Some in-product messages in Microsoft Teams can now be controlled with the New-CsTeamsUpdateManagementPolicy command. Using this control, tenant admins can limit in-product messages relating to periodic What's New and Conferences updates.
When this will happen:
General Availability (Worldwide, GCC): This update is available now.
How this will affect your organization:
Setting policies to disable in-product messages will stop users from seeing What's New and Conferences awareness messages within Teams.
For more information, visit the -DisabledInProductMessages Microsoft Learn page for the PowerShell policy overview regarding disabling these in-product notification types for Teams users.
What you need to do to prepare:
This rollout will happen automatically with no admin action required. You may want to notify your users about this change and update any relevant documentation as appropriate.