[logicallee]

this seems nice, pretty conservative.

https://tools.ietf.org/html/draft-ietf-httpbis-http2-17

"

Abstract

   This specification describes an optimized expression of the semantics
   of the Hypertext Transfer Protocol (HTTP).  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.

"

all these changes seem good without a large change, just an improved user experience. (the Introduction section is also good - "HTTP/2 addresses these issues by defining an optimized mapping of HTTP's semantics to an underlying connection", I'd quote more but why not click through the link at the top of this comment. basically just some compression of headers, none of the funky stuff to keep connections alive for server push, prioritizing important requests, etc. all without changing semantics much - great.)