Use the links on this page to get more information about and download the most recent updates for the perpetual versions of Skype for Business 2016, Skype for Business 2015, and Lync 2013 clients.
Feb 05, 2020 Lync Server 2013 customers should consider upgrading their installation to Skype for Business Server 2015, or downloading the latest Lync Server 2013 Cumulative Update version 8308.974 or higher. Lync Server 2010 is not supported – instead we recommend customers continue to use the Lync for Mac 2011 client.
Jun 09, 2014 Before you install the Lync for Mac 2011 14.0.9 update, you must uninstall any version of Lync for Mac 2011 that is earlier than Lync for Mac 2011 14.0.4 from your computer. Additionally, make sure that the computer is running Mac OS X 10.5 or a later version of the Mac OS X operating system. May 10, 2017 Microsoft Lync is the new rich client for Lync users on the Mac platform and offers integrated functionality for instant messaging, presence, conferencing and voice. Lync for Mac is designed to work with both Lync Server 2010 and Lync Online to help you: Control communication costs. Improve user productivity.
Mar 14, 2017 In the Microsoft Lync for Mac 2011 Update volume window, double-click the Lync for Mac 2011 Update application to start the update process, and then follow the instructions on the screen. If the installation finishes successfully, you can remove the update installer from your hard disk. Microsoft Teams with an Office 365 subscription is the latest version of Microsoft Teams. Previous versions include, Lync 2013, Lync 2010, and Lync 2007. Microsoft Teams is compatible with Windows 10, Windows 8.1, and Windows 7.
Note
The information in this article only applies to perpetual versions of Skype for Business that use the Windows Installer (MSI) installation technology. For example, if you installed a volume licensed version of Skype for Business, such as Skype for Business included with Office Professional Plus 2016.
The information in this article doesn't apply to Office 365 versions of Skype for Business, such as Skype for Business included with Office 365 ProPlus.
For the latest mobile client updates, go to the app store for your mobile client (iTunes, Google Play, or Microsoft Store) to view details and install updates.
To find out what version of Skype for Business you're using, see What version of Skype for Business do I have?
For more information about installing Office updates, see Install Office updates.
Skype for Business compatibility with Office 365 and your on-premises environment depends on the system requirements for your deployment:
Office 365 works with any version of Skype for Business that is in mainstream support, which includes the latest version of Skype for Business 2016. For previous versions of Skype for Business, only those that have extended support may continue to work with Office 365, although with reduced functionality. For more information, see Microsoft Lifecycle Policy.
For Skype for Business Server on-premises deployments, follow the system requirements for your version of Skype for Business:
Skype for Business 2016 client updates
Package Name
KB Number
Release Date
Update for Skype for Business 2016
KB 4484133
December 2019
Update for Skype for Business 2016
KB 4484102
October 2019
Update for Skype for Business 2016
KB 4475577
September 2019
Update for Skype for Business 2016
KB 4475548
August 2019
Update for Skype for Business 2016
KB 4475545
July 2019
Update for Skype for Business 2016
KB 4464576
June 2019
Update for Skype for Business 2016
KB 4464532
May 2019
Update for Skype for Business 2016
KB 4462234
April 2019
Update for Skype for Business 2016
KB 4462190
March 2019
Update for Skype for Business 2016
KB 4462114
February 2019
Update for Skype for Business 2016
KB 4461586
January 2019
Update for Skype for Business 2016
KB 4461545
December 2018
Security update for Skype for Business 2016
KB 4461473
November 2018
Update for Skype for Business 2016
KB 4092445
October 2018
Update for Skype for Business 2016
KB 4032255
August 2018
Security update for Skype for Business 2016
KB 4022221
July 2018
Update for Skype for Business 2016
KB 4022155
June 2018
Update for Skype for Business 2016
KB 4018367
May 2018
Update for Skype for Business 2016
KB 4018323
April 2018
Update for Skype for Business 2016
KB 4011725
March 2018
Update for Skype for Business 2016
KB 4011662
February 2018
Update for Skype for Business 2016
KB 4011623
January 2018
Update for Skype for Business 2016
KB 4011563
December 2017
Update for Skype for Business 2016
KB 4011238
November 2017
Security update for Skype for Business 2016
KB 4011159
October 2017
Security update for Skype for Business 2016
KB 4011040
September 2017
Update for Skype for Business 2016
KB 3213548
July 2017
Security update for Skype for Business 2016
KB 3203382
June 2017
Security update for Skype for Business 2016
KB 3191858
May 2017
Update for Skype for Business 2016
KB 3178717
April 2017
Security update for Skype for Business 2016
KB 3178656
March 2017
Update for Skype for Business 2016
KB 3141501
February 2017
Update for Skype for Business 2016
KB 3128049
January 2017
Update for Skype for Business 2016
KB 3127980
December 2016
Update for Skype for Business 2016
KB 3127939
November 2016
Security update for Skype for Business 2016
KB 3118327
October 2016
Update for Skype for Business 2016
KB 3118288
September 2016
Security update for Skype for Business 2016
KB 3115408
August 2016
Update for Skype for Business 2016
KB 3115268
July 2016
Update for Skype for Business 2016
KB 3115087
June 2016
Security update for Skype for Business 2016
KB 3114960
April 2016
Update for Skype for Business 2016
KB 3114846
March 2016
Update for Skype for Business 2016
KB 3114696
February 2016
Update for Skype for Business 2016
KB 3114516
January 2016
Security update for Skype for Business 2016
KB 3114372
December 2015
Security update for Skype for Business 2016
KB 3085634
November 2015
Security update for Skype for Business 2016
KB 2910994
September 2015
Skype for Business 2015 client updates
Package Name
KB Number
Release Date
Update for Skype for Business 2015/Lync 2013
KB 4475519
July 2019
Update for Skype for Business 2015/Lync 2013
KB 4464593
June 2019
Update for Skype for Business 2015/Lync 2013
KB 4464547
May 2019
Update for Skype for Business 2015/Lync 2013
KB 4462207
April 2019
Update for Skype for Business 2015/Lync 2013
KB 4461557
January 2019
Security update for Skype for Business 2015/Lync 2013
KB 4461487
November 2018
Update for Skype for Business 2015/Lync 2013
KB 4461446
October 2018
Update for Skype for Business 2015/Lync 2013
KB 4092457
September 2018
Update for Skype for Business 2015/Lync 2013
KB 4032250
August 2018
Security update for Skype for Business 2015/Lync 2013
KB 4022225
July 2018
Update for Skype for Business 2015/Lync 2013
KB 4022170
June 2018
Update for Skype for Business 2015/Lync 2013
KB 4018377
May 2018
Update for Skype for Business 2015/Lync 2013
KB 4018334
April 2018]
Update for Skype for Business 2015/Lync 2013
KB 4018290
March 2018
Update for Skype for Business 2015/Lync 2013
KB 4011678
February 2018
Update for Skype for Business 2015/Lync 2013
KB 4011638
January 2018
Update for Skype for Business 2015/Lync 2013
KB 4011284
December 2017
Update for Skype for Business 2015/Lync 2013
KB 4011255
November 2017
Security update for Skype for Business 2015/Lync 2013
KB 4011179
October 2017
Security update for Skype for Business 2015/Lync 2013
KB 4011107
September 2017
Lynchelploc Security update for Skype for Business 2015/Lync 2013
KB 3213568
September 2017
Update for Skype for Business 2015/Lync 2013
KB 4011046
August 2017
Update for Skype for Business 2015/Lync 2013
KB 3213574
July 2017
Security update for Skype for Business 2015/Lync 2013
KB 3191939
June 2017
Security update for Skype for Business 2015/Lync 2013
KB 3191937
June 2017
Lynchelploc update for Skype for Business 2015/Lync 2013
KB 3191873
May 2017
Update for Skype for Business 2015/Lync 2013
KB 3191876
May 2017
Lynchelploc update for Skype for Business 2015/Lync 2013
KB 3172492
April 2017
Update for Skype for Business 2015/Lync 2013
KB 3178731
April 2017
Security update for Skype for Business 2015/Lync 2013
KB 3172539
March 2017
Update for Skype for Business 2015/Lync 2013
KB 3161988
February 2017
Update for Skype for Business 2015/Lync 2013
KB 3141468
January 2017
Update for Skype for Business 2015/Lync 2013
KB 3127976
December 2016
Update for Skype for Business 2015/Lync 2013
KB 3127934
November 2016
Security update for Skype for Business 2015/Lync 2013
KB 3118348
October 2016
Update for Skype for Business 2015/Lync 2013
KB 3118281
September 2016
Security update for Skype for Business 2015/Lync 2013
KB 3115431
August 2016
Update for Skype for Business 2015/Lync 2013
KB 3115261
July 2016
Update for Skype for Business 2015/Lync 2013
KB 3115033
June 2016
Security update for Skype for Business 2015/Lync 2013
KB 3114944
April 2016
Update for Skype for Business 2015/Lync 2013
KB 3114831
March 2016
Update for Skype for Business 2015/Lync 2013
KB 3114732
February 2016
Update for Skype for Business 2015/Lync 2013
KB 3114502
January 2016
Security update for Skype for Business 2015/Lync 2013
KB 3114351
December 2015
Security update for Skype for Business 2015/Lync 2013
KB 3039776
December 2015
Security update for Skype for Business 2015/Lync 2013
KB 3101496
November 2015
Update for Skype for Business 2015/Lync 2013
KB 3085581
October 2015
Security update for Skype for Business 2015/Lync 2013
KB 3085500
September 2015
Security update for Skype for Business 2015/Lync 2013
KB 3055014
August 2015
Update for Skype for Business 2015/Lync 2013
KB 3054791
June 2015
Skype for Business on Mac client updates
Lync 2013 client updates
Package Name
KB Number
Release Date
Update for Skype for Business 2015/Lync 2013
KB 4462207
April 2019
Update for Skype for Business 2015/Lync 2013
KB 4461557
January 2019
Security update for Skype for Business 2015/Lync 2013
KB 4461487
November 2018
Update for Skype for Business 2015/Lync 2013
KB 4461446
October 2018
Update for Skype for Business 2015/Lync 2013
KB 4092457
September 2018
Update for Skype for Business 2015/Lync 2013
KB 4032250
August 2018
Security update for Skype for Business/Lync 2013
KB 4022225
July 2018
Update for Skype for Business 2015/Lync 2013
KB 4022170
June 2018
Update for Skype for Business 2015/Lync 2013
KB 4018377
May 2018
Update for Skype for Business 2015/Lync 2013
KB 4018334
April 2018
Update for Skype for Business 2015/Lync 2013
KB 4018290
March 2018
Update for Skype for Business 2015/Lync 2013
KB 4011678
February 2018
Update for Skype for Business 2015/Lync 2013
KB 4011638
January 2018
Update for Skype for Business 2015/Lync 2013
KB 4011284
December 2017
Update for Skype for Business 2015/Lync 2013
KB 4011255
November 2017
Security update for Skype for Business 2015/Lync 2013
KB 4011179
October 2017
Security update for Skype for Business 2015/Lync 2013
KB 4011107
September 2017
Security update for Skype for Business 2015/Lync 2013
KB 3213568
September 2017
Update for Skype for Business 2015/Lync 2013
KB 4011046
August 2017
Update for Skype for Business 2015/Lync 2013
KB 3213574
July 2017
Update for Skype for Business 2015/Lync 2013
KB 3191939
June 2017
Security update for Skype for Business 2015/Lync 2013
KB 3191937
June 2017
Lynchelploc update for Skype for Business 2015/Lync 2013
KB 3191873
May 2017
Update for Skype for Business 2015/Lync 2013
KB 3191876
May 2017
Update for Skype for Business 2015/Lync 2013
KB 3172492
April 2017
Update for Skype for Business 2015/Lync 2013
KB 3178731
April 2017
Security update for Skype for Business 2015/Lync 2013
KB 3172539
March 2017
Update for Skype for Business 2015/Lync 2013
KB 3161988
February 2017
Update for Skype for Business 2015/Lync 2013
KB 3141468
January 2017
Update for Skype for Business 2015/Lync 2013
KB 3127976
December 2016
Update for Skype for Business 2015/Lync 2013
KB 3127934
November 2016
Security update for Skype for Business 2015/Lync 2013
KB 3118348
October 2016
Update for Skype for Business 2015/Lync 2013
KB 3118281
September 2016
Security update for Skype for Business 2015/Lync 2013
KB 3115431
August 2016
Update for Skype for Business 2015/Lync 2013
KB 3115261
July 2016
Update for Skype for Business 2015/Lync 2013
KB 3115033
June 2016
Security update for Skype for Business 2015/Lync 2013
KB 3114944
April 2016
Update for Skype for Business 2015/Lync 2013
KB 3114831
March 2016
Update for Skype for Business 2015/Lync 2013
KB 3114732
February 2016
Update for Skype for Business 2015/Lync 2013
KB 3114502
January 2016
Update for Skype for Business 2015/Lync 2013
KB 3039776
December 2015
Security update for Skype for Business 2015/Lync 2013
KB 3114351
December 2015
Security update for Skype for Business 2015/Lync 2013
KB 3101496
November 2015
Update for Skype for Business 2015/Lync 2013
KB 3085581
October 2015
Security update for Skype for Business 2015/Lync 2013
KB 3085500
September 2015
Update for Skype for Business 2015/Lync 2013
KB 3054791
June 2015
Security update for Skype for Business 2015/Lync 2013
KB 3039779
May 2015
Update for Skype for Business 2015/Lync 2013
KB 2889923 KB 2889853
April 2015
Update for Lync 2013
KB 2956174
March 2015
Update for Lync 2013
KB 2920744
February 2015
Update for Lync 2013
KB 2899507
November 2014
Update for Lync 2013
KB 2889929
October 2014
Update for Lync 2013
KB 2889860
September 2014
Update for Lync 2013
KB 2881083
August 2014
Update for Lync 2013
KB 2881070
August 2014
Security Update for Lync 2013
KB 2881013
June 2014
Update for Lync 2013
KB 2850074
June 2014
Update for Lync 2013
KB 2880980
May 2014
Update for Lync 2013
KB 2880474
April 2014
Update for Lync 2013
KB 2863908
March 2014
Security Update for Lync 2013
KB 2850057
September 2013
Update for Lync 2013
KB 2817630
December 2013
Update for Lync 2013
KB 2817465
July 2013
Update for Lync 2013
KB 2768004
May 2013
Update for Lync 2013
KB 2760556
March 2013
Update for Lync 2013
KB 2812461
February 2013
Lync Phone Edition updates
Package Name
KB Number
Release Date
Cumulative update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephone
KB 4019527
April 2017
Cumulative update for Microsoft Lync Phone Edition for HP 4110 and HP 4120 telephones
KB 4019528
April 2017
Cumulative update for Microsoft Lync Phone Edition for Polycom CX500, Polycom CX600, and Polycom CX3000 telephones
KB 4019529
April 2017
Cumulative Update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephones
KB 3050585
May 2015
Cumulative update for Lync Phone Edition for HP 4110 and HP 4120 telephones
KB 3050587
May 2015
Cumulative update for Lync Phone Edition for Polycom CX500, Polycom CX600, and Polycom CX3000
KB 3050588
May 2015
Cumulative update for Lync Phone Edition for Polycom CX700 and LG-Nortel IP Phone 8540 telephones
KB 3050590
May 2015
Cumulative update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephones
KB 2954032
April 2014
Cumulative update for Lync Phone Edition for HP 4110 and HP 4120 telephones
KB 2954033
April 2014
Cumulative update for Lync Phone Edition for Polycom CX500, Polycom CX600, and Polycom CX3000 telephones
KB 2954034
April 2014
Cumulative update for Lync Phone Edition for Polycom CX700 and LG-Nortel IP Phone 8540 telephones
KB 2954035
April 2014
Lync Phone Edition clients on Download Center
Package Name
Release Date
Lync Phone Edition for HP 4110 and HP 4120
April 2017
Lync Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000
April 2017
Lync Phone Edition for Polycom CX700 and LG-Nortel IP Phone 8540
December 2015
Lync Basic 2013 Software
Package Name
Release Date
Lync Basic 2013 (32-bit)
October 2012
Lync Basic 2013 (64-bit)
October 2012
Lync for Mac 2011 client updates
Package Name
KB Number
Release Date
Update for Lync for Mac 2011
KB 3175174
July 2016
Cumulative updates for Lync for Mac 2011
KB 3074981
July 2015
Lync 2010 client updates
Package Name
KB Number
Release Date
Security update for Lync 2010
KB 4025865
September 2017
Security update for Lync 2010
KB 4010732
June 2017
Security update for Lync 2010
KB 4010299
March 2017
Security update for Lync 2010
KB 3188397
October 2016
Security update for Lync 2010
KB 3174301
August 2016
Update for Lync 2010
KB 3171499
June 2016
Security update for Lync 2010
KB 3115871
December 2015
Security update for Lync 2010
KB 3096735
November 2015
Security update for Lync 2010
KB 3081087
September 2015
Cumulative updates for Lync 2010
KB 3072611
July 2015
Lync 2010 Attendant updates
Package Name
KB Number
Release Date
Cumulative update for Lync 2010 Attendant
KB 2842632
July 2013
Lync 2010 Attendee updates
Package Name
KB Number
Release Date
Security update for Lync 2010 Attendee (admin level install)
KB 4025866
September 2017
Security update for Lync 2010 Attendee (admin level install)
KB 4025866
June 2017
Security update for Lync 2010 Attendee (user level install)
KB 4020734
June 2017
Security update for Microsoft Graphics Component on Lync 2010 Attendee (admin level install)
KB 4010301
March 2017
Security update for Lync 2010 Attendee (admin level install)
KB 3188400
October 2016
Description of the cumulative update for the Lync 2010 Attendee - Administrator level installation
KB 3171502
June 2016
Description of the cumulative update for the Lync 2010 Attendee - User level installation
KB 3171496
June 2016
Security update for Lync 2010 Attendee (admin-level installation)
KB 3081089
September 2015
Security update for Lync 2010 Attendee (user-level installation)
KB 3081088
September 2015
Attendant
Package Name/Link
Release Date
Lync 2010 Attendant (32 Bit)
November 2010
Lync 2010 Attendant (64 Bit)
November 2010
Attendee
Package Name/Link
Release Date
Lync 2010 Attendee - Admin Level Install
April 2013
Lync 2010 Attendee - User Level Install
June 2014
Related topics
-->
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 Office 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 which has all the historical list of all the Cumulative Update and Hotfixes that have been published.
Package Name
KB Number
Release Date
Skype for Business Server 2019 Cumulative Update 3
KB 4470124
March 2020
Skype for Business Server 2019 Cumulative Update 2
KB 4470124
December 2019
Skype for Business Server 2019 Cumulative Update 1 Hotfix 1
KB 4470124
September 2019
Skype for Business Server 2019 Cumulative Update 1
KB 4470124
July 2019
Skype for Business Server 2019 tools
Package Name/Link
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 contains all Cumulative Updates that have been released.
Package Name
KB Number
Release Date
Skype for Business Server 2015 Cumulative Update 10 Hotfix 1
KB 3061064
August 2019
Skype for Business Server 2015 Cumulative Update 10
KB 3061064
July 2019
Cumulative update 9 for Skype for Business Server 2015, Web Components Server
KB 4487981
May 2019
Cumulative update 8 for Skype for Business Server 2015, Front End Server and Edge Server
KB 4464355
January 2019
Cumulative update 7 for Skype for Business Server 2015, Front End server and Edge server
KB 4340904
July 2018
Cumulative update 6 Hotfix 2 for Skype for Business Server 2015, Front End server and Edge server
KB 4086059
March 2018
Cumulative update 6 Hotfix 1 for Skype for Business Server 2015, Front End server and Edge server
KB 4074701
January 2018
Cumulative update 6 for Skype for Business Server 2015, Front End server and Edge server
KB 4036312
December 2017
Cumulative update 5 for Skype for Business Server 2015, Front End server and Edge server
KB 4012621
May 2017
Cumulative update 4 Hotfix 1 for Skype for Business Server 2015, Front End server and Edge server
KB 3207506
February 2017
Cumulative update 4 for Skype for Business Server 2015, Front End server and Edge server
KB 3199093
November 2017
Cumulative update 3 for Skype for Business Server 2015, Front End server and Edge server
KB 3149227
June 2016
Cumulative update 2 for Skype for Business Server 2015, Front End server and Edge server
KB 3134260
March 2016
Cumulative update 1 for Skype for Business Server 2015, Front End server and Edge server
KB 3097645
November 2015
Cumulative update for Skype for Business Server 2015, core components
KB 3098601
September 2015
Cumulative update for Skype for Business Server 2015, Front End server and Edge server
KB 3061059
June 2015
Skype for Business Server 2015 tools
Package Name/Link
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 contains all Cumulative Updates that have been released.
Package Name
KB Number
Release Date
Lync Server 2013 Cumulative Update 10 Hotfix 3
KB 4515509
September 2019
Lync Server 2013 Cumulative Update 10 Hotfix 2
KB 4501392
June 2019
Lync Server 2013 Cumulative Update 10 Hotfix 1
KB 4458772
January 2019
Lync Server 2013 Cumulative Update 10
KB 4295703
July 2018
Lync Server 2013 Cumulative Update 9
KB 4019183
July 2017
Lync Server 2013 Cumulative Update 8 Hotfix 4
KB 4014154
March 2017
Lync Server 2013 Cumulative Update 8 Hotfix 3
KB 3210166
January 2017
Lync Server 2013 Cumulative Update 8 Hotfix 2
KB 3212869
December 2016
Lync Server 2013 Cumulative Update 8 Hotfix 1
KB 3200079
November 2016
Lync Server 2013 Cumulative Update 8
KB 3175336
August 2016
Lync Server 2013 Cumulative update 7
KB 3140581
April 2016
Lync Server 2013 Cumulative Update 6 Hotfix 2
KB 3175338
January 2016
Lync Server 2013 Cumulative Update 6 Hotfix 1
KB 3121213
December 2015
Lync Server 2013 Cumulative Update 6
KB 3081739
September 2015
Lync Server 2013 Cumulative Update 5 Hotfix 10
KB 3064728
July 2015
Lync Server 2013 Cumulative Update 5 Hotfix 9
KB 3051951
May 2015
Lync Server 2013 Cumulative Update 5 Hotfix 8
KB 3031065
February 2015
Lync Server 2013 Cumulative Update 5 Hotfix 7.1
KB 3027553
December 2014
Lync Server 2013 Cumulative Update 5 Hotfix 7
KB 3018232
December 2014
Lync Server 2013 Cumulative Update 5 Hotfix 6
KB 3010028
November 2014
Lync Server 2013 Cumulative Update 5 Hotfix 5
KB 3003358
October 2014
Lync Server 2013 Cumulative Update 5 Hotfix 2
KB 2987511
Sept 2014
Lync Server 2013 Cumulative Update 5
KB 2937305
August 2014
Lync Server 2013 Cumulative Update 4
KB 2905040
January 2014
Lync Server 2013 Cumulative Update 3
KB 881682
October 2013
Lync Server 2013 Cumulative Update 2
KB 2835432
July 2013
Lync Server 2013 Cumulative Update 1
KB 2781550
February 2013
Lync Server 2013 Dev tools
Package Name/Link
Release Date
Unified Communications Managed API 4.0 Runtime Cumulative Update
July 2013
Lync Server 2013 SDK
February 2013
Lync 2013 SDK
March 2014
Lync Server 2013 Debugging Tools
January 2014
Lync Server 2013 Persistent Chat Server SDK
October 2013
Unified Communications Managed API 4.0 SDK
February 2013
Unified Communications Managed API 4.0 Runtime
October 2012
UC Enhanced Presence Schemas for Lync Server 2013
October 2012
Pre-configured VHDs
The complete topology consists of 7 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).
Package Name/Link
Release Date
Test Drive - Lync Server 2013 - Part 1 of 3
September 2013
Test Drive - Lync Server 2013 - Part 2 of 3
September 2013
Test Drive - Lync Server 2013 - Part 3 of 3
September 2013
Lync 2013 Tools
Package Name/Link
Release Date
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 2013 downloadable documentation
Package Name/Link
Release Date
Lync Server 2013 Documentation Help File
August 2015
Lync Server 2010 update history
Microsoft Lync Update Mac Pro
KB 2493736 contains all Cumulative Updates that have been released.
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 2010 Dev Tools
Package Name/Link
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 2010 Tools
Package Name/Link
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 2010 downloadable documentation
Package Name/Link
Release Date
Lync Server 2010 Documentation Help File
March 2012
Lync Server 2010 Welcome page
October 2012
IM an Expert for Microsoft Lync Server 2010 Documentation
March 2012
Lync 2010 Release Notes.aspx)
January 2011
Lync Server 2010 Release Notes
January 2011
Lync Server 2010 Planning Tool Readme
January 2011
Lync Server 2010 Edge Server Reference Architecture Diagrams
March 2011
Resource kit (technical reference)
Visit the Microsoft Lync Server 2010 Resource Kit download site to download book chapters individually OR download a .zip file containing all 19 chapters of the resource kit.
Group Chat
Package Name/Link
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
Package Name/Link
Release Date
VHD Test Drive - Lync Server 2010 (Eval) - Part 1 of 2
September 2012
VHD Test Drive - Lync Server 2010 (Eval) - Part 2 of 2
September 2012
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.