Answer: The latest version of Haystack is 3.5.0, released on 2026-11-10.
Status: Confirmed
Entry: version/haystack
Revision: 1
Digest: sha256:95f639c3185b2069 (changes whenever the content changes)

Timeline:
  Created: 2026-11-12T11:23:40Z
  Last changed: 2026-11-12T11:23:40Z
  Last verified: 2026-11-12T11:33:51Z
  Next check: 2026-11-13T11:33:51Z
  Check interval: Daily
  Expected change: New releases are published at no fixed schedule.

Data:
  Field | Value | Source | As of
  Latest version | 3.5.0 | [1] | 2026-11-12
  Released | Tue, 10 Nov 2026 12:34:32 GMT | [1] | 2026-11-12

Sources:
  [1] PyPI (haystack-ai). "Haystack: release information". https://pypi.org/rss/project/haystack-ai/releases.xml
      Role: primary. Accessed: 2026-11-12T11:33:51Z
      Quote: "<title>3.5.0</title>" (Supports: Latest version)
      Quote: "els, vector DBs, file converters) to pipelines or agents that can interact with your data.</description>
<author>malte.pietsch@deepset.ai</author>      <pubDate>Tue, 10 Nov 2026 12:34:32 GMT</pubDate>" (Supports: Released)
      Snapshot SHA-256: 57dcad6a8f683fa29fb094f6bb224d9ae9901e1b67ba2374ef99687bbfb8d238 (captured 2026-11-12T11:23:40Z)

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]. On this check the text of [1] was unchanged since 2026-11-12T11:23:40Z, so the values verified then were kept.
  Cross-check: not-available at 2026-11-12T11:33:51Z. No independent second source is configured for this entry
  Last successful check: 2026-11-12T11:33:51Z
  Last attempt: 2026-11-12T11:33:51Z

Notes and limitations:
  "Latest version" is the newest stable version in the registry; pre-releases are excluded.

Change log:
  Time | Event | Change | Source
  2026-11-12T11:23:40Z | added | Entry created | —
  Changes for this entry as a feed: https://latestn.com/version/haystack/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  How: If a value here is wrong or out of date, send what is wrong and a link to evidence.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/haystack
  POST: https://latestn.com/dispute/version/haystack with claim, evidence_url, and optionally field and contact (form-encoded or JSON)
  GET: https://latestn.com/dispute/version/haystack?claim={what is wrong}&evidence_url={link}

How to cite:
    latestN. (2026). What is the latest version of Haystack? Revision 1, last verified 2026-11-12T11:33:51Z. https://latestn.com/version/haystack (accessed 2026-11-12T12:50:44Z).

    @misc{latestN_version_haystack_r1,
      title        = {What is the latest version of Haystack?},
      author       = {{latestN}},
      year         = {2026},
      howpublished = {\url{https://latestn.com/version/haystack}},
      note         = {Revision 1; digest sha256:95f639c3185b2069; last verified 2026-11-12T11:33:51Z; accessed 2026-11-12T12:50:44Z}
    }

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