The September 2019 cumulative update for Lync Server 2013 contains the following security fix:Ĥ515509 Fix for Lync Server 2013 information disclosure vulnerability KB 5000688 Description of the security update for Skype for Business Server and Lync Server: Febru(KB5000688) KB 5000675 Description of the security update for Skype for Business Server and Lync Server: Febru(KB5000675) The February 2021 cumulative update for Lync Server 2013 contains the following security fixes: Note The update for Windows Fabric is applicable to Lync Server 2013 Standard Edition and Lync Server 2013 Enterprise Edition servers (Front End servers and Edge servers). KB 2967486 August 2014 cumulative update. 920 for Lync Server 2013, UCMA 3.0 Workflow APIs 920 for Lync Server 2013, Administrative Tools 920 for the Lync Server 2013 Audio Test service 920 for the Lync Server 2013, Call Park service 920 for Lync Server 2013 Bandwidth Policy service 920 for Lync Server 2013 Core Management Server 920 for Lync Server 2013 Application Host 956 for Lync Server 2013, Shared Line Appearance 965 for Lync Server 2013 Unified Communications Managed API 5.0 Runtime KB 3175339 August 2016 cumulative update. 965 for Lync Server 2013 Conferencing Attendant KB 3175335 August 2016 cumulative update. KB 3212869 FIX: Searching for a user on Lync Mobile returns no results after the November 2016 Cumulative Update for Lync Server 2013 is installed 984 for Lync Server 2013, Conferencing Announcement KB 3213741 January 2017 cumulative update. 992 for Lync Server 2013, Persistent Chat 992 for the Lync Server 2013, Mediation Server 1001 for a Lync Server 2013 Web Conferencing server 1001 for the Lync Server 2013, Response Group service 1001 for Lync Server 2013, Conferencing Server 1068 for Lync Server 2013, Front End Server and Edge Server KB 4458772 January 2019 cumulative update. 1091 for Lync Server 2013, Unified Communications Managed API 4.0 Runtime 1134 for Lync Server 2013, Web Components Server 1144 for Lync Server 2013, Web Components Server 1144 for Lync Server 2013, Core Components 1149 for Lync Server 2013, Core Components KB 5006895 September 2021 cumulative update. KB 5010850 February 2022 cumulative update for Lync Server 2013 Core Components Updates that are released for Lync Server 2013 Move-CsUser is updated to enable moving users to Microsoft Teams after retirement of Skype for Business Online (KB5011927) Install Teams PowerShell Module after you install the February 2022 CU for Lync Server 2013 (KB5011923) Improvements and fixes in the February 2022 update The latest update for Lync Server 2013 was released in February 2021. This article lists the available updates for Microsoft Lync Server 2013, and specifies the applicability of the updates for each server role.

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