I could be wrong here, but I have reached the conclusion that the reason our topical searches are yielding less than satisfactory results is not that L4 has recanted topic searches or reinvented the concept so much so that it no longer corresponds to what L3 users mean by topic searches. I am starting to think that the primary reason is simply that the functionality has not been implemented in this L4 release yet.
The reason I think that is the following: individual resouces are still searchable by topic in the resource own search field. The information pane shows that there clearly are in L4 resources cataloged "Indexes". However doing a Index: or Indexes: search from outside a resource does not work. Seems to me then that the functionality is there, but not implemented.
Does anyone have KNOWLEDGE about this?