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Haystack now mandates certifi version 2026.10.19 or later.

Haystack v3.4.1 now mandates certifi 2026.10.19 or higher.

21 Oct 20261 verified claims1 sources1 observations
What happened

The official source reports this update: v3.4.1. 🔒 Security Notes Haystack now requires certifi>=2026.10.19 . certifi is installed transitively through httpx and posthog ; earlier versions trust eMudhra/emSign certificate authorities whose private keys were compromised ( GHSA-6q48-6c7w-9gw2 ). If you pin certifi , raise the pin to at least 2026.10.19.

Why it matters

This official update documents a development concerning v3.4.1. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

Connected knowledge

Entities affected by this event

Haystacksubject
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Evidence trail

Sources behind the event

Haystack official releasesv3.4.1
Editorial presentation

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