RCS messaging is coming to iOS 18, but so far we know next to nothing about what Apple has planned — despite WWDC 2024 being the perfect opportunity to detail its plans. The iOS 18 developer beta doesn’t have active RCS messaging, but there apparently is some of the relevant code hiding under the surface of the Messages app.
In fact, one person going by the name Dhinak G on X, claims to have been able to get that code running — activating some RCS messaging functionality on an iPhone. This was obviously never meant to be used, and isn't a finished product, but it does give us an idea of how the RCS/iMessage system will operate.
