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What HTTP/3 changes vs HTTP/2 and why it uses QUIC. Updated with key dates and specifics.
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# 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.
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