New Teams Calendar

Dear @Andrew Papadakos,

Thank you for posting your question in the Microsoft Q&A forum.

Month View in Microsoft Teams. This feature is part of the New Calendar experience and began rolling out to Targeted Release in mid‑November 2024 and reached General Availability worldwide in mid‑January 2025. Any Teams version released after January 2025 should include this functionality. For reference: The new calendar in Microsoft Teams now generally available

Since your current version is 25255.703.3978.7153, it appears to be a recent build. To start using the new calendar in Teams, follow these simple steps:

• Open Teams: Launch Microsoft Teams on your desktop.
• Navigate to Calendar: Select the Calendar icon in the left-hand menu.
• Enable New Calendar: In the top right corner, or in the More options (...) menu, turn on the New Calendar toggle. You can always switch back to the classic calendar by turning the toggle off.
• For reference: Get started with the new calendar in Microsoft Teams

If the New Calendar experience is missing, it may be due to organizational settings or the New Calendar toggle being disabled. We recommend contacting your IT department to confirm that the New Calendar experience is enabled in Teams update policies and feature management settings.

• Sign in to the Microsoft 365 Admin Center or Teams Admin Center.
• Search: Teams Update Policies.
• Look for the policy assigned to your user account.
• Confirm that the policy allows Classic Teams or New Teams.

If the issue still persists, to help narrow down the issue, could you please confirm these questions:

• Do you see the “New Calendar” toggle in Teams?
• Has your IT team confirmed that Teams update policies allow new features?
• Are you using the desktop app or the web version of Teams?
• Have you tried clearing Teams cache or restarting after updates? please refer to: Clear the Teams client cache

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.

Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

Thank you for your patience and your understanding. If you have any questions, please feel free to reach out.

I'm looking forward for your reply.

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@Andrew Papadakos , you probably should have lead with the info that you are in government. :)
Microsoft's GCC, GCC_High & DoD environments are on a different timeline than Commercial Cloud.

In the Message Center (which your IT dept should have access to), in announcement MC1189658, which was published last week (specifically on Nov 25th) it was just announced that new calendar experience would be coming to government clouds this month:

It's possible your organization has additional policies in place, but my point is that in sovereign clouds (as yours likely is if you are in a federal agency affected by the shutdown) this feature wasn't even available when you first posed this question.