We added support for the new HTTP/2 protocol to the howtoforge servers now. This will improve the speed of the website in all HTTP/2 compatible Browsers, e.g. Firefox and Google Chrome. Do you like to know more about HTTP/2? Please take a look at the Wikipedia page.
I have a server nginx ISPconfig on Debian. whether to upgrade the mainline version nginx 1.9.6 to support http2 or wait until a stable version