Elastic announced version 9.5 of Elasticsearch and the Elastic Stack, making PromQL GA and introducing Columnar Mode, VectorDB index mode, and multimodal semantic search.

Key Details

• Promoted native PromQL, Dashboards API, Cases as Data, and natural language authoring to general availability.
• Introduced Columnar Mode and Columnar Logs in technical preview for lower storage usage and faster analytical queries.
• Added VectorDB index mode and auto-calibration for DiskBBQ vector search to simplify index tuning.
• Introduced a multimodal semantic field powered by the jina-embeddings-v5-omni model for text, images, audio, video, and PDFs.
• Added Elastic Agent Builder observability, OpenTelemetry tracing, and human-in-the-loop approvals with Slack.
• Introduced the ES95 codec storing metrics at roughly three bytes per sample, approximately 20% lower than version 9.4.

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