Stefan Tilkov talks to Mark Nottingham, chair of the IETF (Internet Engineering Task Force) HTTP Working Group and Internet standards veteran, about HTTP/2, the new version of the Web's core protocol. The discussion provides a glimpse behind the process of building standards. Topics covered include the history of HTTP versions, differences among those versions, and the relation of HTTP/2 to Google's SPDY open networking protocol. Mark goes into detail about HTTP/2's technical features, including binary framing, improved connection handling, server push, and the different protocol negotiation approaches. The episode concludes with a look at the consequences of HTTP/2 availability and adoption, especially regarding the various hacks that are best practices with HTTP/1.1.