Has the use of Apache Solr changed?

We've been noticing that our search results haven't been as good as they usually are lately and I just notice on the layout of the search results page all the old Apache Solr widgets now say "Untitled." Has there been some change to how the search functionality works now and how we might work with faceted results?

If so, can you offer some kind of description about what was done because I'm not finding it in the documentation either.

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