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Haystack v2.31.0：组件迁移与路由增强
原标题：v2.31.0
AI 摘要
Haystack 发布 v2.31.0，为 3.0 做准备，将多个组件迁移至独立集成包并标记弃用，包括 SentenceTransformers、Hugging Face API 等。新增 ConditionalRouter 的 output_passthrough 选项，支持路由复杂类型。DocumentNDCGEvaluator 默认按内容匹配文档，并新增异步支持。
以上摘要由 AI 生成，可能存在误差。事实请以原文为准。
正文节选
## ⭐️ Highlights ### 📦 Slimming down Haystack core ahead of 3.0 This release begins the migration of many components out of `haystack` core and into dedicated integration packages, in preparation for Haystack 3.0. Components with heavy or optional dependencies — including all `SentenceTransformers` embedders and rankers, the Hugging Face API components, the legacy `Generator`s, `TikaDocumentConverter`, `AzureOCRDocumentConverter`, the Whisper transcribers, the OpenAPI connectors, the spaCy
发布时间：2026-07-08 19:34
抓取时间：2026-08-02 00:30
来源机构：deepset