The wiki in Microsoft Teams has never been very useful. I have used it a few times but only to realize that it is not sufficient. I have instead used the Teams associated OneNote as a good replacement.
Now is the time to celebrate!

On January 11th, I received the following good news from the Microsoft 365 Message Center.

But what should you use instead?
Do as I have done (and still do). Use your Teams OneNote instead! You can read more about how to use OneNote in Teams here: Add a OneNote notebook to Teams.
