[secondcoming]

1) potential gamechanger. Thanks for pointing it out

2) yes, but there's a config directive for the Server header too that could just allow people to turn it off

3) for child_init, but nothing obvious that maps to a worker_thread_init

Are there plans for httpd to avail of io_uring if the kernel provides it?

I will admit, I've struggled with configuring httpd for years. A single threaded redis server can handle more connections than a full httpd install.