# Amazon OpenSearch Serverless now refreshes data every 5 seconds

> The default refresh interval for new documents is cut from 10 to 5 seconds, speeding up search and vector queries.

Oossa · 2026-10-22 · https://oossa.com/en/amazon-opensearch-serverless-now-refreshes-data-every-5-seconds

Amazon OpenSearch Serverless now updates its default refresh interval to 5 seconds for both search and vector collections. The refresh interval decides how fast newly added documents become searchable. The change lowers the previous 10‑second default, so data appears in results twice as quickly without any user configuration. It applies automatically to the next‑generation service in all 24 regions where the product is offered.

## The facts

- Default refresh interval reduced from 10 seconds to 5 seconds
- Effective across all 24 AWS regions on Oct 22 2026

## Why it matters

Developers building real‑time search or AI‑driven retrieval systems will see fresher results sooner, improving relevance for rapidly changing data.

## Sources & references

1. [Amazon OpenSearch Serverless now supports a 5-second default refresh interval](https://aws.amazon.com/about-aws/whats-new/2026/10/amazon-opensearch-serverless-supports-5-second-refresh-interval/) – AWS, 2026-10-22

Last updated: 2026-10-22