Microsoft Teams: Major Update –  Classic Microsoft Teams end of availability starts July 1, 2025 – Action Required

Hi All,

Greetings.

Today, I am sharing MAJOR UPDATE related to Microsoft Teams.

MAJOR UPDATE: Classic Microsoft Teams end of availability starts July 1, 2025. Users must upgrade to the new Teams or use Teams on the web to avoid disruptions.

Details

• Classic Microsoft Teams will be unavailable on Mac and Windows desktops starting July 1, 2025.
• Starting July 1, 2025, classic Teams users will be blocked from using classic Teams.
• Users will not be capable of dismiss the blocking message or use the classic Teams desktop app.
• Users must upgrade to the new Teams or use Teams on the web https://teams.microsoft.com to avoid disruptions.
• Upgrade users as soon as possible to the new Teams app.

How to check if new Teams installed or not

(Get-appxpackage -name MSTeams).PackageFamilyName -eq "MSTeams_8wekyb3d8bbwe"

• If above CMDLET returns “True” means new team is installed.

• I executed the above CMDLET on my laptop and it returned “True“. I have new teams updated on my laptop.

How to check if OS is compatible for installing new Teams

#min OS version required
$minOsVersion = [version]"10.0.19041"


$currentWinVer = Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\'

if($currentWinVer.ProductName.Contains("LTSC") -or $currentWinVer.ProductName.Contains("LTSB"))
{
    Write-Error "Microsoft Teams is not supported on Windows LTSC/LTSB. Please update to a non 
     LTSC/LTSB version of Windows with a version $minOsVersion or later"
}


$currentOSVesrion = (Get-WmiObject -Class Win32_OperatingSystem).Version

if($currentOSVesrion -lt $minOsVersion)
    {
        Write-Error "Your version of Windows is not supported by New Teams. Please update to 
                     $minOsVersion or later"
    }
    else {
        Write-Output "No issues with the OS version."
    }

REFERENCES

• Microsoft Teams Upgrade Alert: Deadline for Classic Teams End of Support and Availability – https://knowledge-junction.in/2024/06/22/msteams-upgrade-alert-deadline-for-classic-teams-end-of-support/
• End of availability for classic Teams client – https://learn.microsoft.com/en-us/microsoftteams/teams-classic-client-end-of-availability
• Bulk deploy the new Microsoft Teams client – https://learn.microsoft.com/en-us/microsoftteams/new-teams-bulk-install-client#prerequisites-for-target-computers
• Upgrade to the new Teams using policies – https://learn.microsoft.com/en-us/microsoftteams/new-teams-deploy-using-policies?tabs=teams-admin-center#prerequisites
• New Teams client pre-installation script – https://learn.microsoft.com/en-us/MicrosoftTeams/new-teams-preinstallation-script

Thanks for reading the article !!! Please feel free to discuss in case any issues / suggestions / thoughts / questions !!!

HAVE A GREAT TIME AHEAD !!! LIFE IS BEAUTIFUL 🙂