Lync 2013 / SfB 2015 Client Update – May 2018

Last month’s client update took us to 15.0.5023.1000, and now Kb4018377 increments us to 15.0.5031.1000.

What’s Fixed

Just the one update this month:

  • Kb4133098 Location is still displayed even if UseLocationForE911Only is set to true in Skype for Business

What’s New / Changed

Nothing documented.

Known Issues

Nothing documented.


Move on – nothing to see here.

If however your patching isn’t to current 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 (kb3191937) 1.0 22 May 2017
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-kb4018377-fullfile-x86-glb.exe)
  • x64 (lync2013-kb4018377-fullfile-x64-glb.exe)


I have all the pre-req’s already installed, had exited the client before we started & was not prompted for a reboot.

Before / After



SfB 15.0.5023.1000 MSO 15.0.5023.1000 SfB 15.0.5031.1000 MSO 15.0.5023.1000
BeforeKb4018377-May2018 AfterKb4018377-May2018

Thanks Guy!

If you want to be on top of these updates as soon as they’re released, my coal-mine canary is Guy Bachar. Follow him on Twitter for the updates as they happen!

Revision History

5th May 2018: This is the initial post.


– G.

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