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#OpenSource
Open Haystack 3.0 Moves Agent Controls into the Core 20 Jul 2026 · Ronald

Haystack 3.0 Moves Agent Controls into the Core

Haystack 3.0 makes agents central to the open-source orchestration framework, adding lifecycle hooks, first-class skills, runtime tool selection and built-in usage metrics. The major release also unifies synchronous and asynchronous pipelines, moves integrations out of the core and tightens pipeline deserialisation defaults.