Client Versions - Windows

MSI:
Skype for Business downloads and updates - https://technet.microsoft.com/en-us/office/dn788954.aspx

C2R:
Version numbers of update branches for Office 365 clients - https://technet.microsoft.com/en-us/library/mt592918.aspx

Office 365 client update branch releases updates - https://technet.microsoft.com/en-us/office/mt465751


Release Date
Version #
Type
Details
Feb 2017
16.0.4498.1002
SfB 2016
This update fixes the following issues:

·        KB4010282 The location won't be published after you update it in VDIv2 in Skype for Business 2016
·        KB4010280 The GC roster defaults to 200px in Skype for Business 2016
·        KB4010281 The long-term fix for Skype for Business 2016 crashes when you receive a content from a third party RDP implementation
·        KB4010278 An empty conversation item is saved as a missed conversation in Conversation History in Skype for Business 2016
·        KB4010277 Some text annotations are lost when you save a whiteboard as a PNG format in Skype for Business 2016
·        KB4010276 Only the second line shows when you type Japanese/Chinese messages over two lines in Skype for Business 2016
·        KB4010275 Skype for Business 2016 crashes intermittently when you co-author a file in a meeting
·        KB4010273 Some gray strings are invisible in a CW in Skype for Business 2016 after you set Windows theme as the HC mode
·        KB4010272 Strings in the General and the Audio Device sections are clipping if a high DPI is set in Skype for Business 2016
·        KB4010271 A new CustomSafeUrlPrefixes setting doesn't work as expected in Skype for Business 2016
·        KB4010274 Adds support to resize the width of the tab list with a splitter bar in Skype for Business 2016


Feb 2017
15.0.4903.1001
Lync 2013/SfB 2015
This update fixes the following issues:

·        KB4010268 Make High Importance IM messages more prominent in Skype for Business 2015 (Lync 2013)
·        KB4010264 "Search Chat Room History" pushes OK/Cancel buttons off the bottom with controls in Skype for Business 2015 (Lync 2013)
·        KB4010266 The Pin/Unpin button on the screen doesn't work when you present desktop in Skype for Business 2015 (Lync 2013)
·        KB4010267 The GC roster defaults to 200px in Skype for Business 2015 (Lync 2013)
·        KB4010269 The long-term fix for Skype for Business 2015 (Lync 2013) crashes when you receive a content from a third party RDP implementation
·        KB4010270 The location won't be published after you update it in VDIv2 in Skype for Business 2015 (Lync 2013)
·        KB4010265 Group membership isn't synced when you enable the External Identity Manager for SharePoint 2013


Jan 2017
16.0.4483.1000
SfB 2016
This update fixes the following issues:
·        KB3213048 Update to add a web join link to the meeting invite in Skype for Business 2016
·        KB3213047 Meeting link is disabled in Skype for Business 2016 when Exchange servers of both organizations have TNEF disabled
·        KB3213046 SMART system hangs when you update it from Skype for Business 2015 (Lync 2013) to Skype for Business 2016
·        KB3213045 The Close button doesn't reset the search list in a room filter dialog in Skype for Business 2016
·        KB3213043 Some localizations have a button with truncated text and infographic in Skype for Business 2016
·        KB3213041 "Is Typing" area has different gradient in a GC room conversation window in Skype for Business 2016
·        KB3213040 You have no option to share the secondary monitor in application picker in Skype for Business 2016
·        KB3213039 All reopened conversation windows have the same extent after you resize them in Skype for Business 2016
·        KB3213038 You cannot resize the GC room pane if it starts getting too big in Skype for Business 2016
·        KB3213037 IMs are duplicated at the receiver end in Skype for Business 2016
·        KB3213035 Improvements on VDIv2 implementation and high DPI scaling across multiple monitors in Skype for Business 2016
·        KB3213034 Option to suppress the Skype for Business 2016 startup splash screen
·        KB3213026 Topic Feeds don't have an option to only apply to a subset of rooms in Skype for Business 2016

https://support.microsoft.com/en-us/kb/3128049

Jan 2017
15.0.4893.1000
Lync 2013/SfB 2015
This update fixes the following issues:
·        KB3213025 Meeting link is disabled in Skype for Business 2015 (Lync 2013) when Exchange servers of both organizations have TNEF disabled
·        KB3213012 "Is Typing" area has different gradient in a GC room conversation window in Skype for Business 2015 (Lync 2013)
·        KB3213009 The Close button doesn't reset the search list in a room filter dialog box in Skype for Business 2015 (Lync 2013)
·        KB3213008 Changes for a bunch of heartbeat telemetry in Skype for Business 2015 (Lync 2013)
·        KB3213006 All reopened conversation windows have the same extent after you resize them in Skype for Business 2015 (Lync 2013)
·        KB3213005 You have no option to share the secondary monitor in application picker in Skype for Business 2015 (Lync 2013)
·        KB3212998 A new CustomSafeUrlPrefixes setting doesn't work as expected in Skype for Business 2015 (Lync 2013)
·        KB3212995 Adds support to resize the width of the tab list with a splitter bar in Skype for Business 2015 (Lync 2013)
·        KB3212994 IMs are duplicated at the receiver end in Skype for Business 2015 (Lync 2013)
·        KB3212992 Option to suppress the Skype for Business 2015 (Lync 2013) startup splash screen
·        KB3212991 Topic Feeds don't have an option to only apply to a subset of rooms in Skype for Business 2015 (Lync 2013)
·        KB3212990 Strings in the General and Audio Device section are clipping if a high DPI is set in Skype for Business 2015 (Lync 2013)
·        KB3212989 Text for region isn't displayed correctly for non-English characters for Skype for Business 2015 (Lync 2013) meeting invite
·        KB3212988 You cannot resize the GC room pane if it starts getting too big in Skype for Business 2015 (Lync 2013)


Dec 2016
16.0.4471.1000
SfB 2016
This update fixes the following issues:
·        3207140 The call control window flashes on incoming PSTN call in Skype for Business 2016
·        3207139 Online meeting text in the Region field isn't displayed correctly for non-English characters in Skype for Business 2016
·        3207137 The mute and unmute hotkey triggers an unread conversation in Skype for Business 2016 like a missed call
·        3207136 LRS can't start PowerPoint presentation automatically or switch view in Skype for Business 2016
·        3207134 Dial pad UI shows up unexpectedly in the FoR display when a PSTN call from LRS in Skype for Business 2016
·        3207133 Special characters in custom footer aren't displayed correctly in Outlook meeting invitation of Skype for Business 2016
·        3207132 Skype for Business 2016 crashes if conversation window stayed alive too long
·        3207130 "Could not open this link" error when you try to open a UNC link with server name only in Skype for Business 2016


Dec 2016
15.0.4885.1000
Lync 2013/SfB 2015
This update fixes the following issues:
·        3207126 Whiteboard content is truncated when it's saved in Skype for Business 2015 (Lync 2013)
·        3207125 Skype for Business 2015 (Lync 2013) crashes when sign-in if you're your own manager
·        3207123 You expect to hide the entire mode bar in a group chat room in Skype for Business 2015 (Lync 2013)
·        3207121 You cannot sign in Skype for Business 2015 (Lync 2013) reliably due to the MEX document download failures
·        3207119 "RTC_E_INVALID_OBJECT_STATE" error when you sign in Skype for Business 2015 (Lync 2013)
·        3207117 You can't sign in Skype for Business 2015 (Lync 2013) successfully when the computer is unlocked
·        3207115 You cannot sign in Skype for Business 2015 (Lync 2013) if cache loading has issues
·        3207114 Skype for Business 2015 (Lync 2013) may crash when a string is formatted incorrectly
·        3207113 Appear Offline invisible when using EnableAppearOffline and CustomStateURL policies in Skype for Business 2015 (Lync 2013)
·        3207112 Skype for Business 2015 (Lync 2013) should use proxy server to sign in instead of trying direct connection
·        3207111 The performance of user logon process by disabling CEIP is expected to improve in Skype for Business 2015 (Lync 2013)
·        3207109 Overlap occurs on the Options-IM dialog box in Skype for Business 2015 (Lync 2013)
·        3207108 An empty conversation item is saved as a missed conference in Conversation History in Skype for Business 2015 (Lync 2013)
·        3207106 Skype for Business 2015 (Lync 2013) crashes when the string for the call duration is generated
·        3207105 Skype for Business 2015 (Lync 2013) isn't active after you apply "Activate a window by hovering over it with the mouse"
·        3207077 Contact groups don't contain all the people when you enable certain option in Skype for Business 2015 (Lync 2013)
·        3207075 Users can't retrieve Exchange highres photo and publish its availability in Skype for Business 2015 (Lync 2013)
·        3207074 Skype for Business 2015 (Lync 2013) crashes when you use French language to send IM to a distribution group
·        3207073 Letters flash when you type Japanese or Chinese or English in an IM box in Skype for Business 2015 (Lync 2013)
·        3207072 Persistent chat notification settings aren't loaded after you restart or sign back in Skype for Business 2015 (Lync 2013)
·        3207070 Windows hotkey triggers unread conversation windows like a missed call in Skype for Business 2015 (Lync 2013)
·        3207069 Update to add a web join link to the meeting invite in Skype for Business 2015 (Lync 2013)
·        3207068 Skype for Business 2015 (Lync 2013) clients can't resume inbound media bypass calls from on-hold



Nov 2016
16.0.4456.1001
SfB 2016
This update fixes the following issues:
·        3201360 Participants' videos and meeting content aren't displayed when you switch participant views in Skype for Business 2016
·        3200787 Some Lync 2013 and Skype for Business 2016 functionalities don't work after you migrate to Exchange vNext
·        3200795 The ampersand character appears incorrectly in display names in the IM conversation window in Skype for Business 2016
·        3200793 The taskbar notification doesn't flash for every incoming IM except the first time in Skype for Business 2016
·        3200792 The taskbar icon of Skype for Business 2016 doesn't flash when you receive new message in a persistent chart room
·        3200791 Skype for Business 2016 crashes if you change the size of the shared screen
·        3200790 You are able to wrongly take another identity in a conference call in Skype for Business 2016


Nov 2016
15.0.4875.1001
Lync 2013/SfB 2015
This update fixes the following issues:
·        3200788 "The web page was not loaded in response to you clicking the link" error in Lync 2013 (Skype for Business)
·        3200787 Some Lync 2013 and Skype for Business 2016 functionalities don't work after you migrate to Exchange vNext
·        3200785 You expect to add usage telemetry to understand VDI V2 adoption and usage in Lync 2013 (Skype for Business)
·        3200784 You see a blue box instead of main video when joining a meeting from URL in Lync 2013 (Skype for Business)
·        3200783 You are not able to sign in Lync 2013 (Skype for Business) after changing your user account password
·        3200782 Lync 2013 (Skype for Business) credential prompt comes up behind other active windows makes you ignore it
·        3200781 UI changes for toast notification when an incoming call for a boss in Lync 2013 (Skype for Business)
·        3200780 You are able to wrongly take another identity in a conference call in Lync 2013 (Skype for Business)
·        3200779 Lync 2013 (Skype for Business) doesn't scale properly among monitors that have different DPI settings
·        3200778 Wrong caller or callee pool information in QoE reports after you install KB2889923 in Lync 2013 (Skype for Business)
·        3200776 The taskbar notification doesn't flash for every incoming IM except the first time in Lync 2013 (Skype for Business)

Oct 2016
16.0.4444.1000
SfB 2016 – Sec update
This security update contains fixes for the following security issue:
·        3193844 Internet Explorer 11 freezes when you view a webpage with large flow and Skype for Business Browser Helper is enabled
·        3193845 Skype for Business 2016 crashes when you're sharing an application
·        3193846 No notification shows when you try to exit Skype for Business 2016
·        3195495 Skype for Business doesn't open the Outlook window when you try to "Find Previous Conversations"
·        3193843 Lync 2013 (Skype for Business) connects through the DirectAccess tunnel when you connect to an external network

Oct 2016
15.0.4867.1000
Lync 2013/SfB
This security update also contains fixes for the following nonsecurity issues:

·        3193843 Lync 2013 (Skype for Business) connects through the DirectAccess tunnel when you connect to an external network
·        3195495 Skype for Business doesn't open the Outlook window when you try to "Find Previous Conversations"


Sep 2016
16.0.4432.1000
SfB 2016
This update fixes the following issue:

3186689 Skype for Business 2016 crashes when you click the ORGANIZATION tab in contact card for a user who is his own manager


Sep 2016
15.0.4859.1002
Lync 2013/SfB
This update fixes the following issues:

·        3188806 Slow performance to merge two conference calls into one call in Lync 2013 (Skype for Business)
·        3188248 Block the collection of Census data within Lync 2013 (Skype for Business)
·        3186686 Network change doesn't refresh proxy cache on Lync 2013 (Skype for Business)
·        3186687 Some non-English-based characters in the custom footer cannot be displayed correctly in the Outlook meeting invitation
·        3186688 Blank window is displayed when you join a meeting without audio devices in Lync 2013 (Skype for Business)
·        3188249 Lync 2013 (Skype for Business) crashes if you change the size of the shared screen
·        3188250 Lync 2013 (Skype for Business) VDI client crashes after you install KB3115033 and HDX RealTime Optimization Pack 2.1


Aug 2016
16.0.4417.1000
SfB 2016 – Sec update
This security update resolves vulnerabilities in Skype for Business 2016 that could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document.

Aug 2016
15.0.4849.1000
Lync 2013/SfB – Sec update

This security update contains fixes for the following nonsecurity issues:

·        3179659 "No Matches" is displayed incorrectly in partial-name-search in Lync 2013 (Skype for Business)
·        3183215 A blank window appears if you join a meeting without audio devices in Lync 2013 (Skype for Business)
·        3179658 Anonymous meeting join fails in Lync 2013 (Skype for Business)



July 2016
16.0.4405.1000
SfB 2016
This update fixes the following issues:
·        3172203 Screen may get mispainted when you view screen sharing on a high resolution sceen in Skype for Business 2016
·        3172205 Update enables VBSS in a conference call in Skype for Business 2016
·        3172208 Skype for Business 2016 cannot get the free/busy information if it's running in Windows 10


July 2016
15.0.4841.1000
Lync 2013/SfB
This update fixes the following issues:

·        KB 3172197 Notifications for incoming calls don't always appear in Lync 2013 (Skype for Business)
·        KB 3172193 Can't change presenters by using Meeting Options when a room resource is added in Lync 2013 (Skype for Business)
·        KB 3172186 Lync 2013 (Skype for Business) is stuck when you try to sign in
·        KB 3172184 Can't make Enterprise Voice calls when Lync 2013 (Skype for Business) connects to the external network
·        KB 3172182 Lync client disconnects frequently when you use Lync 2013 (Skype for Business)

June 2016
16.0.4390.1000
SfB 2016
This update fixes the following issues:
·        3169044 Skype for Business 2016 freezes when you are in a desktop sharing process
·        3166231 Skype for Business 2016 crashes when you try to open the contact card of a consumer user
·        3166230 Missing notifications of missed calls when Exchange UM isn't enable in Skype for Business 2016
·        3166228 Skype for Business 2016 crashes during call transfer
·        3159724 Skype for Business 2016 freezes or crashes when you start a desktop sharing
·        3159723 Skype for Business 2016 freezes when you switch the language from English to Thai if MAPI profile is set

https://support.microsoft.com/en-us/kb/3115087

June 2016
15.0.4833.1001
Lync 2013/SfB
This update fixes the following issues:

·        KB 3169048 Specifics the E_UNEXPECTED error when you join a meeting in Lync 2013 (Skype for Business)
·        KB 3169046 Adds a report that defines sign-in failures along with the Heartbeat Telemetry in Lync 2013 (Skype for business)
·        KB 3169045 Shared content can't be auto accepted when ACP is enabled in Lync 2013 (Skype for business)
·        KB 3169041 The "OK" Button may be dimmed when you select a response group in the Forward Calls settings in Lync 2013 (Skype for business)
·        KB 3166223 "You have been removed from this conversation" error when you try to join a meeting by using Meet Now in Lync 2013 (Skype for Business)
·        KB 3166222 Call menu option doesn't show outlook contact's phone numbers when you do calls in Skype for Business
·        KB 3166221 Repeat disconnections when you have multiple SIP connections in Lync 2013 (Skype for Business)
·        KB 3166220 Can't join a meeting after the scheduled audio and video meeting fails to join in Lync 2013 (Skype for Business)
·        KB 3166218 Update UI to auto display a shared presentation when a desktop sharing is started in Lync 2013 (Skype for Business)
·        KB 3166217 PC Mic and Speakers option is missing from the "Audio device" Options panel in Lync 2013 (Skype for Business)
·        KB 3166216 Drop-down selection for "Sign in as" isn't honored by Lync 2013 (Skype for Business)
·        KB 3166215 Heavy traffic to domain-based URLs when Lync 2013 (Skype for Business) connects to Exchange using Autodiscover
·        KB 3166213 "Out of Office" status note continues to show beyond the specified time period on your contact list in Lync 2013 (Skype for Business)
·        KB 3166212 Internet Explorer freezes when Skype for Business Browser Helper is enabled
·        KB 3159722 The taskbar icon for Lync 2013 (Skype for Business) doesn't glow when you miss incoming messages in a group chat room
·        KB 3159721 "Make sure that you are signed in to Skype for Business" error when you send a meeting invite in Skype for Business
·        KB 3159719 A contact group with this name already exists" error occurs when you delete a contact and re-sign in Skype for Business
·        KB 3159718 Topic feed in persistent chat is always case-sensitive for non-English characters in Lync 2013 (Skype for Business)
·        KB 3159716 "The organizer disabled IM" error occurs in Skype for Business when you join an updated meeting that has IM enabled
·        KB 3159715 Media relay servers aren't configured for Application Sharing in Skype for Business that uses Citrix RTOP 2.0
·        KB 3115012 Desktop sharing button is dimmed in Skype for Business during a peer-to-peer video call if AllowIPVideo is set to False
·        KB 3115005 Lync 2013 (Skype for Business) may not display any phone numbers for an Outlook contact to do a call
Known issues:
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business



Apr 2016
16.0.4366.1000
SfB 2016 – Sec update
This security update contains fixes for the following issues:
·        3153360 Buffer may overrun when you use Skype for Business 2016
·        3153361 Black screen or slow screen updating during desktop sharing in Skype for Business 2016


Apr 2016
15.0.4815.1000
Lync 2013/SfB  -  Sec update
This security update contains fixes for the following issues:
·        3153357 Buffer may overrun when you use Lync 2013 or Skype for Business
·        3153356 Can't join a Lync online's audio/video meeting in Skype for Business that has a proxy server set


Mar 2016
16.0.4351.1000
SfB 2016
This update fixes the following issues:
·        3144949 Skype for Business 2016 crashes randomly when you try to select an instant message conversation window from taskbar
·        3144948 Skype for Business 2016 crashes randomly after you make the display DPI size larger in Windows
·        3144947 The "Skype for Business" text on the title bar is displayed in the wrong language in Skype for Business 2016
·        3143165 Instant messages don't display exact time in Skype for Business 2016 that has Korean or Japanese language pack installed

Known Issues:
·        None

Mar 2016
15.0.4805.1000
Lync/SfB 2013
This update fixes the following issues:
·        KB 3144945 Video rendering region is displayed incorrectly in Skype for Business using Citrix RTOP 2.0
·        KB 3144942 "E_UNEXPECTED" error occurs randomly when you join a meeting in Lync 2013 (Skype for Business)
·        KB 3143163 Memory footprint increases when you send or receive a file that is larger than 5 MB in Lync 2013 (Skype for Business)
·        KB 3143162 Present button is missing for a presenter in Lync 2013 (Skype for Business) when the first user joins a meeting as guest
·        KB 3143161 "too many matches to show them all" message and Lync 2013 (Skype for Business) crashes when you search for an item
·        KB 3143160 Audio option for joining a meeting is unavailable when "Do not join audio" option is selected in Lync 2013 (Skype for Business)
·        KB 3143159 "Skype for Business" text in title bar is displayed in the wrong language in Skype for Business
·        KB 3143158 Outlook in online mode freezes when you update an online meeting
·        KB 3143157 Lync 2013 (Skype for Business) hangs when you switch the language from English to Thai
·        KB 3114811 Delay of more than 30 seconds when you send or receive an IM in Lync 2013 (Skype for Business)
·        KB 3114810 Windows Explorer opens parent directory when you click a child directory link in Lync 2013 (Skype for Business)

Known issues
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business


Feb 2016
16.0.4339.1000
SfB 2016
This update fixes the following issues:
·        3136424 Wrong monitor is shared in Skype for Business 2016 when you have a multi-monitor setup
·        3136401 Can't log on to Skype for Business 2016 automatically after the December 2015 update is installed

Known Issues:
·        None


Feb 2016
15.0.4797.1000
Lync/SfB 2013
This update fixes the following issues:
·        KB 3136422 Call transfer button is missing when you answer a RGS call in skype for Business that is paired with a Polycom CX600
·        KB 3136421 Can't logon Lync 2013 (skype for Business) automatically after you install December 2015 update on a non-domain computer
·        KB 3136420 Lync 2013 client crashes when you park outline voice calls
·        KB 3136419 All options in the right-click menu aren't working when you transfer a call to a searched user in Skype for Business
·        KB 3136418 Wrong file size is displayed when you transfer a large file that is greater than two Gigabyte in Lync 2013 (Skype for Business)
·        KB 3136400 No missed call notification generated in Lync 2013 (Skype for Business)

Known issues
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business


Jan 2016
16.0.4324.1000
SfB 2016
This update improves the reliability, stability, and performance of the new client.


Jan 2016
15.0.4787.1002
Lync/SfB 2013
This update fixes the following issues:
·     KB 3128747 Video is missing in a Skype for Business 2015 meeting recording after the December 2015 security update 3114351 is installed
·     KB 3121276 Title bar displays "Lync" after you install the November 2015 update for Lync 2013 (Skype for Business 2015)
·     KB 3132307 Event ID 1000 is logged and Lync 2013 (Skype for Business) client crashes when you reconnect a remote session
·     KB 3132305 "An unknown participant is now joining" message is displayed in a transferred call in Lync 2013 (Skype for Business)
·     KB 3132304 The Lync 2013 (Skype for Business) user interface of a call monitor flashes constantly
·     KB 3114687 "The address type is not valid" error when you sign in to Lync 2013 (Skype for Business) by using domain\username format

Known issues:
·     KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·     KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·     KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business


Dec 2015
16.0.4297.1000
SfB 2016 Sec update
This security update resolves vulnerabilities in Skype for Business 2016 that could allow remote code execution if a user opens a specially crafted document or visits a webpage that contains specially crafted embedded fonts.

This security update contains the following improvement:
·        Renames the "Add-Ins" string to the "Add-ins" string for consistency.

This security update also contains fixes for the following nonsecurity issues:
·        KB 3114303 App sharing sessions fails in Skype for Business 2016 when the transport thread is busy
·        KB 3114299 Media setup may fail and all media diagnostics information is missing in Skype for Business 2016



Dec 2015
15.0.4779.1001
Lync/SfB 2013 Sec update
This update fixes the following issues:

·        Adds Cloud-based Discovery
·        Uses SSO to autodetect SIP address and start sign in


This security update also contains fixes for the following nonsecurity issues:

·        When you are in a public switched telephone network (PSTN) call, and you open a Conversation Window Extension (CWE), the call option controls are covered by the CWE without any way to access the controls without closing the CWE.
·        Lync client doesn't show all the fonts if the computer has more than 1,000 fonts.
·        3115883 "You need to install additional updates" error message when you try to start Lync 2013
·        3112863 Lync 2013 (Skype for Business) sends corporate error reporting (CER) data after every PC-to-PC and conference call
·        3112864 Media setup may fail and all media diagnostics information is missing in Lync 2013 (Skype for Business)
·        3114326 A hyperlink that is copied from Internet Explorer can't be pasted into Lync 2013 (Skype for Business)
·        3114325 Response Group Service group member notification is displayed frequently in Lync 2013 (Skype for Business)
·        3112796 Adds a new GPO to control which proxy setting is used when both PAC and manual proxy are used in Skype for Business
·        3101548 Attendees can't see the shared desktop when they join an online meeting as anonymous users in Lync 2013

Known issues:
·        After you install this security update, when you play back a meeting recording that you made in Skype for Business 2015, the video track is missing although the audio track remains intact.


Nov 2015
16.0.4297.1000
SfB 2016 Sec update
This security update resolves vulnerabilities in Skype for Business 2016. These vulnerabilities could allow remote code execution if a user opens a specially crafted document or goes to an untrusted webpage that contains embedded OpenType fonts. Or, these vulnerabilities could allow information disclosure if an attacker invites a user to an instant message session and then sends that user a message that contains specially crafted JavaScript content.


Nov 2015
15.0.4771.1000
Lync/SfB 2013 Sec update
This update fixes the following issues:
·        After you install this security update, "Lync" is displayed in the title bar of the Contacts list. This issue occurs if you have configured the Skype for Business user interface to display in the Lync 2013 (Skype for Business) client.

This security update fixes the following nonsecurity-related issues:
·        KB 3085626 Sent emoticons are displayed differently in instant messages between Lync 2010 or 2013 and Skype for Business clients
·        KB 3085629 Large conversations in Lync 2013 (Skype for Business) are lost in the Conversation History folder in Outlook
·        KB 3085630 Skype for Business client crashes when you search for a contact in the Skype Directory tab
·        KB 3085631 No phone numbers are displayed for a user whose photo is disabled in the contact list in Lync 2013 (Skype for Business)
·        KB 3085632 The Current Conversations option is missing when you do a consultative transfer in Lync 2013
·        KB 3085633 Call button is unavailable (grayed out) for a meeting organizer in Lync 2013 (Skype for Business)
·        KB 3087562 Registry key isn't honored when you customize the title name of user interface in Skype for Business
·        KB 3101307 Lync 2013 (Skype for Business) users can't save meeting contents to a redirected folder that's in Offline mode

Known Issues:
·        None


Sep 2015
16.0.4288.1000
SfB 2016 Sec update
This security update resolves vulnerabilities in Skype for Business 2016 that could allow remote code execution if a user opens a specially crafted document or goes to an untrusted webpage that contains embedded OpenType fonts. 

This security update also contains fixes for the following nonsecurity issues:
·        Invalid speech signal level when you convert a stereo microphone array to monaural. This results in noise or a full echo.
·        When you try to start the co-edit option from sharing, you receive the following error message: "Operating system is not presently configured to run this application."
·        No mirrors occur when you open Skype Meeting in Microsoft Outlook for some languages.
·        The co-author option doesn't work.
·        All instances of "co-edit" are renamed "co-author."


Sep 2015
15.0.4753.1000
Lync/SfB 2013 Sec update
This update fixes the following issues:

This security update also fixes the following non-security-related issues:
·        3088660 Skype for Business or Lync 2013 SDK provides the same window handle value for different PSTN conversation windows
·        3088664 The "Copy" and "Select All" options are disabled for the first instant message in Skype for Business or Lync 2013
·        3088665 Adds an AllowSavePassword Group Policy setting to remove the Save Password check box in Skype for Business or Lync 2013
·        3088666 Update changes the text label from "Skype call" to "Skype for Business call" in Skype for Business or Lync 2013
·        3088667 "c0000005" error occurs and Skype for Business or Lync 2013 crashes when you upload a file to a persistent chat room
·        3088668 Non-ASCII characters are removed from search box in Skype for Business or Lync 2013
·        3088669 Your phone numbers disappear when you expand a distribution group in contact list in Skype for Business or Lync 2013
·        3088670 Call transfer doesn't transfer a call to the contact that you select in Skype for Business or Lync 2013
·        3088671 The updated address book can't be downloaded in Skype for Business or Lync 2013

Known Issues:
·        3099414 You can't record after you install MS15-097 for Lync 2013 (Skype for Business)


Aug 2015
15.0.4745.1000
Lync/SfB 2013 Sec update

Lync 2013 SP1
This update fixes the following issues:
·        This security update resolves vulnerabilities in Microsoft Lync 2013. These vulnerabilities could allow remote code execution if a user opens a specially crafted document or goes to an untrusted webpage that contains embedded TrueType or OpenType fonts.

Known Issues:
·        None



July 2015
15.0.4737.1001
Lync/SfB 2013
This update fixes the following issues:
·        KB 3076504 CPU usage is reduced by emoticon animations that are active in multiple conversations in Skype for Business or Lync 2013
·        KB 3072756 Update UI to better display presence information in Skype for Business when calendar is set to out of office
·        KB 3072755 Chinese Contact Group name is displayed in garbled characters in Skype for Business or Lync 2013
·        KB 3072754 Update user interface for group contact counts in contact lists in Skype for Business or Lync 2013
·        KB 3072753 Active Directory contact's name is changed to the phone number in the contact list of Skype for Business or Lync 2013
·        KB 3072752 Typed characters take a long time to display in the message input box in Skype for Business or Lync 2013
·        KB 3072751 Add the click-to-call feature for RCC-enabled users from the contact card in Skype for Business or Lync 2013
·        KB 3072750 Update changes the text label from participant code to Conference ID in Skype for Business or Lync 2013

Known Issues:
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051516 "Copy" and "Select All' menu items are disabled for the first instant message in a conversation in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business



June 2015
15.0.4727.1001
Lync/SfB 2013
This update fixes the following issues:
·        KB 3067960 Incoming instant messages cannot be read by screen readers in Skype for Business or Lync 2013
·        KB 3065450 Anonymous user cannot join audio, video, or application sharing sessions in a meeting by using Skype for Business
·        KB 3065449 Strings before "_" in an SIP address are not converted to hyperlinks in an instant message window in Skype for Business
·        KB 3065448 Call is disconnected when you make or accept it as anonymous agent of a response group or delegate in Skype for Business
·        KB 3065447 Clipboard content appears when you press "Alt Gr" + "V" keys to input "@" in Skype for Business instant message window
·        KB 3065446 First location information update after Skype for Business signs in doesn’t follow location update interval time
·        KB 3065445 "Copy message only" feature does not work when you copy a single instant message bubble in Skype for Business


Known Issues:
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051516 "Copy" and "Select All' menu items are disabled for the first instant message in a conversation in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business



May 2015
15.0.4719.1000
Lync/SfB 2013 Sec update

This update fixes the following issues:
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051516 "Copy" and "Select All" menu items are disabled for the first instant message in a conversation in Skype for Business
·        KB 3053114 Cannot open links without the "http://" prefix and the links that are to a OneNote page in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business
·        KB 3063382 Non-English localized strings are not updated in Outlook after you apply security update 3039779 for Skype for Business
·        KB 3063390 Arabic text is not right-to-left aligned in meeting invitation body when you create a Skype for Business online meeting

Improvements and fixes

This security update provides improvements that are described in the following article:
·        May 12, 2015, security update for Skype for Business (Lync 2013) changes text strings in Outlook add-in
This security update resolves nonsecurity issues that are described in the following articles:
·        KB 3057563 Outgoing calls are disconnected in Skype for Business or Lync 2013 when you press the Spacebar or the Enter key
·        KB 3057559 Skype for Business or Lync 2013 client certificates do not begin to renew within the correct time before they expire
·        KB 3057558 User interface is misaligned in tabbed conversation that is created after an RCC user ends a call in Skype for Business
·        KB 3057556 "An error occurred during this screen presentation" error occurs in application sharing conference in Skype for Business
·        KB 3057551 Cannot paste an image into an instant message in Skype for Business when you copy the image from Internet Explorer
·        KB 3057550 Update enables users to copy instant messages without author name and time stamp in Skype for Business (Lync 2013)
·        KB 3057549 The "Allow with URL" feature does not work in a client policy for Skype for Business in a Lync Server 2013 environment
·        KB 3057548 Buttons are not displayed on sharing toolbar when you use full screen in a sharing session in Skype for Business
·        KB 3057546 Lync 2013 does not show AD DS user's display name in the toast notification of the first incoming PSTN call
·        KB 3057545 HYPERLINK "" is displayed as a prefix of a pasted text in Notepad when you copy the text from Skype for Business
·        KB 3057518 Presence status of a contact isn't updated in your Skype for Business after the contact disconnects from network
·        KB 3057517 Contact card appears when you click a URL that contains the "@" character in a received message in Skype for Business
·        KB 3057516 Skype contacts can see your presence status after you remove them from contact list in Skype for Business
·        KB 3054008 CPU usage increases largely when you have multiple animated emoticons in conversations in Skype for Business
·        KB 3051517 Receiver cannot open or save transferred files in a chat room in Skype for Business
·        KB 3064056 Skype for Business that is connected to a wireless network crashes during an audio/video or application sharing session

Known Issues:
·        None


April 2015
15.0.4711.1002
Lync/SfB 2013

SfB RTM
This update fixes the following issues:
·        KB 3052676 Lync 2013 crashes when you add a video to an existing audio call that is to Polycom RMX 2000 (v8.4)
·        KB 3052678 The setting for the "team call" feature is deleted after you sign in to Lync 2013
·        KB 3052679 Menu bar disappears in Lync 2013 and Skype for Business even you set the "AlwaysShowMenu" registry value setting to "1"

Known Issues:
·        KB 3051158 "Help isn't working" error occurs when you open the "Skype for Business Help" window in Skype for Business
·        KB 3051516 "Copy" and "Select All' menu items are disabled for the first instant message in a conversation in Skype for Business
·        KB 3051517 Receiver cannot open or save transferred files in a chat room in Skype for Business
·        KB 3053114 Cannot open links without the "http://" prefix and the links that are to an OneNote page in Skype for Business
·        KB 3051160 Cannot join meetings by using Lync 2010 after you install OneDrive for Business
·        KB 3053998 Memory leak occurs when you transfer a file that is larger than 5 megabytes (MB) in a conversation in Skype for Business
·        KB 3054008 CPU usage increases largely when you have multiple animated emoticons in conversations in Skype for Business


Mar 2015
15.0.4701.1000
Lync 2013
This update fixes the following issues:
·        KB 3040496 Lync 2013 does not show who changes content in a shared whiteboard in an online meeting
·        KB 3040495 Cannot scroll down text that is more than two pages in whiteboard in Lync 2013
·        KB 3040494 "We couldn't connect to the presentation" error occurs when an anonymous user shares a desktop in a meeting in Lync 2013
·        KB 3040493 Lync Online users cannot search contacts in Lync 2013 in an environment that has a proxy server deployed
·        KB 3040491 Meeting does not start if you click a meeting URL in a meeting invitation email message when Lync 2013 is signing in
·        KB 3040489 Text labels for toll and toll-free numbers disappear in a meeting invitation when you create the meeting in Lync 2013
·        KB 3040488 Outlook 2010 freezes, and then crashes when it runs together with Lync 2013
·        KB 3040487 "We found a problem with you Lync Meeting. Please leave Lync client running for 15 mins" error occurs in Lync 2013


Known Issues:
·        KB 2898357 Screen readers cannot read aloud keystrokes during a Lync 2013 application or desktop sharing session in Windows
·        KB 2932389 Persistent Chat file transfer fails between an external user and an internal user in Lync 2013


Feb 2015
15.0.4699.2000
SfB Beta Release

Jan 2015
15.0.4685.2000
SfB Beta Release

Dec 2014
15.0.4673.1000
Lync 2013
This update fixes the following issues:
·        KB 3017596 Sharing session stops in Lync 2013 when the display resolution of a shared monitor is changed
·        KB 3004595 E.164 normalized telephone numbers are not displayed in Lync 2013 contact cards or the "Call" menu

Known Issues:
·        KB 2898357 Screen readers cannot read aloud keystrokes during a Lync 2013 application or desktop sharing session in Windows
·        KB 2932389 Persistent Chat file transfer fails between an external user and an internal user in Lync 2013



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