HTTP/3
HTTP/3 is the third and upcoming major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web , alongside HTTP/1 . 1 and HTTP/2 . 
<triplet> HTTP/3 <subj> Hypertext Transfer Protocol <obj> part of the series <subj> HTTP/2 <obj> follows <triplet> Hypertext Transfer Protocol <subj> World Wide Web <obj> part of <subj> HTTP/2 <obj> has part <triplet> HTTP/1.1 <subj> World Wide Web <obj> part of <subj> HTTP/2 <obj> has part <triplet> HTTP/2 <subj> HTTP/3 <obj> followed by <subj> Hypertext Transfer Protocol <obj> part of the series <subj> HTTP/1.1 <obj> part of the series