Due to prioritization of other work-items this has been moved to the backlog. We will update when it is being actively worked on again.
Thanks.Dean P commented
We would really like an update on this - almost a whole year radio silence. We have some large channels and important messages get lost quickly. Owners must have the ability to pin selected messages to the top of the channel for visibility.
Thanks for following our suggestion to vote this up on SharePoint. It worked! SharePoint has confirmed that they have already started working on this and I’ll be getting an ETA from them after the holidays. -Suphatra
Performance has been and continues to be a big focus area for Teams. One main area we have made improvements in is responsiveness for the most frequent user actions of switching between Chat, Channel, and Activity. We are also focused on reducing resource consumption and application load time. More improvements are on the way.
We are still considering this feature for future releases, and will continue to update the status when it changes.
As we announced at Microsoft Ignite 2019 this morning, we are excited to confirm that Multi-window capabilities are coming to Microsoft Teams, and will start rolling out to the public ring early next year!
Alex & the Teams team