Windows Identity Foundation ( Microsoft TechNet – Lync Server 2013 (

Lync 2013 Server – Cumulative Updates List – September 2015

I needed a precise list of what is on Lync Updates so I managed to insert every useful data in one table.

As well, I give you a simple script which allows you to get the CU version on the Lync Server actually deployed.

Latest update download :


Do not forget the Install-CsDatabase cmdlet if you install the Cumulative Update from October.

Security Update5.0.8308.927September 20153080353Update for Web Components Server

Cumulative Update Lync Server Version Date Released Associated KB Updates Server to Apply
CU 1 5.0.8308.291  February 2013  2781547 Address Book Web Query service
ABS databases
location policy
CU 2 5.0.8308.420  July 2013  2819565 Update for Persistent Chat server
Update for Conferencing server
Update for Unified Communications Managed API 3.0 Workflow APIs
CU 3 5.0.8308.556 October 2013  2881684 Update for Mediation server
Update for Conferencing Announcement
Update for Call Park Service
CU 4 5.0.8308.577 January 2014  2910244 Update for Backup Service
Update for Central Management Server
CU 5 5.0.8308.738 August 2014  2937310 Update for Windows Fabric
Update for Web Conferencing server
Update for Administrative Tools
CU 6 5.0.8308.815 September 2014  2987510 Update for Conferencing Attendant
Update for Core Components
Update for Web Components server
Update for Unified Communications Managed API 4.0, Core Runtime 64-bit
Update for Standard or Enterprise Edition server (Front End Servers and Edge Servers)
CU 7 5.0.8308.831 October 2014 3001616 Update for IM
CU 8 5.0.8308.834 November 2014 3010032 Update for
CU 9 5.0.8308.857 December 2014 3018158 Update for
CU 10 5.0.8308.871 February 2015 3031061 Update for Conference Service
Update for Conference Service
CU 11 5.0.8308.887 May 2015 3051949 Update for URL filter policy (“http://” not filtered)
CU 12 5.0.8308.920 July 2015 3066655 Update for XMPP Gateway
Update for XMPP Proxy
Update for Application Host
Update for Audio Test service
Update for Core Management Server
Update for Backup Service
Update for Unified Communications Managed API 4.0 Runtime
Update for web components server
Update for core components
Update for Call Park service
Update for Conferencing Announcement
Update for Conferencing Attendant
Update for Mediation Server
Update for Administrative Tools
Update for Web Conferencing server
Update for UCMA 3.0 Workflow APIs
Update for Conferencing Server
Update for Persistent Chat
Update for Bandwidth Policy service
Update for Reponse Group Service
Standard Edition server
Enterprise Edition – front-end server and back-end server
Edge server
stand-alone Mediation server
Director server
Persistent Chat front-end server
Administration Tools
Security Update 5.0.8308.927 September 2015 3080353 – MS15-104 Update for Web Components Server