AR300M only using v1 of DNS over TLS

When I enable DNS over TLS from Cloudflare on an AR300M running firmware 4.3.17, I get the message that it is only using v1 of the DNS over TLS or so.

What is that about? What are the implications? Is it a hardware limitation? I don't get this message on other routers running 4.3.17.


The mini router don't have enough power so it uses v1.

Ah, I see. I imagine Creta is the same then, as it has the same processor? And Mango as well, because it is slower still?