https://www.theverge.com/2019/1/22/18193303/google-hangouts-end-transition-october-gsuite-chat-meet

In case you hadn’t heard, Google Hangouts is going away — and if you’ve been dreading the day you’ll have to replace it with the perhaps much nicer-looking Hangouts Chat and Hangouts Meet, we’ve got some brand-new guidance from Google on when the switch will be happening.

Namely, October to start. That’s when Google will start retiring the classic Hangouts app for its G Suite customers — aka companies that pay to use Google Apps — according to an official blog post. So that’s when you should expect to hear the first wave of people complaining about being forced to switch, even though it’ll only be those G Suite customers at first.