HTTP2 is based on Google’s SPDY and will change the way you minify and bundle assets
​HTTP2 will mean a change in how we should build websites. The best practices of HTTP1 are harmful in a HTTP2 world.
Remember the (hacky) practices below? Well with HTTP2 they are obsolete and even detrimental to performance.
– Image sprites
– Concatenating JS and CSS
– Serving assets from a cookie-less domain.
– Creating different domains or sub-domains to host assets like images.
Read more from the source: mattwilcox.net