April 30, 2026
How cross-project search (CPS) works in Elasticsearch Serverless
Elastic Cloud Serverless cross-project search (CPS) treats index expressions as cross-project by default. This post explains how TransportSearchAction scopes projects, resolves index expressions, skips projects with no matches, and validates index resolution against allow_no_indices and ignore_unavailable.
April 20, 2026
Introducing unified API keys for Elastic Cloud Serverless and Elasticsearch
Learn how Elastic unified control plane and data plane authentication in Serverless with a globally distributed IAM architecture. Use one API key for Cloud and Elasticsearch APIs.
March 24, 2026
Elasticsearch replicas for load balancing in Serverless
Learn how Elastic Cloud Serverless automatically adjusts index replicas based on search load, ensuring optimal query performance without manual configuration.
March 12, 2026
The stateless architecture of Elasticsearch Serverless
Exploring the stateless architecture of Elasticsearch Serverless. Learn how the stateful architecture was transformed into stateless for Serverless.
January 22, 2026
Agent Builder now GA: Ship context-driven agents in minutes
Agent Builder is now GA. Learn how it allows you to quickly develop context-driven AI agents.
January 14, 2026
Higher throughput and lower latency: Elastic Cloud Serverless on AWS gets a significant performance boost
We've upgraded the AWS infrastructure for Elasticsearch Serverless to newer, faster hardware. Learn how this massive performance boost delivers faster queries, better scaling, and lower costs.
March 4, 2025
The AI Agent to manage Elasticsearch Serverless projects
A natural language-powered AI agent that effortlessly manages Elasticsearch Serverless projects—enabling project creation, deletion, and status checks.
December 10, 2024
Autosharding of data streams in Elasticsearch Serverless
In Elastic Cloud Serverless we spare our users from the need to fiddle with sharding by automatically configuring the optimal number of shards for data streams based on the indexing load.
December 2, 2024
Elasticsearch Serverless is now generally available
Elasticsearch Serverless, built on a new stateless architecture, is generally available. It’s fully managed so you can get projects started quickly without operations or upgrades, and you can access the latest vector search and generative AI capabilities.