Elastic 9.5: Columnar, VectorDB index mode & auto-calibration, and AI-driven alert triage

Elastic 9.5 introduces significant advancements to the Elasticsearch Platform, featuring a new Columnar Mode for optimized data storage and automated vector search tuning via VectorDB index mode. The release also enhances AI development and observability through improved tools for building AI agents, native Prometheus support, and more efficient automation workflows.