Microsoft is unlocking the "Full Potential" of Private Channels in Microsoft Teams: What You Need to Know

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It has been a while since I posted something just about a Microsoft Teams update, as a lot have been Copilot in Teams to be honest. But here is a real Microsoft Teams update I think is worth knowing about, and it involves Security and Compliance as well. Microsoft is rolling out a "major" update to private channels in Teams, starting in late September 2025 and continuing through mid-December. This biggest change in this update is a shift in how private channel data is stored from individual user mailboxes to a dedicated channel mailbox. Not only will this simplifie compliance management, it will also and align private channels with shared channels, making governance and experience more consistent across Teams. This update promises to increase the support up to 1000 channels per team and 5000 members per channel, removing previous limitations. Teams will also allow meetings to be scheduled directly within private channels, enhancing collaboration.  For organizations using Micr...

Lync owas windows 8_1 bug

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** UPDATE **
The bug has been fixed in the following update: http://support.microsoft.com/kb/2837634
You might have to break the farm, and recreate it after the update.
**/UPDATE**

There is a known bug affecting windows 8.1 users when they try to present a PowerPoint presentation in any meeting. If you have installed any version of Windows 8.1 and tried it, you might have seen the all too familiar screen:


If you have tried to debug the error, you might be as frustrated as me, because there is (at least I was not able to find any) no visible error on any server or client component. Even a Fiddler trace revealed nothing but 200 OK messages.

This bug is not present in Lync Online, and I hope we'll see a bugfix for the onprem installations as well soon.

In the meantime, do as I did to correct the error. Join your meeting through the web browser, appending ?sl=2 to your meet url. At least I was able to run the presentation through my webapp.


Hope this helps, and that we see a bugfix soon :)