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ObsoletedPROPOSED STANDARDIETF stream

RFC 7540: Hypertext Transfer Protocol Version 2 (HTTP/2)

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 9113.

Current document in this lineage: RFC 9113 — HTTP/2

In plain English — editorial summary, not part of the RFC

This specification describes an optimized expression of the semantics of the Hypertext Transfer Protocol (HTTP), referred to as HTTP version 2 (HTTP/2). HTTP/2 enables a more efficient use of network resources and a reduced perception of latency by introducing header field compression and allowing multiple concurrent exchanges on the same connection. It also introduces unsolicited push of representations from servers to clients. This specification is an alternative to, but does not obsolete, the HTTP/1.1 message syntax. HTTP's existing semantics remain unchanged.

Document record

Document ID
RFC7540
Published
May 2015
Authors
M. Belshe; R. Peon; M. Thomson
Status
PROPOSED STANDARD
Stream
IETF
Area
wit
Pages
96
Also known as
—
Obsoleted by:
RFC 9113
Updated by:
RFC 8740

Topics

Standards lineage

This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.

  1. RFC 7540 (2015)
  2. RFC 8740 (2020)
  3. RFC 9113 (2022) ✓

Read the full history of HTTP/2 →

Referenced by

2 later RFCs formally update or obsolete part of this document.

Related documents

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/7540-hypertext-transfer-protocol-version-2-http-2