HTTP 1.0 vs. 1.1 -- what's new

Balachander Krishnamurthy (bala@research.att.com)
Mon, 19 Oct 1998 20:05:31 -0400 

hi,

dave kristol, jeff mogul amd i are working on a document that catalogs the
changes between 1.0 and 1.1. am appending a list of changes -- please send
me mail if i have missed anything. note that the taxonomy is somewhat 
arbitrary and some things may fit in more than one place. 

cheers,
bala

balachander krishnamurthy
at&t labs--research

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section numbers in parens below refer to rev05 of http 1.1 found in
  http://www.w3.org/Protocols/HTTP/1.1/draft-ietf-http-v11-spec-rev-05.txt

status codes:
	1xx   reserved in .0 but never used
		100 Continue  
		101 Switching Protocols
	2xx   
		203 Non-Authoritative Information      
		205 Reset Content     
		206 Partial Content   
	3xx
		300 Multiple Choices  
		302 Found     (was Moved Temporarily, meaning changed slightly)
		303 See Other 
		305 Use Proxy 
		307 Temporary Redirect
	4xx
		402 Payment Required   
		405 Method Not Allowed
		406 Not Acceptable    
		407 Proxy Authentication Required     
		408 Request Timeout  
		409 Conflict  
		410 Gone     
		411 Length Required  
		412 Precondition Failed
		413 Request Entity Too Large 
		414 Request-URI Too Long      
		415 Unsupported Media Type   
		416 Requested range not satisfiable  
		417 Expectation Failed 
	5xx
		504 Gateway Timeout    
		505 HTTP Version Not Supported 

caching:
	ETag			(14.19)
	Strong entity tags   	(3.11)
	Weak entity tags     	(3.11)	
	Age 			(14.6)
	Cache-control:		(14.9)
	   request directives:  no-cache, no-store, max-age, max-stale, 
		min-fresh, no-transform, only-if-cached
	   response directives: public, private, no-cache, no-transform,
		no-store, must-revalidate, proxy-revalidate, max-age, s-maxage
	If-Match    		(14.24)
	If-None-Match    	(14.26)
	If-Range		(14.27)
	If-Unmodified-Since	(14.28)
	Vary			(14.44)

bandwidth:
	Expect 			(14.20)
	Accept-Ranges 		(14.5)
	Content-Range 		(14.16)
	Range			(14.35)

network/connection/protocol:  
	CONNECT 		(9.9)
	Connection 		(14.10)
	Max-Forwards   		(14.31)
	Upgrade			(14.42)
	Via			(14.45)

authentication:
	Proxy-Authenticate    	(14.33)
	Proxy-Authorization   	(14.34)

transmission: 
	Chunked encoding
	Content-MD5 		(14.15)
	TE			(14.39)
	Trailer			(14.40)
	Transfer-Encoding	(14.41)

addressing: 
	Host 			(14.23)
	Content-Location 	(14.14)

error recovery/warning: 
	Warning			(14.46)