usefor-usefor-01 September 2004

3.2.5  Supersedes

   The Supersedes header contains a message identifier specifying an
   article to be superseded upon the arrival of this one.  The specified
   article MUST be treated as though a "cancel" [USEPRO] control message
   had arrived for the article (but observe that a site MAY choose not
   to honor a "cancel" message, especially if its authenticity is in
   doubt).

   supersedes      =  "Supersedes:" SP [CFWS] msg-id-core [CFWS] CRLF

   NOTE: There is no "c" in Supersedes.

--- ../usefor-article-13/Supersedes.out          May 2004
+++ ../usefor-usefor-01/Supersedes.out          September 2004
@@ -1,34 +1,13 @@
-6.15.  Supersedes
+3.2.5  Supersedes
 
-   The Supersedes-header contains a message identifier specifying an
+   The Supersedes header contains a message identifier specifying an
    article to be superseded upon the arrival of this one. The specified
-   article MUST be treated as though a "cancel" control message had
-   arrived for the article (but observe that a site MAY choose not to
-   honour a "cancel" message, especially if its authenticity is in
-   doubt). The content syntax makes use of syntax defined in [RFC 2822]
-   (but see the revised definition of msg-id in section 2.4.3).
+   article MUST be treated as though a "cancel" [USEPRO] control message
+   had arrived for the article (but observe that a site MAY choose not
+   to honor a "cancel" message, especially if its authenticity is in
+   doubt).
 
-      header              =/ Supersedes-header
-      Supersedes-header   = "Supersedes" ":" SP Supersedes-content
-      Supersedes-content  = [CFWS] msg-id [CFWS]
+   supersedes      =  "Supersedes:" SP [CFWS] msg-id-core [CFWS] CRLF
 
-        NOTE: There is no "c" in "Supersedes".
-
-        NOTE: The Supersedes-header defined here has no connection with
-        the Supersedes-header that sometimes appears in Email messages
-        converted from X.400 according to [RFC 2156]; in particular, the
-        syntax here permits only one msg-id in contrast to the multiple
-        msg-ids in that Email version.
-
-   Thus when an article contains a Supersedes-header, the old article
-   mentioned SHOULD be withdrawn from circulation or access, as in a
-   cancel message (7.3), and the new article inserted into the system as
-   any other new article would have been.
-
-   Whatever security or authentication checks are normally applied to a
-   Control cancel message (or may be prescribed for such messages by
-   some extension to this standard - see the remarks in 7.1 and 7.3)
-   MUST also be applied to an article with a Supersedes-header. In the
-   event of the failure of such checks, the article SHOULD be discarded,
-   or at most stored as an ordinary article.
+   NOTE: There is no "c" in Supersedes.