New Release: CrateDB 6.0

CrateDB 6.0 upgrades to Lucene 10.2, delivering faster query performance through optimized COUNT operations, mixed joins, and improved NUMERIC type handling. The release strengthens PostgreSQL compatibility with aligned scalar functions and metadata improvements, while introducing new monitoring tools like cluster_health and expanded segments table. Dynamic column policy now supports nested arrays for easier JSON and IoT data ingestion. The Lucene upgrade requires reindexing from older versions but establishes groundwork for future AI features including vector search and k-means clustering.