Update Microsoft Teams
When an update is available in the Teams desktop app, it'll appear at the top of your Teams window.
To update, select Update 
Teams will automatically close and update. If it doesn't reopen automatically, select and open the updated Teams app on your device.
The web app is always updated. It’s just good like that.
Note: Linux users aren't able to update manually within Teams at this time.
To update the Teams mobile app, download and install it again from the iOS App Store or Google Play Store.
Note: Linux users aren't able to update manually within Teams at this time.
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