The latest version of Haystack, v0.8.0, introduces several exciting new features, including the MilvusDocumentStore for vectorized search and Knowledge Graph QA capabilities that enable natural language question answering using structured data from knowledge graphs. The release also includes Pipeline config files for easier experimentation and customization, confidence scores to help model accuracy, and a web crawler component that connects easily to other components and data sources. These features aim to build the most comprehensive and practical framework for search and information retrieval, making it an attractive option for developers building question answering pipelines.