They have required that iOS apps must work in an IPv6-only environment for years...

p1mrx · 2024-01-23T06:52:44 1705992764

That was an interesting decision.

At roughly the same time, Android added 'clatd' so existing apps would just work in an IPv6-only environment via NAT64.

Apple refused to implement clatd, instead forcing app developers to fix their own code. More work upfront, but now iOS apps should have an easier time transitioning their server-side components to IPv6, compared to Android apps.