How can I send Calendar alerts to iPhone after ATT changes?

ATT posted this notice: “On June 17, 2025, our email-to-text and text-to-email service is going away. This means you won’t be able to use email to send or receive texts. Also, others who have AT&T WirelessSM won’t be able to use email to send you a text or use text to send you an email.”

I send calendar alerts to my iphone and it uses my ATT.net address. How will I be able to do this in the future without email to text capabilities? Has anyone heard what Apple's response is to this change? I'm glad I will no longer receive all those gmail emails to my iphone, but I still need the interface between my Mac and my iphone.

[Re-Titled by Moderator]