梳理 Python AI 编排框架 deepset-ai/haystack 的组件构成、README 所述的支持范围,以及 v3.4.0 版本的变更内容未予提供这一情况。
GitHub 项目说明: Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.