# Dify 0.5.7 — Release & Upgrade Intelligence
- **Product:** Dify (https://dify.ai)
- **Version:** 0.5.7
- **Released:** Feb 28, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/dify/updates/0.5.7/

## Executive Summary (TL;DR)
Dify 0.5.7. Source highlight: Added `Mistral AI` model provider. #2594

## New Features
- Added `Mistral AI` model provider. #2594
- Added Vector Database migrate tool, see below. #2562
- Added `response format`(JSON/XML) for `google`, `anthropic`, `openai`, `wenxin`, `chatglm`, `tongyi` LLMs. #2563
- Refactor RAG(knowledge) module, remove dependency on langchain to increase scalability and flexibility. #2528
- Agent App utilizing an LLM with ReACT mode (not support function calling), supports streaming output. #2498
- Added DuckDuckGo Search Tool for Enhanced Privacy-Focused Search Functionality by @Yash-1511 #2499

## Improvements
- enhancement: improve client-side code
- enhancement: skip fetching to improve user experience when switching …

## Bug Fixes
- fix: chat restart
- fix: code-based extension
- fix: incorrect tool name
- fix: audio to text
- fix: api doc example error
- fix: config not exists