Despite claimed feature parity with Classic Teams, upgrading to the new Microsoft Teams might cost you some of your favorite features

[Windows Central]

The Classic version of Microsoft Teams reaches end of support in two months. Generally, the new Teams is an improvement over Classic Teams, but you will lose some functionality when upgrading.

Despite claimed feature parity with Classic Teams, upgrading to the new Microsoft Teams might cost you some of your favorite features : Read more

 

[GraniteStateColin]

DaveDansey may correct me if I'm mistaken, but I responded to him in that thread (as referenced in this article) with a few ways to organize contacts and that I don't think they've actually removed that capability, just changed how it worked a bit.

Another HUGE benefit to the New Teams for some users: it now supports multiple simultaneous tenant connections (working with multiple companies). This was a showstopper for even using Teams for many people with the old version. They just added this about a month or so ago.

 

[DuckMcScrooge]

I miss typing Ctrl+G (for goto) and then typing a little bit of a channel name to quickly navigate to that channel.
Ctrl+E is too broad in its search

The user activity page was also quite helpful in our team. It's a shame there's no way to see that information anymore.