The last few months have seen exponential growth in the usage of Microsoft Teams. This can be illustrated from the fact that on March 31 alone, the app handled nearly 2.7 billion minutes of calls.

In this week’s workplace round-up Yammer reappears and AWS pushes out a chat app for Slack. Google, Alfresco and Confluent also made big announcements. Gone, but not forgotten. And now its back. If ...