SfB 2019 Server update – July 2025

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This July 1 2025 update to Skype for Business is somewhat momentous. In what looks to be ‘a giant leap for SfB-kind’, it takes a server running March 2025’s 7.0.2046.548 all the way to 7.0.2046.810.

This is no ordinary Cumulative Update!

To install this CU you need to “move” your servers using Topology Builder to the new “Skype for Business Subscription Edition”. You would have followed this process previously if you’ve performed an in-place upgrade from, say, SfB2015 -> 2019.

Skype for Business Server Subscription Edition (SE)

Skype for Business Server Subscription Edition (SE) was released for general availability on July 1, 2025. The Skype for Business Server SE RTM build can be installed as a cumulative update (CU) to Skype for Business Server 2019, and it can be joined to your organizations. The version number of this update is 7.0.2046.810.

Skype for Business Server SE introduces changes to how SFB SE is serviced and licensed. This means there is no fixed end date for support, provided that configurations remain current. The product will be serviced continuously as an evergreen release, with no additional major, year-based versions planned for the future release.

For more information about the upgrade process, see Upgrading your organization from current versions to Skype for Business Server SE.

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SfB 2019 Server Update – March 2025

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Our 7.0.2046.548 March 2025 update so close on the heels of Christmas’s 7.0.2046.545 looks to be a “whoops” fixup.

What’s Fixed?

I can only find ONE named fix (albeit across two files):

  • 5055036 Can’t join Web App meeting if Web App link includes ‘?sl=1’

What’s New?

Nothing noted. There are no new cmdlets in the SfB PowerShell module.

What’s Changed?

Nothing noted.

Known Issues

Nothing noted.

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Win 11: Edge and Chrome stop responding

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It seems a lot of Windows users encounter problems with Edge and/or Chrome not responding for 10+ seconds at a time. The mouse moves, you can engage with other apps, just not the browser. When it resumes responding, some of your previous mouse clicks (e.g. failed attempts to switch tabs) are belatedly actioned.

The search results all take you to “useful” posts that suggest you try a repair, upgrade to the latest version, and if that doesn’t work, a reinstall. Dig further and others suggest you trash your cache, history, and all the other stuff you’ve carefully curated.

The fix is to disable graphics acceleration: an option common to both browsers, presumably because they’re running the same underlying Chromium engine.

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Win 11: calibrating dual touch monitors

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I rebuilt my machine this week, and hasn’t that been fun!

One issue that took me an eternity to resolve was getting the touch recognition to work on both monitors. Out of the box, touching EITHER monitor resulted in the first one responding.

My search hits all took me to options that no longer exist in Windows 11.

The fix came from Stack Exchange. Thank you Pierre Courtois Delecour!

Just run this in a PowerShell window, and it will prompt you to touch each monitor in turn, associating the touch with each screen:

cmd /C multidigimon -touch

 
– Greig.

SfB 2019 Server Update – December 2024

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I will admit I missed this year’s Christmas present from Microsoft to those die-hards still running an on-premises installation of Skype for Business 2019, but here it is. This update (7.0.2046.545) is the only one we’ve seen in more than twelve months, replacing October 2023’s Security Update to 7.0.2046.530.

What’s Fixed?

I can only find five named fixes:

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SfB 2019 Server Security Update – October 2023

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This Security update for SfBS 2019 is build 7.0.2046.530, up from July’s 7.0.2046.524. It updated two components on my Standard Edition Front-End.

What’s Fixed?

KB5032429 Description of the security update for Skype for Business Server: October 10, 2023

This security update resolves vulnerabilities in Microsoft Skype for Business Server. To learn more about these vulnerabilities, see the following security advisories:

What’s New?

Nothing noted. No cmdlets have been added to the SfB module in this update.

What’s Changed?

Nothing noted.

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SfB 2015 Server Security Update – October 2023

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This security update for SfBS 2015 is build 6.0.9319.869, up from August’s 6.0.9319.853. It updated two components on my Standard Edition Front-End.

What’s Fixed?

KB5032429 Description of the security update for Skype for Business Server: October 10, 2023

This security update resolves vulnerabilities in Microsoft Skype for Business Server. To learn more about these vulnerabilities, see the following security advisories:

What’s New?

Nothing noted. No cmdlets have been added to the SfB module in this update.

What’s Changed?

Nothing noted.

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SfB 2015 Server Update August 2023

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In June we saw an update for SfBS 2019 that added the new “Emergency Mitigation Service”, and now it’s 2015’s turn. This is build 6.0.9319.853, up from last December’s 6.0.9319.842. As expected, it’s only updating two components on my Standard Edition Front-End and delivers only one fix.

What’s Fixed?

  • 5030764 Emergency Mitigation Service for Skype for Business Server

What’s New?

This article announces the arrival of the Emergency Mitigation Service, with some companion commandlets.

Microsoft takes security very seriously and we continue to work hard to protect your systems and data from cyber threats and to comply with evolving regulations. In line with this, we have introduced the Skype for Business Server Emergency Mitigation Service to help protect your servers from potential threats. This service provides a temporary and interim mitigation until you can install an update that fixes the vulnerability.

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