January 2019 cumulative update 6.0.9319.537 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime

This cumulative update fixes several issues in Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime. The version number of this update is 6.0.9319.537.

The cumulative update fixes the following issues:

• KB 4464374 Can't create a Skype meeting on behalf of someone else by using the Outlook for Mac client in Skype for Business Server 2015
• KB 4464375 The Test-CsPhoneBootstrap and Test-CsClientAuth cmdlets not working in Skype for Business Server 2015 that's installed on Windows Server 2016
• KB 4464372 Skype for Business Server 2015 UCMA services crash on service startup when running on Windows Server 2016
• KB 4464373 Can't escalate a peer-to-peer call to a conference if VbSS is used in screen-sharing in Skype for Business on Mac
• KB 4464371 Support Rate my Call feature for Skype for Business UCWA clients in Skype for Business Server 2015
• KB 4458678 Skype for Business VbSS application sharing not working for UCMA based Contact Center in Skype for Business Server 2015

This cumulative update fixes the issues that were previously listed in the following Microsoft Knowledge Base articles:

• 4340912 July 2018 cumulative update 6.0.9319.534 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 4086058 March 2018 cumulative update 6.0.9319.516 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 4036310 December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 4012657 May 2017 cumulative update 6.0.9319.281 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 3207504 February 2017 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 3199095 November 2016 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 3149232 June 2016 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 3097649 November 2015 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
• 3063353 June 2015 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime

To install the cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime, you must follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064) on computers that are running the following server roles:

• Skype for Business Server 2015 - Standard Edition server
• Skype for Business Server 2015 - Enterprise Edition - Front End server and Back End server
• Skype for Business Server 2015 - Edge server
• Skype for Business Server 2015 - Stand-Along Mediation server
• Skype for Business Server 2015 - Director server
• Skype for Business Server 2015 - Persistent Chat server
• Skype for Business Server 2015 - Video Interop server

Note The Cumulative Server Update Installer applies all updates for the appropriate server role in one operation.

Prerequisites

There are no prerequisites for installing this cumulative update.

Registry information

To use one of the cumulative updates in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this cumulative update.

Update replacement information

This cumulative update replaces the July 2018 cumulative update for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime.

Removal information

To remove this cumulative update package, use the Add or Remove Programs item in Control Panel.

Sometimes, when you try to uninstall this cumulative update, you are prompted for the source CD. If this behavior occurs, insert the source CD, or provide the path where the source files can be found.