RFC 2145 (rfc2145) - Page 1 of 7
Use and Interpretation of HTTP Version Numbers
Alternative Format: Original Text Document
Network Working Group J. C. Mogul
Request for Comments: 2145 DEC
Category: Informational R. Fielding
UC Irvine
J. Gettys
DEC
H. Frystyk
MIT/LCS
May 1997
Use and Interpretation of
HTTP Version Numbers
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Distribution of this document is unlimited. Please send comments to
the HTTP working group at [email protected]>. Discussions
of the working group are archived at
. General discussions
about HTTP and the applications which use HTTP should take place on
the [email protected]> mailing list.
Abstract
HTTP request and response messages include an HTTP protocol version
number. Some confusion exists concerning the proper use and
interpretation of HTTP version numbers, and concerning
interoperability of HTTP implementations of different protocol
versions. This document is an attempt to clarify the situation. It
is not a modification of the intended meaning of the existing
HTTP/1.0 and HTTP/1.1 documents, but it does describe the intention
of the authors of those documents, and can be considered definitive
when there is any ambiguity in those documents concerning HTTP
version numbers, for all versions of HTTP.
Mogul, et. al. Informational
