Confused by .rpmnew conf files in upgrading process

user apache;
worker_processes 1;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

ht tp {
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    # Hide Nginx version number
    server_tokens off;

    gzip on;
    keepalive_timeout 65;
    sendfile on;

    client_max_body_size 12m;
    types_hash_max_size 2048;

    include /etc/nginx/conf.d/*.conf;
}

# For more information on configuration, see:
#   * Official English Documentation: nginx.org/en/docs/
#   * Official Russian Documentation: nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

events {
    worker_connections 1024;
}

ht tp {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$ht tp_referer" '
                      '"$ht tp_user_agent" "$ht tp_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }
}