# Dify 0.5.6 — Release & Upgrade Intelligence
- **Product:** Dify (https://dify.ai)
- **Version:** 0.5.6
- **Released:** Feb 19, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/dify/updates/0.5.6/

## Executive Summary (TL;DR)
Dify 0.5.6. Source highlight: Added voice choose for TTS in App. Thanks @charli117!

## New Features
- Added voice choose for TTS in App. Thanks @charli117!
- feat: add `introduction` field in log detail response of chat app
- tts add voice choose
- Tts add voice choose
- Tts add voice choose
- Feature/display selected info for tts

## Bug Fixes
- fix: baichuan frequency_penalty
- fix: tts voice language to zh-Hans instead of zh-CN
- fix: windows load provider file error
- fix: hybrid search may pass rerank enable false
- fix: Add model_uid validation for model_uid in Xinference models
- fix: credential verification of baichuan did not throw all errors