HTTP/3 and QUIC Overview

HTTP/3 is the third major version of the Hypertext Transfer Protocol using QUIC.

• Transport: QUIC (UDP-based) replaces TCP to reduce head-of-line blocking.
• Standardization: RFC 9114 (HTTP/3) and RFCs 9000–9002 (QUIC) published in 2022.
• Benefits: Faster connection setup (0-RTT/1-RTT), multiplexing without TCP HoL blocking, improved congestion control and connection migration.
• Adoption: Supported by major browsers and CDNs; widely deployed on the public web.

Note: This entry is part of a seeded demo to exercise version history.