OpenSearch Project Blog

The OpenSearch Data Prepper maintainers are happy to announce the release of Data Prepper 2.15. With this version, you can ingest data from Apache Iceberg. This release also extends Prometheus...

At the 23rd Annual Southern California Linux Expo (SCaLE 23x), Navneet Verma and Naveen Taitkonda presented a session titled "OpenSearch: Your Friendly Neighborhood Vector Database." The session highlighted how OpenSearch’s vector search technology is powerful, approachable, and community-driven, making it a practical solution for everyday search challenges.

Modern search is growing rapidly as users demand natural, multimodal, and context-aware retrieval across massive unstructured data. At the same time, search is becoming exponentially more complex, evolving from simple...

Today, we are proud to welcome 10 new ambassadors, expanding the OpenSearch Ambassador Program and building on what this program has already helped us establish.

OpenSearch now offers native gRPC endpoints with Protocol Buffers, featuring an automated conversion pipeline from OpenAPI specifications. Benchmarks show up to 17% throughput improvement for vector search and 22% latency reduction for bulk ingestion compared to REST.

Learn how agentic search in OpenSearch performs across search relevance and execution accuracy benchmarks, achieving 82% query translation accuracy and up to 235% relevance improvements.

At the Linux Foundation Member Summit 2026 in Napa, CA, I had the pleasure of sitting down with James McIntyre, my colleague and chair of the Marketing Outreach Committee for the OpenSearch Software Foundation, for a fireside chat on search modernization and the role of the OpenSearch community in the era of agentic AI.

OpenSearch doc value skip indexes deliver up to 28x faster aggregations on uncorrelated filter and aggregation fields, overcoming key filter rewrite limitations.

Discover why AI agents fail in silence and how OpenSearch Agent Health solves it with open-source trace observability, automated benchmarking, and LLM judge evaluation.

Discover how OpenSearch FP16 vector search performance improved up to 310% throughput using bulk SIMD in OpenSearch 3.5, with progressive optimizations across 3.1, 3.4, and 3.5 reducing p99 latency to 91 ms.

Data Prepper 2.14 adds OpenTelemetry-powered APM service maps, production-ready Prometheus support, Lambda streaming, and cross-region S3 for modern observability.

As OpenSearch continues to evolve, clarity and collaboration matter more than ever. We are transforming how we share the OpenSearch technical roadmap to give you greater visibility into what’s coming next.

Explore OpenSearch's experimental features including Workspace for Dashboards, distributed tracing, and pull-based ingestion. Get early access to tomorrow's innovations while helping shape the future of OpenSearch.

Discover how OpenSearch User Groups grew from 14 to 31 groups worldwide in 2025, connecting over 2,500 community members passionate about open-source search and analytics technology.

Optimize Lucene HNSW vector search in OpenSearch with OS page cache and RAM tuning. Achieve CPU-bound performance for semantic search, RAG, and LLM applications globally.

Discover how OpenSearch Vector Engine transforms enterprise search with AI-powered semantic capabilities, hybrid search, and RAG integration for superior accuracy and relevance.

The OpenSearch Ambassador program is now accepting applications for its next cohort! Applications are open through February 16, and we invite community members who are passionate about the OpenSearch open source project to apply.

In the last couple of months, the OpenSearch Kubernetes Operator has seen significant improvements across security, stability, flexibility, and operational capabilities. We’re excited to announce the 3.0 alpha release of...