THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- The Data Import Handler (DIH) is an independent project now; it is no longer a part of Solr
- No more support for clusterstate.json and MIGRATESTATE API has been removed. If your collections use clusterstate.json, please refer to the Upgrade Notes
- Auto scaling framework has been removed. Please refer to replica placement plugins for alternate options
- LegacyBM25SimilarityFactory has been removed
- VelocityResponseWriter is an independent project now; it is no longer a part of Solr. This encompasses all previously included /browse and wt=velocity examples
- Legacy SolrCache implementations (LRUCache, LFUCache, FastLRUCache) have been removed. Users have to modify their existing configurations to not mention the class in order to get the default
- Cross Data Center Replication has been removed in this release
- SolrJ clients like HttpSolrClient and LBHttpSolrClient that lacked HTTP2 support have been deprecated. The old CloudSolrClient has been renamed as CloudLegacySolrClient and deprecated
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