Release Schedule
For more information on the changes planned for each release, please see the Project Roadmap
See below for criteria for a major releases.
| Release Number | First RC Generated (release window opens) | Latest Possible Release Date (release window closes) | Release Manager | Tracking Issue |
|---|---|---|---|---|
| 3.5.0 | January 27th, 2026 | February 10th, 2026 | Rishabh Singh | 5897 |
| 2.19.5 | March 3rd, 2026 | March 10th, 2026 | Shreya Bhatta | 5895 |
| 3.6.0 | March 24th, 2026 | April 7th, 2026 | Peter Zhu | 5966 |
| 3.7.0 | May 26th, 2026 | June 9th, 2026 | Sayali Gaikawad | 6062 |
| 2.19.6 | June 23rd, 2026 | Divya Madala | 6050 | |
| 3.8.0 | August 4th, 2026 | Rishabh Singh & Shreya Bhatta | 6278 | |
| 3.9.0 | September 29th, 2026 | Sayali Gaikawad | 6426 | |
| 2.19.7 | October 13th, 2026 | October 20th, 2026 | ||
| 3.10.0 | November 3rd, 2026 | November 17th, 2026 | ||
| 2.19.8 | December 8th, 2026 | December 15th, 2026 | ||
| 3.11.0 | January 26th, 2027 | February 9th, 2027 |
OpenSearch follows semver, which means we will only release breaking changes in major versions. All minor versions are compatible with every other minor version for that major. For example, 1.2.0 will work with 1.3.2, 1.4.1, etc, but may not work with 2.0.
For minor version releases, OpenSearch follows “release window” model as described in our releasing documentation. The goal is to release a new minor version approximately every eight weeks which includes all the new features and fixes that are ready to go. Once we enter a release window, every day we will generate a release candidate. When the exit criteria are met by a release candidate, we will make an announcement, update the release date column above and publish new artifacts on that date.
Note: If we cannot pass the exit criteria by 2 weeks after the start of the release cycle window (1 week for 1.x patch releases), we will cancel the minor release and hold changes until the next release window.
In contrast, OpenSearch releases new major versions only when there are a critical mass of breaking changes (e.g. changes that are incompatible with existing APIs). These tend to be tied to Lucene major version releases, and will be announced in the forums at least 4 weeks prior to the release date.
Both the roadmap and the release dates reflect intentions rather than firm commitments and may change as we learn more or encounters unexpected issues. If dates do need to change, we will be as transparent as possible, and log all changes in the changelog at the bottom of this page.
Maintenance Policy
For OpenSearch and other software in the OpenSearch project, new features and active development always takes place against the newest version. The OpenSearch project follows the semantic versioning specification for assigning version numbers to releases, so you should be able to upgrade to the latest minor version of that same major version of the software without encountering incompatible changes (e.g., 1.1.0 → 1.3.x).
Sometimes an incompatible change is unavoidable. When this happens, the software’s maintainers will increment the major version number (e.g., increment from OpenSearch 1.3.z to OpenSearch 2.0.0). The last minor version of the previous major version of the software will then enter a maintenance window (e.g., 1.3.x). During the maintenance window, the software will continue to receive bug fixes and security patches, but no new features.
We follow OpenSSF’s best practices for patching publicly known vulnerabilities and we make sure that there are no unpatched vulnerabilities of medium or higher severity that have been publicly known for more than 60 days in our actively maintained versions.
The duration of the maintenance window will vary from product to product and release to release. By default, versions will remain under maintenance until the next major version enters maintenance, or 1 year passes, whichever is longer. Therefore, at any given time, the current major version and previous major version will both be supported, as well as older major versions that have been in maintenance for less than 12 months. Please note that, maintenance windows are influenced by the support schedules for dependencies the software includes, community input, the scope of the changes introduced by the new version, and estimates for the effort required to continue maintenance of the previous version.
The software maintainers will not back-port fixes or features to versions outside of the maintenance window. That said, PRs with said back-ports are welcome and will follow the project’s review process. No new releases will result from these changes, but interested parties can create their own distribution from the updated source after the PRs are merged.
| Major Version | Latest Minor Version | Status | Initial GA Release | Maintenance Window Start | Maintenance Window End |
|---|---|---|---|---|---|
| 1 | 1.3.20 | End-of-life | July 12th, 2021 | May 26th, 2022 | May 06th, 2025 |
| 2 | 2.19.6 | Maintenance | May 26th, 2022 | May 06th, 2025 | GA release of 4.0. |
| 3 | 3.7.0 | Current | May 06th, 2025 | N/A | N/A |
*Note that the length of the maintenance window is an estimated minimum and the project may, at its discretion, extend it to a later date
Release History
| Release Number | Release Date | Release Manager | Tracking Issue |
|---|---|---|---|
| 2.19.6 | July 2nd, 2026 | Divya Madala | 6050 |
| 3.7.0 | June 9th, 2026 | Sayali Gaikawad & Peter Zhu | 6062 |
| 3.6.0 | April 7th, 2026 | Peter Zhu | 5966 |
| 2.19.5 | March 10th, 2026 | Shreya Bhatta & Divya Madala | 5895 |
| 3.5.0 | February 10th, 2026 | Rishabh Singh | 5897 |
| 3.4.0 | December 16th, 2025 | Divya Madala | 5764 |
| 2.19.4 | November 06th, 2025 | Sayali Gaikawad | 5717 |
| 3.3.2 | October 30th, 2025 | Peter Zhu | 5799 |
| 3.3.1 | October 22nd, 2025 | Peter Zhu | 5784 |
| 3.3.0 | October 14th, 2025 | Peter Zhu | 5693 |
| 3.2.0 | August 19th, 2025 | Sayali Gaikawad | 5595 |
| 2.19.3 | July 22th, 2025 | Rishabh Singh | 5506 |
| 3.1.0 | June 24th, 2025 | Divya Madala & Rishabh Singh | 5487 |
| 3.0.0 (GA) | May 06th, 2025 | Peter Zhu & Zelin Hao | 3747 |
| 2.19.2 | April 29th, 2025 | Zelin Hao & Peter Zhu | 5419 |
| 3.0.0-beta1 | April 22nd, 2025 | Peter Zhu & Zelin Hao | 3747 |
| 3.0.0-alpha1 | March 18th, 2025 | Peter Zhu & Zelin Hao | 3747 |
| 2.19.1 | February 20th, 2025 | Divya Madala & Peter Zhu | 5323 |
| 2.19.0 | February 11th, 2025 | Rishabh Singh, Divya Madala & Peter Zhu | 5152 |
| 1.3.20 | December 11th, 2024 | Brandon Shien, Zelin Hao & Peter Zhu | 4990 |
| 2.18.0 | November 05th, 2024 | Rishabh Singh | 5004 |
| 2.17.1 | October 01st, 2024 | Divya Madala & Peter Zhu | 5046 |
| 2.17.0 | September 17th, 2024 | Sayali Gaikawad | 4908 |
| 1.3.19 | August 27th, 2024 | Brandon Shien | 4888 |
| 2.16.0 | August 07th 2024 | Prudhvi Godithi | 4771 |
| 1.3.18 | July 16th, 2024 | Zelin Hao | 4763 |
| 2.15.0 | June 25th, 2024 | Peter Zhu | 4681 |
| 1.3.17 | June 06th, 2024 | Divya Madala | 4659 |
| 2.14.0 | May 14th, 2024 | Rishabh Singh | 4562 |
| 1.3.16 | April 23rd, 2024 | Zelin Hao | 4531 |
| 2.13.0 | April 2nd, 2024 | Sayali Gaikawad | 4433 |
| 1.3.15 | March 05th 2024 | Jeff Lu | 4294 |
| 2.12.0 | February 20th 2024 | Prudhvi Godithi | 4115 |
| 1.3.14 | December 12th 2023 | Zelin Hao | 4069 |
| 2.11.1 | November 30th, 2023 | Divya Madala | 4161 |
| 2.11.0 | October 16th, 2023 | Rishabh Singh & Peter Zhu | 3998 |
| 1.3.13 | September 21st | Zelin Hao | 3878 |
| 2.10.0 | September 25th | Prudhvi Godithi | 3777 |
| 1.3.11 | June 29th, 2023 | Jeff Lu | 3630 |
| 2.9.0 | July 24th, 2023 | Prudhvi Godithi | 3762 |
| 2.8.0 | June 6th, 2023 | Rishabh Singh & Peter Zhu | 3434 |
| 1.3.10 | May 11th, 2023 | Prudhvi Godithi & Peter Zhu | 3331 |
| 2.7.0 | April 17th, 2023 | Peter Zhu & Zelin Hao | 3230 |
| 1.3.9 | March 9th, 2023 | Jeff Lu | 3195 |
| 2.6.0 | February 28th, 2023 | Sayali Gaikawad | 3081 |
| 1.3.8 | February 2nd, 2023 | Rishabh Singh & Divya Madala | 3012 |
| 2.5.0 | January 24th, 2023 | Rishabh Singh, Peter Zhu & Zelin Hao | 2908 |
| 1.3.7 | December 13th, 2022 | Peter Zhu & Rishabh Singh | 2742 |
| 2.4.0 | November 15th, 2022 | Peter Zhu | 2649 |
| 1.3.6 | October 6th, 2022 | Zelin Hao | 2650 |
| 2.3.0 | September 14th, 2022 | Sayali Gaikawad | 2447 |
| 2.2.1 | September 1st, 2022 |