A new HTTP version is coming, and it will work differently than previous versions. Instead of using TCP, it will use a Google technology called QUIC.
In its continued efforts to make Web networking faster, Google has been working on an experimental network protocol named QUIC: “Quick UDP Internet Connections.” QUIC reinstates the reliability and ordering that TCP has but without introducing the same number of round trips and latency.
For example, if a client is reconnecting to a server, the client can send important encryption data with the very first packet, enabling the server to resurrect the old connection, using the same encryption as previously negotiated, without requiring any additional round trips.
Check It Out: New HTTP Version is Coming, Won’t Use TCP