On Tue, Jan 10, 2006 at 05:32:08PM +0100, A. Pagaltzis <[EMAIL PROTECTED]> wrote a message of 37 lines which said:
> I don???t think it???s controversy, so much as that most people > apparently simply don???t care whether an entry they???ve already > seen has changed. It is also may be because feed writers are too eager to set <updated> when the change is insignificant (for instance, when there is simply a reformatting). In Atom, the specification is, IMHO, very clear: RFC 4287, 4.2.15. The "atom:updated" Element The "atom:updated" element is a Date construct indicating the most recent instant in time when an entry or feed was modified in a way the publisher considers significant. Therefore, not all ^^^^^^^^^^^^^^^^^^^^^ modifications necessarily result in a changed atom:updated value. But it is much more muddy in the RSS world which may explain why feed reader programmers tend to ignore <updated>. Developing best practices in this area is complicated because there is a strong interaction between the feed writers and the reader software. PS: Wikipedia allow authors to check a box "Minor update" when they modify a page and they don't want it to be regarded as a significant change. I wonder how many authors set it. It would be a nice Usability study to examine that.