April 2, 2026
When TSDS meets ILM: Designing time series data streams that don't reject late data
How TSDS time bounds interact with ILM phases; and how to design policies that tolerate late-arriving metrics.
April 1, 2026
LINQ to ES|QL: Write C#, query Elasticsearch
Exploring the new LINQ to ES|QL provider in the Elasticsearch .NET client, which allows you to write C# code that’s automatically translated to ES|QL queries.
March 20, 2026
Fast vs. accurate: Measuring the recall of quantized vector search
Explaining how to measure recall for vector search in Elasticsearch with minimal setup.
March 2, 2026
Adaptive early termination for HNSW in Elasticsearch
Introducing a new adaptive early termination strategy for HNSW in Elasticsearch.
February 25, 2026
Elasticsearch vector search is up to 8x faster than OpenSearch
Exploring filtered vector search benchmarks of OpenSearch vs. Elasticsearch and why vector search performance is critical for context-engineered systems.
February 16, 2026
Elasticsearch 9.3 adds bfloat16 vector support
Exploring the new Elasticsearch element_type: bfloat16, which can halve your vector data storage.
February 10, 2026
How to defend your RAG system from context poisoning
How context engineering techniques prevent context poisoning in LLM responses.
February 5, 2026
ES|QL dense vector search support
Using ES|QL for vector search on your dense_vector data.
February 4, 2026
Speed up vector ingestion using Base64-encoded strings
Introducing Base64-encoded strings to speed up vector ingestion in Elasticsearch.