New Teams 2.0 client will be mandatory later – but some "chaos"

Teams[German]Will the forced switch to the new Microsoft Teams 2.0 client in companies not be mandatory on 1 April 2024 after all? While this date is still valid, Redmond is now giving corporate customers a three-month grace period. The background to this is probably that some customers are having problems with the changeover. Here is an overview about some "Teams 2.0" shenanigans.


New Teams 2.0 client soon to be mandatory?

Microsoft Teams is a rewarding topic for bloggers. After a beta phase that started in spring 2023, Microsoft has generally released its Teams 2.0 client for macOS and Windows since autumn 2023. Since then, there have been an increasing number of reports from users about problems and shortcomings (see links at the end of the article).

Teams 2.0

However, Microsoft has been spreading the message for some time now that the new Teams 2.0 client will be mandatory in companies from 1 April 2024 and the switch will be forced. Administrators in corporate environments would then no longer be able to control whether users should still use the old Teams client or the new version 2.0. Microsoft had probably published a corresponding entry in the Microsoft 365 Admin Centre. I reported on this in the article New Microsoft Teams 2.0 client mandatory from April 1, 2024.

And then there was the notice from Microsoft that according to the Modern Lifecycle Policy, the Microsoft Teams 2.0 client is no longer supported in versions older than 3 months. I addressed this in the article Microsoft Teams: Clients older than 3 months will no longer work from April 2024.

A little more time to switch …

1 April 2024 would then be a big month, Microsoft would be rid of the old Teams 1.0 client and the administrators would only have new Teams 2.0 clients to manage. But this changeover is unlikely to be really smooth. Here in the blog, I have discussed some of the "aches and pains" that plague users of the new Microsoft Teams 2.0 client (see links at the end of the article).


At the beginning of January 2024, I reported in the blog post Microsoft says, Teams 2.0 migration is to slow; 2/3 still on old client reported that around 2/3 of Teams users had so far refused to switch to the new client. At the time, Microsoft called on companies to force the switch to the new Teams 2.0 client.

In the meantime, the pressure from large companies on Microsoft regarding the inadequacies of the new Teams 2.0 client seems to have become immense. It smells of "planned, unplanned" chaos during the changeover to the new Microsoft Teams 2.0 client. Martin Geuß has now reported on German site Dr Windows that Microsoft wants to give companies a little more time to make the switch. Martin is referring to an announcement in the Microsoft 365 admin centre – which I can't see because I don't have an account. According to Martin, Microsoft is citing feedback from customers who are reporting problems with the new Teams 2.0 client because the minimum requirements have not been met or there are problems with the installation.

If I am interpreting Martin's text correctly, nothing will change for environments where the administrator has not specified anything. The users are then automatically switched to the new Microsoft Teams 2.0 client. However, administrators in companies can control whether users receive the new Teams client (see this article). In this scenario, companies now have at least until 1 July 2024 to make the switch. Microsoft intends to block access to the old Microsoft Teams 1.0 client from this date at the earliest. Microsoft intends to announce a date for this "shortly". Addendum: It has been added on Feb. 24, 2024 on this support document as a not.

Bug: Teams with English text fixed?

And I'll throw one more point into the "MS Teams chaos". German reader Mark W. contacted me by email in mid-February 2024 and wrote:

I am taking up a topic here that is currently bothering me and is very annoying and many other admins also have a problem…

  • The current German Classic Teams 32bit seems to have a bug regarding Outlook 2019 and Teams appointments and language…. since the update from 1.6 to 1.7 on our terminal server OS 2022 the invitations now appear in English.
  • All attempts and tests to set to German / Gui etc… have no effect.

Do you have any information here or are you aware of anything in the community?

Mark is not an isolated case, because the error has also been mentioned in the comments here. One user has published Microsoft's statement in this comment, which I have extracted:

Some users' Microsoft Teams meeting invites are unexpectedly in English.
ID: TM716321
Issue type: Advisory

Service Degradation

Impacted services
Microsoft Teams

Title: Some users' Microsoft Teams meeting invites are unexpectedly in English.

User impact: Users' Microsoft Teams meeting invites are unexpectedly in English.

Current status: We're continuing to analyze the Microsoft Teams client logs and are attempting to reproduce the issue in our internal testing environment to enable additional logging that will help with understanding the root cause of this issue.

Scope of impact: Some users whose default language settings are set to anything besides English may be impacted.

Next update by: Saturday, February 17, 2024, at 3:00 AM UTC

–> Issue still exist? = Deleted Teams Cache again and again, resolve this issue.

Question to the readers: Has this bug been fixed by Microsoft in the meantime? It affects old Teams clients, but also seems to affect Teams 2.0.

Teams 2.0 and VDI / Citrix

Blog reader Mark W. picked up on something else in his email from mid-February 2024. He wrote to me that the "new New Teams under VDI / Citrix is a tragedy of the finest kind…. It simply doesn't work. There are many articles that confirm this…". The new Teams 2.0 client probably throws the following error message.

Fehlermeldung neuer MS Teams 2.0-Client

Microsoft has released hotfix 3 for Fslogix (see Announcing general availability of FSLogix 2210 hotfix 3!). Even this hotfix 3 does not change the interaction between New Teams 2.0 client and Fslogix, as the comment linked by Mark here from 30 January 2024 indicates. Do any of you know anything more about this problem in terms of a solution?

Similar articles:
New Microsoft Teams 2.0 Client released for macOS and Windows
Microsoft Teams 2.0: Standard backgrounds not usable?
New Microsoft Teams 2.0 client mandatory from April 1, 2024
Microsoft Teams: Clients older than 3 months will no longer work from April 2024
Microsoft Teams 2.0 issues: Outlook add-in missing during installation; crash after installation and more
Microsoft Teams 2: User status is sporadically displayed incorrectly
Microsoft says, Teams 2.0 migration is to slow; 2/3 still on old client
Microsoft Teams 2.0: Fix for missing Outlook add-in
New Teams 2.0 client doesn't ask for password for re-login

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