FYI: Link -04

See:
   http://www.ietf.org/internet-drafts/draft-nottingham-http-link-header-04.txt

Diffs at:
   http://tinyurl.com/clewkp

Changelog:
    o  Defined context as a resource, rather than a representation.
    o  Removed concept of link directionality; relegated to a deprecated
       Link header extension.
    o  Relation types split into registered (non-URI) and extension
       (URI).
    o  Changed wording around finding URIs for registered relation  
types.
    o  Changed target and context URIs to IRIs (but not extension
       relation types).
    o  Add RFC2231 encoding for title parameter, explicit BNF for  
title*.
    o  Add i18n considerations.
    o  Specify how to compare relation types.
    o  Changed registration procedure to Designated Expert.
    o  Softened language around presence of relations in the registry.
    o  Added describedby relation.
    o  Re-added 'anchor' parameter, along with security consideration  
for
       third-party anchors.
    o  Softened language around HTML4 attributes that aren't directly
       accommodated.
    o  Various tweaks to abstract, introduction and examples.


--
Mark Nottingham     http://www.mnot.net/