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Skype for Business on Mac CU3 is here


Good news, Microsoft are continuing their relatively fast release of features and improvements to the new Skype for Business Mac client

This release includes the following:

–          Peer-to-Peer desktop sharing

–          Additional USB Device Support

–          Several other improvements for the client

Desktop sharing in P2P Conversations. In our last update, we introduced the capability to share during an audio conversation and promised that we would add sharing for IM/Chat sessions as well.  With this release, we now have included that support, so you can now share during a P2P session for audio and IM.  We hope you find it useful. Please take the time to let us know what scenarios we have enabled for you. Is this for helpdesk? Does it make collaboration frictionless when you can quickly share your screen? Perhaps other scenarios? Let us know.

Additional USB Device Support. As we get feedback and combine that with telemetry from the client, we note there are some USB devices that are not performing as expected. With this update, we have certified 5 devices and will continue to add devices going forward. That list includes the Polycom CX300, Jabra Speak 510, Jabra Evolve 65, Plantronics Blackwire C520-M and the Logitech Webcam C930e.

Further Improvements.  We are always excited to share what we have added to the client but equally important is the work for existing experiences. Here are just a few of the improvements we have added. As always, consult the release notes included with this update to get further details.

Customers report duplicate contacts during search. This was related to caching. With this update, impacted customers should take the action to log out and delete their sign-in information. Sign back in and let us know if that has solved the issue.


Those who already have the client can use the Microsoft AutoUpdate (MAU) to get the latest.


Release Notes:


Known Issues:

Customers have reported that CPU usage was high during screen sharing. Work has been done and the addition of VBSS viewing should help there. We also expect to add VBSS sharing in a future update which will continue to improve performance.

In certain scenarios, customers reported issues with call transfer. We have updated this experience to hopefully remove those issues. Please try this out and let us know via the forums if it’s working better for you.

System requirements:

  • Skype for Business Server 2015 or Lync Server 2013 or Skype for Business Online
  • OSX 10.11 (El Capitan) or OSX 10.12 (Sierra)
  • Outlook Mac build 15.27 (161010) required for Outlook integration

About the author

Tom Arbuthnot

A Microsoft MVP and Microsoft Certified Master, Tom Arbuthnot is Principal Solutions Architect at Microsoft Collaboration specialists Modality Systems.

Tom stays up to date with industry developments and shares news and his opinions on his blog, Microsoft Teams Podcast and email list. He is a regular speaker at events around the world.

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Tom Talks Microsoft Teams and Microsoft 365 news and opinions