Well, it's official: https://techcrunch.com/2017/03/24/the-days-of-google-talk-are-over/
https://gsuiteupdates.googleblog.com/2017/03/updates-in-g-suite-to-streamline-hangouts-and-gmail.html Per the blog post version: } Third-party XMPP clients will continue to work with Hangouts for } 1-on-1 chats. XMPP federation with third-party services providers will } no longer be supported starting June 26. That's at least better than _pretending_ it works. -Phil
