Release Schedule and Maintenance Policy - OpenSearch

Release Schedule and Maintenance Policy - OpenSearch
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Release Schedule and Maintenance Policy
Release Schedule
Maintenance Policy
Release History
Change Log
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
2.19.6
June 23rd, 2026
June 30th, 2026
3.8.0
July 14th, 2026
August 4th, 2026
3.9.0
September 22nd, 2026
September 29th, 2026
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
1.3.20
Deprecate
July 12th, 2021
May 26th, 2022
May 06th, 2025
2.19.5
Maintenance
May 26th, 2022
May 06th, 2025
GA release of 4.0.
3.6.0
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
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
Prudhvi Godithi
2481
1.3.5
September 1st, 2022
Prudhvi Godithi
2348
2.2.0
August 11th, 2022
Peter Zhu
2271
1.3.4
July 14th, 2022
Zelin Hao
2205
2.1.0
July 7th, 2022
Sayali Gaikawad
1818
2.0.1
June 16th, 2022
Zelin Hao
Peter Zhu
2165
1.3.3
June 09th, 2022
Prudhvi Godithi
Peter Zhu
2101
2.0.0
May 26th, 2022
Peter Zhu
2086
1.3.2
May 5th, 2022
Zelin Hao
1882
2.0.0-rc1
May 3rd, 2022
Peter Zhu
Zelin Hao
1624
1.3.1
March 30th, 2022
Abhinav Gupta
1885
1.3.0
March 17th, 2022
Zelin Hao
Peter Zhu
889
1.2.4
January 18th, 2022
Abhinav Gupta
Peter Zhu
1417
1.2.3
December 22th, 2021
Peter Zhu
Peter Nied
1365
1.2.0
November 23th, 2021
Sayali Gaikawad
Peter Zhu
Peter Nied
567
1.1.0
October 05th, 2021
Peter Zhu
564
1.0.1
September 01, 2021
Abhinav Gupta
151
1.0.0
July 12th, 2021
Peter Zhu
Sayali Gaikawad
85
1.0.0-rc1
June 7th, 2021
Peter Zhu
Sayali Gaikawad
Sreekar Jami
48
Change Log
Date
Change
Reason
April 7th, 2026
Update 3.6.0 release to the public now
Update Page
March 10th, 2026
Update 3.5.0 / 2.19.5 release to the public now
Update Page
January 12th, 2026
Update release schedule for year 2026
2026 Schedule Issue
January 7th, 2026
Update 3.4.0 release to the public now
Update Page
November 17th, 2025
Update 3.4.0 release manager and issues
Update Page
November 7th, 2025
Update 2.19.4 release to the public now
Update Page
November 4th, 2025
Update 3.3.2 release to the public now
Update Page
October 23rd, 2025
Update 3.3.1 release to the public now
Update Page
October 18th, 2025
Update 3.3.2 release manager and issues
Update Page
October 17th, 2025
Update 3.3.1 release manager and issues
Update Page
October 15th, 2025
Update 2.19.4 release manager and issues
Update Page
October 14th, 2025
Update 3.3.0 release to the public now
Update Page
August 21th, 2025
Update 3.2.0 release to the public now
Update Page
July 21th, 2025
Update 3.2.0 release manager and issues
Update Page
July 11th, 2025
Update 2.19.3 release manager and issues
Update Page
June 24th, 2025
Update 3.1.0 release to the public now
Update Page
May 28th, 2025
Update 3.1.0/2.19.3 release manager and issues, update 1.x deprecation, 2.x maintenance, 3.x current status
Update Page
May 04th, 2025
Update 3.0.0-beta1 and 2.19.2 release history, 1.x / 2.x maintenance window, 3.0.0 GA in-flight
Update Page
April 11th, 2025
Add release manager for 2.19.2 release
2.19.2 release issue
March 19th, 2025
Update 3.0.0-beta1 and 3.0.0 GA schedule
[PROPOSAL] Delay OpenSearch 3.0 Beta (by 2 weeks)
March 05th, 2025
Update 2.19.1 release history
Update Page
February 18th, 2025
Update 2.19.1 release date and shift following patch releases date for 2.19.x, also update the 2.19.0 release history
2.19.1 release issue
February 07th, 2025
Update release schedule for year 2025
2025 Schedule Issue
December 11th, 2024
Update release history for 1.3.20 release
Update Page
November 19th, 2024
Update release history for 2.18.0 release and updated release manager for 1.3.20
1.3.20 release issue
October 25th, 2024
Update release history for 2.17.1 release and current progress of release 2.18.0
Update page
September 04th, 2024
Update release candidate generation date for 2.17.0
Too many last minute PRs causing CI build issues
September 03rd, 2024
Update release history from 2021 to 2023
Update page
August 28th, 2024
Update release history from February to August 2024
Update page
April 26th, 2024
Update release manager for 1.3.16 release
1.3.16 release issue
February 21st, 2024
Update release manager for 1.3.15 release
1.3.15 release issue
February 15th, 2024
Updated 2024 release schedule
Per
Proposal – 186
February 02nd, 2024
Enhancement
Added Release Manager & Tracking issue for each release back through 2023 to add clarity for the community. Reversed release history – latest is at the top
January 04th, 2024
Updated 2.12 date
Per discussion
in this issue
September 29th, 2023
Updated 2.11 date
Per discussion
in this issue
September 11th, 2023
Link to RELEASING.md
updated link from proposal to releasing documentation
September 06th, 2023
Updated 2.10 date
8 hour github outage last night – moving to accomodate a few final fixes
September 05th, 2023
Updated 2.10 date
Original release date was too close to US Labor Day Holiday
August 14th, 2023
Updated release table to reflect release windows
per adoption of
July 20th, 2023
Update to 2.9.0 release date
No-Go on the release meeting call – build issues
July 17th, 2023
Update to 2.9.0 release date
No-Go on the release meeting call – build issues
April 26th, 2023
Update to 2.7.0 release date
Found CVE to resolve, fix issues found in regression tests
January 19th, 2023
Update to 2.5.0 release date
Docs team due diligence, moving to accommodate
January 13th, 2023
Update to 2.5.0 release date
Maps team found last minute issue, moving to accommodate resolution
October 20th,2022
Added Initial 2023 schedule
Current schedule was running out
October 20th, 2022
Increased time between 2.5 code freeze and release
7 days is standard, and there were only 2 days for 2.5
July 01st, 2022
Initial Version
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