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Skype for Business Server updates

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Find and manage updates for Skype for Business Server 2019 and 2015 and Lync Server 2013 and 2010 in one place. Use the links on this page to get more information about updates, and then download the updates.

Skype for Business Server updates

Find and manage updates for Skype for Business Server 2019, Skype for Business Server 2015, Lync Server 2013, and Lync Server 2010 in one place. Use the links on this page to get more information about updates, and then download the updates.

For the latest Skype for Business Online and Microsoft 365 updates, see the Microsoft 365 Roadmap.

Skype for Business Server 2019 update history

KB 4470124 is the master KB for Skype for Business Server 2019. It contains historical data about all the cumulative updates and hotfixes that have been released for this product.

Skype for Business Server 2019 tools

Package name
Release date

UCMA 6.0 SDK
June 2019

Unified Communications Managed API 5.0 Runtime
June 2018

Skype for Business Server 2019, Management Pack
June 2018

Skype for Business Server 2015 update history

KB 3061064 is the master KB for Skype for Business Server 2015. It contains historical data about all the cumulative updates and hotfixes that have been released for this product.

Skype for Business Server 2015 tools

Package name
Release date

UCMA 5.0 SDK
May 2015

Unified Communications Managed API 5.0 Runtime
May 2015

Skype for Business Server 2015, Management Pack
June 2019

Lync Server 2013 update history

KB 2809243 is the master KB for Lync Server 2013. It contains historical data about all the cumulative updates and hotfixes that have been released for this product.

Lync Server 2013 Dev tools

Pre-configured VHDs

The complete topology consists of seven virtual machines that enable you to fully evaluate the Microsoft Lync 2013, Microsoft Exchange 2013, SharePoint 2013, and UC developer platform APIs (including Microsoft Lync 2013 SDK, Exchange Web Services Managed API 2.0, Microsoft Lync Server 2013 SDK, and Microsoft Unified Communications Managed API 4.0).

Lync Server 2013 tools

Package name
Release date

Lync Server 2013 Meeting Migration Tool (MMT)
September 2021

Lync Connectivity Analyzer (32-bit) RETIRED
June 2017

Lync Connectivity Analyzer (64-bit) RETIRED
June 2017

Lync Server 2013 Best Practices Analyzer
October 2012

Lync Server 2013 Capacity Calculator
July 2013

Lync Server 2013 Debugging Tools
January 2014

Lync Server 2013 Management Pack
May 2016

Lync Server 2013 Persistent Chat Resource Kit
July 2013

Lync Server 2013 Planning Tool
July 2013

Lync Server 2013 Resource Kit Tools
January 2014

Lync Server 2013 Stress and Performance Tool
March 2013

Lync Server 2013 Whiteboard Archiving Viewer
February 2013

Lync VDI 2013 plugin (32-bit)
October 2012

Lync VDI 2013 plugin (64-bit)
October 2012

New Office Visio Stencil
July 2016

Lync Server 2013 downloadable documentation

Package name
Release date

Lync Server 2013 Documentation Help File
August 2015

Lync Server 2010 update history

KB 2493736 is the master KB for Lync Server 2010. It contains historical data about all the cumulative updates and hotfixes that have been released for this product.

Package name
KB number
Release date

Lync Server 2010 Cumulative Update 18 Hotfix 1
KB 2493736
June 2019

Lync Server 2010 Cumulative Update 18
KB 2493736
January 2019

Lync Server 2010 Cumulative Update 17
KB 3148801
April 2016

Lync Server 2010 Cumulative Update 16
KB 3057803
May 2015

Lync Server 2010 Cumulative Update 15
KB 3030726
February 2015

Lync Server 2010 Cumulative Update 13
KB 2982385
KB 2982388
September 2014

Lync Server 2010 Cumulative Update 12
KB 2957044
April 2014

Lync Server 2010 Cumulative Update 11
KB 2909888
January 2014

Lync Server 2010 Cumulative Update 10
KB 2889610
October 2013

Lync Server 2010 Cumulative Update 9
KB 2860700
July 2013

Lync Server 2010 Cumulative Update 8
KB 2791381
July 2013

Lync Server 2010 Cumulative Update 7
KB 2737915
October 2012

Lync Server 2010 Cumulative Update 6
KB 2701585
June 2012

Lync Server 2010 Cumulative Update 5
KB 2670352
February 2012

Lync Server 2010 Cumulative Update 4
KB 2514980
November 2011

Lync Server 2010 Cumulative Update 3
KB 2571546
July 2011

Lync Server 2010 Cumulative Update 2
KB 2500442
April 2011

Lync Server 2010 Cumulative Update 1
KB 2467775
January 2011

Group Chat 2010 updates

Package name
KB number
Release date

Cumulative update for Lync Server 2010, Group Chat
KB 2884623
October 2013

Cumulative update for Lync Server 2010, Group Chat Administration Tool
KB 2884631
October 2013

Cumulative update for Lync 2010, Group Chat
KB 2884627
October 2013

Lync Server 2010 developer tools

Package name
Release date

Lync Server 2010 SDK
November 2010

Lync 2010 SDK
March 2011

Lync Server 2010 Group Chat SDK
June 2012

Unified Communications Managed API 3.0 SDK
May 2016

Speech Platform – Server Runtime Languages (version 10.2)
September 2010

Unified Communications Enhanced Presence Schemas for Microsoft Lync Server 2010
November 2010

Lync Server 2010 tools

Package name
Release date

IM an Expert for Microsoft Lync Server 2010
March 2012

Lync Server 2010 Best Practices Analyzer
February 2011

Lync Server 2010 Capacity Calculator
February 2012

Lync Server 2010 Planning Tool
February 2011

Lync Server 2010 Resource Kit Tools
May 2012

Lync Server 2010 Stress and Performance Tool
March 2011

Lync Server 2010 Visio Stencil
February 2011

Lync Server 2010 Web Scheduler
April 2011

Lync Server 2010 downloadable documentation

Resource Kit (technical reference)

Visit the Microsoft Lync Server 2010 Resource Kit download site to download book chapters individually OR download a .zip file that contains all 19 chapters of the Resource Kit.

Group Chat

Package name
Release date

Lync Server 2010 Group Chat
November 2010

Lync Server 2010 Group Chat Admin Tool
November 2010

Lync 2010 Group Chat
November 2010

Trial software

Additional information

Software updates include any update, update rollup, service pack, feature pack, critical update, security update, or hotfix. See KB 824684 for a description of the standard terminology used to describe Microsoft software updates.