Since its inception, the Teams user interface emphasized teams and channels for collaboration. But that's not how people work, and the new chat and channels experience emphasizes chats a lot more. This doesn't mean that channels are going away. They remain the foundation of teams and the right way to communicate and share information for ongoing use, but the change to highlight chats might take some getting used to.| Practical 365
A change made to an Office 365 retention policy for Teams personal chats in the KPMG tenant removed data for 145,000 users. That's unfortunate, and it underlines the need for admins to understand how retention policies work.| Office 365 for IT Pros
Many Teams users love to use group chats as a way to get work done. Group chats are effective, but the information shared in chats ends up in personal OneDrive accounts. To help switch people back to channel conversations, Teams has a new threaded layout to make conversations behave much like chats. The new layout works well for some channels but not for others.| Practical 365
