HTTP/3 based on QUIC protocol is officially released!

1. HTTP/3 is finally standardized

On June 6, 2022, IETF QUIC and HTTP working group member Robin Mark announced on Twitter that after five years, HTTP/3 was finally standardized as RFC 9114, the third major version of the HTTP Hypertext Transfer Protocol.

At the same time, HTTP/2 was also updated to the new RFC 9113.

The newly published HTTP/3 standard, along with RFC 9204 (QPACK header compression) and RFC 9218 (extensible prioritization), will open an important new chapter for the Web, writes Robin.

2. What is the QUIC protocol?

QUIC is a general-purpose, secure, multiplexed transport layer new network protocol. Its purpose is to replace TCP (currently the dominant protocol used for data transmission on the Internet). In 2012, the QUIC protocol was developed by Jim Roskind, who was at Google at the time. In 2013, QUIC was officially announced.

In 2015, QUIC was submitted to the IETF for standardization, but it was not until six years later, in May 2021, that the IETF released the first standardized version of QUIC, named RFC 9000. At the same time, the IETF also released a standardized version of HTTP/3 that uses QUIC.

QUIC incorporates many of the properties similar to TCP, as well as TLS encryption, placing them at the application layer on top of the UDP transport.

For articles about the QUIC protocol, you can read the following articles in detail, and will not repeat them here:

[1] Quickly read the QUIC protocol in the time of soaking in the urine:
http://www.52im.net/thread-2816-1-1.html
[2] Technical literacy: a new generation of UDP-based low-latency network transport layer protocol - QUIC detailed explanation:
http://www.52im.net/thread-1309-1-1.html
[3] Make the Internet faster: The technical practice sharing of the new generation of QUIC protocol in Tencent:
http://www.52im.net/thread-1407-1-1.html
[4] Qiniu Cloud Technology Sharing: Real-time live video broadcast with QUIC protocol with zero freeze! :
http://www.52im.net/thread-1406-1-1.html