News for hackers. Stuff that matters.
Re:Google changes its messaging strategy again: Goodbye to A... by rakoo on Monday April 23, 2018 @04:17AM (#16901483)
It's not XMPP that's deprecated, it's the whole CCS (first link) that's being replaced with Firebase (second link). The XMPP api is still present in the replacement.
Re:Google changes its messaging strategy again: Goodbye to A... by jayd16 on Monday April 23, 2018 @06:07PM (#16907892)
While not fully consistent the XMPP api is referred to as legacy on much of FCM documentation. https://firebase.google.com/docs/cloud-messaging/server

You also misunderstand what this api is referring to. These are APIs for your server to connect to Google's. This is not a direct http and xmpp connection to mobile devices. That's all abstracted away from this.