Haystack v3.1.1-rc1 发布：修复消息转换器错误

AI 摘要

Haystack 发布了 v3.1.1-rc1 版本，主要修复了 OpenAI 和 Hugging Face 消息转换器在处理无内容部分的助手消息时的错误。这些修复确保了包含空内容的助手消息能够被正确接受和传递，从而避免后续 LLM 调用失败。

正文节选

# Release Notes ## v3.1.1-rc1 ### Bug Fixes - The OpenAI Chat Completions and Responses converters no longer raise on an assistant message with no content parts, which a Chat Generator returns when it discards a malformed tool call. It is sent with empty content, which the APIs accept, so the next LLM call goes through. `ChatMessage.from_openai_dict_format` accepts the same empty content, so such a message round-trips. - The Hugging Face message converter no longer raises on an assistant mess

发布时间：2026-09-03 15:27

抓取时间：2026-09-03 16:10

来源机构：deepset