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HTTP 0.9 | The Original HTTP as defined in 1991 at W3.org |
HTTP/1.0 | RFC 1945 (May 1996) - Hypertext Transfer Protocol -- HTTP/1.0 |
HTTP/1.1 | RFC 2068 (January 1997) - Hypertext Transfer Protocol -- HTTP/1.1 - obsolete, replaced by 2616 RFC 7230 (June 2014) - Message Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing - obsolete, replaced by 9110, 9112 RFC 9110 (June 2022) - HTTP Semantics |
HTTP/2 | HTTP/2 home page, maintained by the IETF HTTPbis Working Group RFC 7540 (May 2015) - Hypertext Transfer Protocol Version 2 (HTTP/2) - obsolete, replaced by 9113 RFC 9113 (June 2022) - HTTP/2 home page, maintained by the IETF HTTPbis Working Group |
HTTP/3 | RFC 9114 (June 2022) - HTTP/3 Not yet implemented by Apache Tomcat. (As of July 2022) |
HTTP - Related Specifications
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