SSE+5005
Steven Lees: We will remove the “unpublished” element from the spec, i.e. we will remove sections 1.2.9, 2.6 and all of section 4. We decided that the concept of unpublished belongs at the application level, rather than the base SSE specification. We will include information in the SSE implementer’s guide that describes how applications can implement “unpublished” behavior on top of SSE.
It seems to me that SSE + RFC 5005 complement each other. RFC 5005 can help you identify which entries have changed, and SSE can help you identify what changes were made to those entries.