What is the new Microsoft Teams? 
Microsoft Teams (classic) is being retired and upgraded to the new Microsoft Teams.
The new Teams is faster, simpler and more flexible.
In the new Teams, you can:
- switch between accounts
- respond to chat messages, join meetings and calls more quickly (while using less battery and memory)
- launch and navigate in fewer clicks, with the same layout you’re used to.
You can read more about some of the new Teams features here: https://bit.ly/newteamsfeatures
To start using the new Teams
From mid-November 2023, you will be able to switch to the new Teams.
- Select the Try the new Teams toggle in the upper-left corner of the classic Teams app.
- Select ‘Get it now‘ from the pop-out dialogue. The new Teams will start installing.
- Your Teams app will reboot to open the new Teams. Any subsequent actions you take will happen in the new Teams by default, like joining a Teams meeting from Outlook.
Switching back to classic Teams
If you would like to switch back to classic Teams, it’s easy to toggle back and forth.
For a limited time, you will be able to switch back to the classic Teams by turning off the New Teams toggle at the top of Teams.
Add another Teams account
With Multi-Tenant Multi-Account (MTMA) support in the new Teams, you can sign into multiple work or school accounts (or as a Guest in other organizations) without signing in on multiple web browsers.
When you add accounts to your Teams desktop app, you can:
- Receive real-time notifications from all the accounts (and all associated organizations)
- Participate in chats, meetings, and calls across multiple accounts and organizations without dropping from a call or meeting to switch accounts/orgs
- Set your status for each account and organization individually. To add another account, select your profile picture at the top right of the new Teams, then select Add another account.
To add another account, select your profile 
picture at the top right of the new Teams, then select Add another account.
You can keep up to date with what’s new in the new Teams app by clicking on the following link: newteamsupdatesblog
Help and Feedback
In the new Teams, you can access authoritative help and support articles, videos, and the latest on what’s new from Microsoft by selecting Settings and more next to your profile picture at the top of the new Teams, then select Help > Get help, Help > Video training, or Help > What’s new.
If you encounter a bug or have feedback when using the new Teams that you would like to provide to Microsoft, select Help > Give feedback and follow the prompts.