This article specifies the applicability of Microsoft Skype for Business Server 2019 updates for each server role.

Get the updates that are released for Skype for Business Server 2019

  • 5032429 Description of the security update for Skype for Business Server: October 10, 2023 (KB5032429)

  • 5029970 July 2023 cumulative update 7.0.2046.524 for Skype for Business Server 2019, Administrative Tools

  • 5029968 July 2023 cumulative update 7.0.2046.524 for Skype for Business Server 2019, Core Components

  • 5029969 July 2023 cumulative update 7.0.2046.524 for Skype for Business Server 2019, Web Components Server

  • 5025900 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Core Components

  • 5025901 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Web Components Server

  • 5028903 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Web Conferencing Server

  • 5028904 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Response Group Service

  • 5028905 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Administrative Tools

  • 5028906 June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Macp Web Components

  • 5017871 October 2022 cumulative update 7.0.2046.409 for Skype for Business Server 2019, Core Components

  • 5017876 October 2022 cumulative update 7.0.2046.409 for Skype for Business Server 2019, Macp Web Components

  • 5016714 Description of the security update for Skype for Business Server and Lync Server: July 12, 2022 (KB5016714)

  • 5012686 Description of the security update for Skype for Business Server: April 12, 2022 (KB5012686)

  • 5003729 May 2021 security update 7.0.2046.369 for Skype for Business Server 2019

  • 5000675 Description of the security update for Skype for Business Server and Lync Server: February 9, 2021 (KB5000675)

  • 5006327 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Administrative Tools

  • 5006976 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Conferencing Attendant

  • 5006328 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Conferencing Announcement

  • 5006325 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Mediation Server

  • 5006329 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Response Group Service

  • 5006321 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Core Components

  • 5006326 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019 and Unified Communications Managed API 5.0 Runtime

  • 5006322 December 2021 cumulative update 7.0.2046.385 for Skype for Business Server 2019, Web Components Server

  • 5001617 March 2021 cumulative update 7.0.2046.367 for General availability of Modern Admin Control Panel (MACP) for Skype for Business Server 2019

  • 4593479 November 2020 cumulative update 7.0.2046.248 for Skype for Business Server 2019, Core Components

  • 4593480 November 2020 cumulative update 7.0.2046.248 for Skype for Business Server 2019, Web Components Server

  • 4582623 September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019, Response Group Service

  • 4582624 September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019, Conferencing Server

  • 4582625 September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019, Front End Server and Edge Server

  • 4582626 September 2020 cumulative update 7.0.2046.244 for the Skype for Business Server 2019 Centralized Logging Service

  • 4582627 Description of the cumulative update 7.0.2046.244 for Skype for Business Server 2019, Administrative Tools: September 2020

  • 4582628 September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019 and Unified Communications Managed API 5.0 Runtime

  • 4582630 September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019, Mediation Server

  • 4564311 July 2020 cumulative update 7.0.2046.236 for Skype for Business Server 2019, Macp Web Components

  • March 2020 cumulative update 7.0.2046.216 for Skype for Business Server 2019, Modern Administration Control Panel (MACP) Phase 2

  • 4528673 December 2019 cumulative update 7.0.2046.151 for Skype for Business Server 2019, Enterprise Web App

  • 4499965 July 2019 cumulative update 7.0.2046.123 for the Skype for Business Server 2019 Backup Service

  • 4499970 July 2019 cumulative update 7.0.2046.123 for the Skype for Business Server 2019 Application Host

  • 4499978 July 2019 cumulative update 7.0.2046.123 for the Skype for Business Server 2019, Core Management Server

  • 4499980 July 2019 cumulative update 7.0.2046.123 for the Skype for Business Server 2019 Replica Replicator Agent

  • 4499972 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Conferencing Attendant

  • 4499973 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Conferencing Announcement

  • 4499975 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Call Park service

  • 4499976 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Web Conferencing Server

  • 4499979 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Bandwidth Policy Service

  • 4499983 July 2019 cumulative update 7.0.2046.123 for Skype for Business Server 2019, Video Interop Server

  • 4499971 July 2019 cumulative update 7.0.2046.123 for the Skype for Business Server 2019 Audio Test service

Installation methods

Prerequisites

To apply this update, you must have Microsoft .NET Framework 4.5.2 (Offline Installer or Web Installer) installed.

Install the update

The Server Update Installer applies all updates for the appropriate server role in one operation.Note If User Account Control (UAC) is turned on, you must start the Server Update Installer by using elevated permissions to make sure that all updates are installed correctly.

Download Download the March 2021 Server Update Installer

Note Updates for Skype for Business Server 2019 will no longer be auto-installed by Microsoft Update. You must manually download SkypeServerUpdateInstaller.exe from Microsoft Update, and then use the following installation steps.

To apply the update to the Front End servers in a pool

  1. Type the following cmdlet: Get-CsPoolFabricState -PoolFqdn <PoolFQDN> If this cmdlet reveals any missing replicas, run the following cmdlet to recover the pool before you apply any updates: Reset-CsPoolRegistrarState -ResetType QuorumLossRecovery

  2. On the first server that you want to update, run the following cmdlet: Invoke-CsComputerFailOver -ComputerName <Front End Server to be patched> This cmdlet moves all services to other Front End servers in the pool, and takes this server offline.

  3. Install the required additional Windows features.Add-WindowsFeature RSAT-ADDS, Web-Server, Web-Static-Content, Web-Default-Doc, Web-Http-Errors, Web-Asp-Net, Web-Net-Ext, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Http-Logging, Web-Log-Libraries, Web-Request-Monitor, Web-Http-Tracing, Web-Basic-Auth, Web-Windows-Auth, Web-Client-Auth, Web-Filtering, Web-Stat-Compression, Web-Dyn-Compression, NET-WCF-HTTP-Activation45, Web-Asp-Net45, Web-Mgmt-Tools, Web-Scripting-Tools, Web-Mgmt-Compat, Windows-Identity-Foundation, Server-Media-Foundation, Telnet-Client, BITS, ManagementOData, Web-Mgmt-Console, Web-Metabase, Web-Lgcy-Mgmt-Console, Web-Lgcy-Scripting, Web-WMI, Web-Scripting-Tools, Web-Mgmt-Service

  4. Run the Server Update Installer, and then select Install Updates to upgrade the server role. You can also run the following parameters together with the SkypeServerUpdateInstaller.exe command:

    • The /silentmode switch applies all applicable updates in the background.

    • The /silentmode/forcereboot switch applies all applicable updates in the background, and then automatically restarts the server at the end of the installation process, if it is necessary.

    • The /extractall switch extracts the updates from the installer, and saves the updates in a subfolder that is named "Extracted" in the folder in which you ran the command.

  5. Run BootStrapper.exe.

  6. On the upgraded server, run the following cmdlet: Invoke-CsComputerFailBack -ComputerName <Front End Server to be patched> The server is returned to service.

  7. Repeat steps 2–6 for every server that has to be upgraded.

To apply the update to a Back End server or Standard Edition server

  1. Log on to the server that you are upgrading as a member of the CsAdministrator role.

  2. Start the Skype for Business Server Management Shell: Select Start, select All Programs, select Skype for Business 2019, and then select Skype for Business Server Management Shell.

  3. Stop Skype for Business Server services. At the command prompt, type the following command: Stop-CsWindowsService

  4. Stop the World Wide Web service. At the command prompt, type the following: net stop w3svc

  5. Close all Skype for Business Server Management Shell windows.

  6. Run the Server Update Installer, and then select Install Updates to upgrade the server role. You can also run the following parameters together with the SkypeServerUpdateInstaller.exe command:

    • The /silentmode switch applies all applicable updates in the background.

    • The /silentmode /forcereboot switch applies all applicable updates in the background, and then automatically restarts the server at the end of the installation process if it is necessary.

    • The /extractall switch extracts the updates from the installer, and saves the updates in a subfolder that is named "Extracted" in the folder in which you ran the command.

  7. Start the Skype for Business Server Management Shell: Select Start, select All Programs, select Skype for Business 2019, and then select Skype for Business Server Management Shell.

  8. Start Skype for Business Server services. At the command prompt, type: Start-CsWindowsService

  9. Restart the World Wide Web service. At the command prompt, type: net start w3svc

  10. Apply the changes to the SQL Server databases by doing one of the following.Note When you run the Install-CsDatabase cmdlet, you receive an error message that you can safely ignore. The error message in the request is expected if you are updating the database on a computer that isn't hosting the Central Management Store.

    • If this is an Enterprise Edition Back End Server, and there are no collocated databases, such as Archiving or Monitoring databases, on this server, type the following at a command prompt: Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn <SQL Server FQDN>

    • If this is an Enterprise Edition Back End Server, and there are collocated databases on this server, type the following at a command prompt: Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn <SQL Server FQDN> -ExcludeCollocatedStores

    • If this is a Standard Edition server, type the following at a command prompt: Install-CsDatabase -Update -LocalDatabases

  11. If the Skype for Business Back End pool uses the SQL AlwaysOn availability group, update the AlwaysOn databases as follows:

    1. Install the update on your Skype for Business server or servers.

    2. Run the following PowerShell command in your Skype for Business Management Shell (logged in by using an account that's appropriately permissioned to apply changes to the SQL AlwaysOn databases), as follows:

      Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn [sqlpool.contoso.com] -Verbose

      Note In this command, replace [sqlpool.contoso.com] with the fully qualified domain name (FQDN) of your AlwaysOn availability group.

Uninstallation methods

Uninstall the update

Remove the update from an Enterprise Edition pool that has two front-end servers

To do this, follow these steps:

  1. Stop new connections to other front-end servers by running the following command on both front-end servers: Stop-CsWindowsService -ComputerName <Computer.FQDN>

  2. Uninstall any updates.

  3. Restart the server, and make sure that both front-end servers are accepting new connections.

  4. After both front-end servers are updated, you must run the following command: Reset-CsPoolRegistrarState -ResetType FullReset Then, run the following command: Start-CsPool -PoolFqdn <Pool.FQDN>

Remove the update from an Enterprise Edition pool that has at least three front-end servers

To do this, follow these steps:

  1. Obtain the list of the upgrade domains for the Enterprise Edition pool that is associated with a front-end server. To do this, run the Get-CsPoolUpgradeReadinessState cmdlet on the front-end server.

  2. Uninstall any updates for each upgrade domain.Notes

    • You must uninstall updates from one upgrade domain at a time.

    • You can remove updates in parallel from all servers that are in the same upgrade domain.

    To uninstall all servers that are in the same upgrade domain, follow these steps:

    1. Run the following command: Invoke-CsComputerFailover -ComputerName <Computer.FQDN>

    2. Uninstall updates on front-end servers that are associated with an upgrade domain.

    3. Run the following command: Invoke-CsComputerFailback -ComputerName <Computer.FQDN>

    Note You must repeat step 2 to uninstall updates from every upgrade domain until all upgrade domains in the pool are updated.

You must do several configuration operations, depending on the kind of Skype for Business 2019 Enterprise Edition back-end servers that you are using.Note If database mirroring is enabled for the back-end databases, we strongly recommend that you use the Invoke-CsDatabaseFailover -NewPrincipal Primary command, and then run the Get-CsDatabaseMirrorState -PoolFqdn <fqdn of pool> cmdlet to verify that the primary server is principal for all databases before you run the Install-CsDatabase cmdlet. If Persistent Chat is co-located (that is, the Persistent Chat front-end service and back-end database are running on the same server), you must run the Install-CsDatabase cmdlet together with the ExcludeCollocatedStores parameter.

Skype for Business Server 2019 Monitoring Databases

If Skype for Business Monitoring databases are deployed on standalone SQL databases, run the following command:

Install-CsDatabase -ConfiguredDatabases -SqlServerFqdn 
<FEBE.FQDN>
-Verbose 

In this command, <FEBE.FQDN> is a placeholder for the actual value.

Skype for Business Server 2019 Standard Edition and other roles

  1. Uninstall updates on the Standard Edition or any other server role.

  2. Restart the server after you uninstall these updates, if it is necessary.

Known issues in this update

  • After you uninstall this update, the standard MACP user sign-in URL (“https://<your pool FQDN>/macp”) fails. Instead, you have to use the following URL to sign in to MACP:

    • https://<your pool FQDN>/macp/

List of server roles and the updates that apply to them

Skype for Business Server 2019 - Standard Edition server

  • Update for Front End Server and Edge Server (Standard or Enterprise edition server): KB 4582625

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Web Components Server: KB 4593480

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

  • Update for Administrative Tools: KB 4582627

  • Update for Enterprise Web App: KB 4528673

  • Update for Conferencing Server: KB 4582624

  • Update for Conferencing Attendant: KB 4499972

  • Update for Conferencing Announcement: KB 4499973

  • Update for Call Park service: KB 4499975

  • Update for Web Conferencing Server: KB 4499976

  • Update for Mediation Server: KB 4582630

  • Update for Bandwidth Policy Service: KB 4499979

  • Update for Response Group Service: KB 4582623

  • Update for Video Interop Server: KB 4499983

  • Update for Audio Test service: KB 4499971

  • Update for Backup Service: KB 4499965

  • Update for Application Host: KB 4499970

  • Update for Replica Replicator Agent: KB 4499980

  • Update for Core Management Server: KB 4499978

  • Update for Centralized Logging Service: KB 4582626

Skype for Business Server 2019 - Enterprise Edition - Front End server and Back End server

  • Update for Front End server and Edge server (Standard or Enterprise edition server): KB 4582625

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Web Components Server: KB 4593480

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

  • Update for Bandwidth Policy Service: KB 4499979

  • Update for Conferencing Announcement: KB 4499973

  • Update for Response Group Service: KB 4582623

  • Update for Administrative Tools: KB 4582627

  • Update for Enterprise Web App: KB 4528673

  • Update for Conferencing Attendant: KB 4499972

  • Update for Conferencing Server: KB 4582624

  • Update for Video Interop Server: KB 4499983

  • Update for Web Conferencing Server: KB 4499976

Skype for Business Server 2019 - Edge server

  • Update for Front End server and Edge server (Standard or Enterprise edition server): KB 4582625

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

  • Update for Administrative Tools: KB 4582627

Skype for Business Server 2019 - standalone Mediation server

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

Skype for Business Server 2019 - Director server

  • Update for Front End server and Edge server (Standard or Enterprise edition server): KB 4582625

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

  • Update for Web Components server: KB 4593480

Skype for Business Server 2019 - Persistent Chat Front End server

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

Skype for Business Server 2019 - Administration Tools

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

  • Update for Unified Communications Managed API 5.0, Core Runtime 64-bit: KB 4582628

Skype for Business Server 2019 - Video Interop server

  • Update for Core Components: KB 4593479

  • Update for Macp Web Components: KB 4540586

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