We're two major versions behind the current Solr release and it needs to be upgraded.
- Maintained version of Solr with lots of improvements over 4.10
- Fixes scoring sorting with location search (solving for instance
- New features we can gradually take advantage of
- Official docker image exists for Solr 5 and up so we can start to use for behat tests
Not part of this story:
- Solr Cloud support, this will be added later in Solr Bundle 2.x