The XML Core WG of W3C recently announced an erratum for "Associating
Style Sheets with XML documents Version 1.0".
http://www.w3.org/1999/06/REC-xml-stylesheet-19990629/errata
-----------------------------------------------
Description: The pseudo-attribute "type" declared with type
CDATA #REQUIRED is mandatory.
Correction: The declaration is changed to: type CDATA #IMPLIED
so that it is optional.
Rationale: This pseudo-attribute is adopted from HTML 4.0, where
it is optional.
-------------------------------------------------------------------
Suppose that a stylesheet-linking PI uses a fragment identifier
(e.g., XPointer) so as to reference to an embedded stylesheet. We
are no longer forced to specify some media type.
Cheers,
----
MURATA Makoto muraw3c(_at_)attglobal(_dot_)net