But also, the only thing in most of the organizations I've been in that was using anything other than HTTP 1.1 was the internet facing loadbalancer or cloudflare, and even then not always. Oh yeah we might get a tiny boost from using HTTP/2 or whatever, but it isn't even remotely near top of mind and won't make a meaningful impact to anyone. HTTP/1.1 is fine and if your software only used that for the next 30 years, you'd probably be fine. And that was the point of the original comment, nginx is software that could be in the "done with minor maintenance" category because it really doesn't need to change to continue being very useful.