Answer: The latest version of OpenSearch is 3.9.0, released on 2026-09-29.
Status: Confirmed
Entry: version/opensearch
Revision: 1
Digest: sha256:94f19a13cdec2acd (changes whenever the content changes)

Timeline:
  Created: 2026-11-12T12:45:02Z
  Last changed: 2026-11-12T12:45:02Z
  Last verified: 2026-11-12T12:45:02Z
  Next check: 2026-11-13T12:45:02Z
  Check interval: Daily
  Expected change: New releases are published at no fixed schedule.

Data:
  Field | Value | Source | As of
  Latest version | 3.9.0 | [1] | 2026-11-12
  Release tag | 3.9.0 | [1] | 2026-11-12
  Released | 2026-09-29T21:54:18Z | [1] | 2026-11-12
  Release notes | https://github.com/opensearch-project/OpenSearch/releases/tag/3.9.0 | [1] | 2026-11-12

Sources:
  [1] GitHub (opensearch-project/OpenSearch). "OpenSearch: release information". https://api.github.com/repos/opensearch-project/OpenSearch/releases/latest
      Role: primary. Accessed: 2026-11-12T12:45:02Z
      Quote: ""tag_name":"3.9.0"" (Supports: Latest version, Release tag)
      Quote: ""published_at":"2026-09-29T21:54:18Z"" (Supports: Released)
      Quote: ""html_url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.9.0"" (Supports: Release notes)
      Published: 2026-10-20T22:17:25Z
      Snapshot SHA-256: 3876bc746aa48e1b442d4c3d3ee7a01a47dea6764421d258382e15de88dd49d1 (captured 2026-11-12T12:45:02Z)

Verification:
  Method: Read by code directly from the structured data published at [1]; no language model was involved. Every value appears verbatim in a quoted passage of [1].
  Cross-check: not-available at 2026-11-12T12:45:02Z. No independent second source is configured for this entry
  Last successful check: 2026-11-12T12:45:02Z
  Last attempt: 2026-11-12T12:45:02Z

Notes and limitations:
  "Latest version" is the newest release marked as latest on GitHub; pre-releases and drafts are excluded.

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Change log:
  Time | Event | Change | Source
  2026-11-12T12:45:02Z | added | Entry created | —
  Changes for this entry as a feed: https://latestn.com/version/opensearch/latest

Challenge this entry:
  Open challenges: None
  How: If a value here is wrong or out of date, send what is wrong and a link to evidence. Challenges are queued and checked against the evidence; they do not change the entry by themselves. If the entry changes as a result, the change log says so.
  Form: https://latestn.com/dispute/version/opensearch
  POST: https://latestn.com/dispute/version/opensearch with claim, evidence_url, and optionally field and contact (form-encoded or JSON)
  GET: https://latestn.com/dispute/version/opensearch?claim={what is wrong}&evidence_url={link}

How to cite:
    latestN. (2026). What is the latest version of OpenSearch? Revision 1, last verified 2026-11-12T12:45:02Z. https://latestn.com/version/opensearch (accessed 2026-11-12T13:52:56Z).

    @misc{latestN_version_opensearch_r1,
      title        = {What is the latest version of OpenSearch?},
      author       = {{latestN}},
      year         = {2026},
      howpublished = {\url{https://latestn.com/version/opensearch}},
      note         = {Revision 1; digest sha256:94f19a13cdec2acd; last verified 2026-11-12T12:45:02Z; accessed 2026-11-12T13:52:56Z}
    }

URL: https://latestn.com/version/opensearch