OpenSearch

OpenSearch Project · current 3.9.0

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The current version of OpenSearch is 3.9.0 (as of 29/09/2026). patchletter checks the official source daily and emails you new releases.

OpenSearch at a glance

OpenSearch is a widely used open-source search and analytics engine — the community fork of Elasticsearch, often the heart of logging and search stacks. OpenSearch ships regular releases plus security fixes; as a data platform holding sensitive content, hardening and timely updates matter.

For admins updates within a major version are rolling and low-risk; major-version jumps follow a documented path with attention to deprecations and possible reindexing. OpenSearch Dashboards tracks the same version. Regardless of patch level, the fundamentals: the security plugin on (TLS, authentication), no open API access, and snapshots as backups — exposed clusters have caused large data leaks. Check client and integration compatibility across versions. Migration from Elasticsearch is common but the projects diverge over time. After updating, verify indexing, search and dashboards. Track the version and its support window; patchletter surfaces new OpenSearch releases.

Version history & changelog · as detected by patchletter

VersionChannelDateNotes
3.9.0STABLE29/09/2026Release notes →
3.8.0STABLE05/08/2026Release notes →
3.7.0STABLE10/06/2026Release notes →
3.6.0STABLE08/04/2026Release notes →
3.5.0STABLE12/02/2026Release notes →
3.4.0STABLE17/12/2025Release notes →
3.3.2STABLE30/10/2025Release notes →
3.3.1STABLE22/10/2025Release notes →
3.3.0STABLE14/10/2025Release notes →
3.2.0STABLE20/08/2025Release notes →
3.1.0STABLE25/06/2025Release notes →
3.0.0STABLE06/05/2025Release notes →
3.0.0-beta1BETA23/04/2025Release notes →
3.0.0-alpha1BETA18/03/2025Release notes →
2.19.6STABLE06/07/2026Release notes →
2.19.5STABLE13/05/2026Release notes →
2.19.4STABLE06/11/2025Release notes →
2.19.3STABLE21/08/2025Release notes →
2.19.2STABLE21/08/2025Release notes →
2.19.1STABLE28/02/2025Release notes →
2.18.0STABLE06/11/2024Release notes →
2.17.1STABLE16/10/2024Release notes →
2.17.0STABLE18/09/2024Release notes →
2.16.0STABLE08/08/2024Release notes →
2.15.0STABLE26/06/2024Release notes →
2.14.0STABLE14/05/2024Release notes →
2.13.0STABLE03/04/2024Release notes →
2.12.0STABLE21/02/2024Release notes →
2.11.1STABLE01/12/2023Release notes →
2.11.0STABLE16/10/2023Release notes →
2.10.0STABLE26/09/2023Release notes →
2.9.0STABLE24/07/2023Release notes →
2.8.0STABLE06/06/2023Release notes →
2.7.0STABLE02/05/2023Release notes →
2.6.0STABLE28/02/2023Release notes →
2.5.0STABLE24/01/2023Release notes →
2.4.1STABLE13/12/2022Release notes →
2.4.0STABLE16/11/2022Release notes →
2.3.0STABLE14/09/2022Release notes →
2.2.1STABLE01/09/2022Release notes →
2.2.0STABLE11/08/2022Release notes →
2.1.0STABLE07/07/2022Release notes →
2.0.1STABLE16/06/2022Release notes →
2.0.0STABLE26/05/2022Release notes →
2.0.0-rc1BETA03/05/2022Release notes →
1.3.20STABLE12/12/2024Release notes →
1.3.18STABLE17/07/2024Release notes →
1.3.17STABLE07/06/2024Release notes →
1.3.16STABLE23/04/2024Release notes →
1.3.15STABLE11/03/2024Release notes →

Frequently asked questions

What is the latest version of OpenSearch?
OpenSearch 3.9.0, released 29/09/2026. patchletter checks the vendor's official source daily for new releases.
Where can I find the OpenSearch release notes?
The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
How do I get notified about new OpenSearch updates?
Tick OpenSearch off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.

An email as soon as a new OpenSearch version ships

We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.

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The badge shows the current OpenSearch version and keeps it up to date. Anyone may embed it, no account needed.

OpenSearch badge
[![OpenSearch](https://patchletter.com/badge/opensearch.svg)](https://patchletter.com/en/software/opensearch)
https://patchletter.com/badge/opensearch.svg

Also available: ?v=eol (end of support) and ?v=cve (actively exploited).

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