HTTP/2

This specification has been revised 2 times since RFC 7540 (2015). Each document below formally obsoleted the one before it; the versions still in force are listed first.

Revision timeline

RFC 7540 (2015)
RFC 8740 (2020)
RFC 9113 (2022) ✓

Current version — implement against this

RFC 9113HTTP/2Current
June 2022proposed standard

Superseded versions — historical reference only

RFC 7540Hypertext Transfer Protocol Version 2 (HTTP/2)Obsoleted
May 2015proposed standardreplaced by RFC9113
RFC 8740Using TLS 1.3 with HTTP/2Obsoleted
February 2020proposed standardreplaced by RFC9113

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 9113 (June 2022).