Lync 2013 / SfB 2015 Client Update – September 2016

This week’s update (kb3118281) takes the Office 2013-based Lync/SfB client from 15.0.4849.1000 to 15.0.4859.1000 (although it’s reported elsewhere as 15.0.4859.1002).

What’s Fixed

This update fixes the following issues:

  • Kb3188806 Slow performance to merge two conference calls into one call in Lync 2013 (Skype for Business)
  • Kb3188248 Block the collection of Census data within Lync 2013 (Skype for Business)
  • Kb3186686 Network change doesn’t refresh proxy cache on Lync 2013 (Skype for Business)
  • Kb3186687 Some non-English-based characters in the custom footer cannot be displayed correctly in the Outlook meeting invitation
  • Kb3186688 Blank window is displayed when you join a meeting without audio devices in Lync 2013 (Skype for Business)
  • KB3188249 Lync 2013 (Skype for Business) crashes if you change the size of the shared screen
  • Kb3188250 Lync 2013 (Skype for Business) VDI client crashes after you install KB3115033 and HDX RealTime Optimization Pack 2.1

What’s New / Changed

Nothing documented.

Known Issues

None documented.


There are no changes here from recent updates, so if you’re already current you only need the patch itself, below under “Download”. If however your patching isn’t to current, then you’ll need to check you have *all* of these pre-req’s. The Office 2013 SP1 requirement still applies if you’re using Outlook 2010. (Lync 2013 in all of its flavours – e.g. Lync Basic – is still a component of Office 2013).



Current Version


Update for Office 2013 (KB3054853) (NOTE 1 BELOW) 1.0 9 June 2015
LyncHelpLoc (Kb3039776) 1.0 1 December 2015
Microsoft Office 2013 Language Pack Service Pack 1 (KB2817427) 1.0 13 February 2014


NOTE1: “You do not have to apply update KB3054853 if you applied the April 14, 2015, update (KB2889923) or the May 12, 2015, security update (KB3039779) for Lync 2013 (Skype for Business)”


This is the client fix itself:

  • x86 (lync2013-kb3118281-fullfile-x86-glb.exe)
  • x64 (lync2013-kb3118281-fullfile-x64-glb.exe)


Maybe – I’m not sure. Windows Update thrust this one upon me before I realised it was out, so I let it do the install and went to bed. When I woke the machine had rebooted, but that could have been any of the other updates it applied. (I’d exited Outlook and SfB in an effort to stave off a reboot).

Before / After



SfB 15.0.4849.1000 MSO 15.0.4849.1000 SfB 15.0.4859.1000 MSO 15.0.4849.1000
Sept2016Lync2013ClientUpdate-Before Sept2016Lync2013ClientUpdate-After


Revision History

8th September 2016: This is the initial post.


– G.

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