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A comment on Slack is down. Parent comment

Re:Slack is down by josephg on Monday January 04, 2021 @09:10PM (#25641196)
Maybe things have changed - certainly when I looked at it a few years ago (around the time that google stopped supporting it) my understanding was that xmpp had no push notification support. The app in the phone had to either poll or explicitly hold open a TCP connection. (Which is problematic when the app is backgrounded.)

Has this been fixed in XMPP?

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Re:Slack is down by MattJ100 on Tuesday January 05, 2021 @03:11AM (#25643318)
Yes, XMPP has had push notification support for years. It's the only way can work on mobile these days.
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