Haystack 3.5.0
Haystack 3.5.0 adds OpenAI Decisions API routers, a document classifier, and a structured output hook for agents.
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Haystack changelog
6 versions of Haystack from deepset in The Deploy Log. From to . On the median a new version every 14 days, publisher's dates only; the longest wait was 19 days. The newest is 3.5.0. 3 versions in the last 30 days. Each links the publisher's own page.
| Version | Publisher's date | Days after the one before |
|---|---|---|
| 3.5.0 | 0 | |
| v3.5.0 | 26 | |
| v3.4.0 | 14 | |
| 3.3.0 | 0 | |
| v3.3.0 | ||
| 2.31.1 |
Haystack v3.5.0
Adds OpenAIDecisionsTextRouter, OpenAIDecisionsImageRouter, and OpenAIDecisionsDocumentClassifier.
Haystack v3.4.0
Haystack v3.4.0 released with Python 3.15 support and ToolResultOffloadCompactor.
Haystack 3.3.0
Haystack 3.3.0 released with faster SentenceWindowRetriever, BM25 retrieval changes, and CJK tokenization fixes.
Haystack v3.3.0
SentenceWindowRetriever now queries the Document Store once per run instead of once per retrieved document.
Haystack 2.31.1
Haystack 2.31.1 requires anyio>=4.14.2 and certifi>=2026.10.19 to address CVEs.
One line every time AI actually ships, around the clock, free on Threads and Bluesky. Every one is in The Deploy Log with its source.