Update changelog with comfyui v0.3.49 (#328)

* Add/update changelog/index.mdx

* Add/update zh-CN/changelog/index.mdx

Author: coderfromthenorth93

changelog/index.mdx

@@ -4,6 +4,44 @@ description: "Track ComfyUI's latest features, improvements, and bug fixes"
 icon: "clock-rotate-left"
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+<Update label="v0.3.49" description="August 5, 2025">
+
+**Enhanced UI Experience & Advanced Model Support**
+
+This release brings significant user experience improvements and cutting-edge model support that enhance workflow creation and performance across diverse AI applications:
+
+## User Interface Enhancements
+- **Recently Used Items API**: New API for tracking recently used items in the interface, streamlining workflow creation by providing quick access to frequently used nodes and components
+- **Improved Workflow Navigation**: Enhanced user experience with better organization of commonly accessed elements, reducing time spent searching for nodes
+
+## Advanced Model Integration
+- **Qwen Vision Model Support**: Initial support for Qwen image models with comprehensive configuration options including default shift settings and flexible latent size handling
+- **Optimized Image Processing**: Enhanced Qwen model integration allows for more versatile image analysis and generation workflows, expanding AI capabilities for vision tasks
+
+## Revolutionary Video Generation
+- **Veo3 Video Generation**: Added powerful Veo3 video generation node with integrated audio support, enabling creators to produce high-quality video content with synchronized audio directly in ComfyUI workflows
+- **Audio-Visual Synthesis**: Breakthrough capability combining video and audio generation in a single node, perfect for content creators and multimedia professionals
+
+## Performance & Stability Improvements
+- **Enhanced Memory Management**: Optimized conditional (cond) VRAM usage through improved casting and device transfer operations, reducing memory overhead during complex generation tasks
+- **Device Consistency**: Comprehensive fixes ensuring all conditioning data and context remain on correct devices, preventing crashes and improving workflow reliability
+- **ControlNet Stability**: Resolved critical ControlNet compatibility issues, restoring full functionality for precise image control workflows
+
+## Developer & System Enhancements
+- **Robust Error Handling**: Added intelligent warnings and crash prevention when conditioning devices don't match, improving workflow debugging and stability
+- **Template Updates**: Multiple template version updates (0.1.47, 0.1.48, 0.1.51) maintaining compatibility with latest development standards and ensuring smooth node integration
+
+## Workflow Benefits
+- **Faster Iteration**: Recently used items API enables quicker workflow assembly and modification
+- **Enhanced Creativity**: Qwen vision models open new possibilities for image understanding and manipulation workflows
+- **Professional Video Production**: Veo3 integration transforms ComfyUI into a comprehensive multimedia creation platform
+- **Improved Reliability**: Memory optimizations and device management fixes ensure stable operation with complex, multi-model workflows
+- **Better Performance**: Optimized VRAM usage allows for more ambitious projects on systems with limited resources
+
+This release significantly expands ComfyUI's capabilities, particularly for multimedia creators and professionals working with advanced vision models, while improving the overall user experience through better interface organization and enhanced system stability.
+
+</Update>
+
 <Update label="v0.3.48" description="August 2, 2025">
 
 **Core API Enhancement & Performance Optimizations**
@@ -101,7 +139,6 @@ This release focuses on expanding hardware support and enhancing audio processin
 These improvements make ComfyUI more accessible across different hardware platforms while enhancing audio processing capabilities essential for modern multimedia AI workflows.
 
 </Update>
-
 <Update label="v0.3.45" description="July 21, 2025">
 
 **Advanced Sampling & Training Infrastructure Improvements**

zh-CN/changelog/index.mdx

@@ -4,6 +4,43 @@ description: "跟踪 ComfyUI 的最新功能、改进和错误修复"
 icon: "clock-rotate-left"
 ---
 
+<Update label="v0.3.49" description="2025年8月5日">
+
+**增强的用户界面体验与先进模型支持**
+
+此版本带来了重大的用户体验改进和前沿的模型支持，提升了工作流创建和在各种AI应用中的性能表现：
+
+## 用户界面增强
+- **最近使用项目 API**：新增用于跟踪界面中最近使用项目的 API，通过提供对常用节点和组件的快速访问来简化工作流创建
+- **改进的工作流导航**：通过更好地组织常用元素来增强用户体验，减少搜索节点所花费的时间
+
+## 先进模型集成
+- **Qwen 视觉模型支持**：初步支持 Qwen 图像模型，包含全面的配置选项，包括默认偏移设置和灵活的潜在空间尺寸处理
+- **优化的图像处理**：增强的 Qwen 模型集成允许更多样化的图像分析和生成工作流，扩展了视觉任务的AI能力
+
+## 革命性的视频生成
+- **Veo3 视频生成**：添加了强大的 Veo3 视频生成节点，集成了音频支持，使创作者能够直接在 ComfyUI 工作流中制作具有同步音频的高质量视频内容
+- **音视频合成**：突破性功能，在单个节点中结合视频和音频生成，非常适合内容创作者和多媒体专业人士
+
+## 性能与稳定性改进
+- **增强的内存管理**：通过改进的类型转换和设备传输操作优化条件 (cond) VRAM 使用，减少复杂生成任务期间的内存开销
+- **设备一致性**：全面修复确保所有条件数据和上下文保持在正确的设备上，防止崩溃并提高工作流可靠性
+- **ControlNet 稳定性**：解决了关键的 ControlNet 兼容性问题，恢复了精确图像控制工作流的完整功能
+
+## 开发者与系统增强
+- **强大的错误处理**：当条件设备不匹配时添加智能警告和崩溃预防，改进工作流调试和稳定性
+- **模板更新**：多个模板版本更新 (0.1.47, 0.1.48, 0.1.51)，保持与最新开发标准的兼容性，确保平滑的节点集成
+
+## 工作流优势
+- **更快的迭代**：最近使用项目 API 实现更快的工作流组装和修改
+- **增强的创造力**：Qwen 视觉模型为图像理解和操作工作流开辟了新的可能性
+- **专业视频制作**：Veo3 集成将 ComfyUI 转变为综合的多媒体创作平台
+- **改进的可靠性**：内存优化和设备管理修复确保复杂的多模型工作流稳定运行
+- **更好的性能**：优化的 VRAM 使用允许在资源有限的系统上进行更雄心勃勃的项目
+
+此版本显著扩展了 ComfyUI 的功能，特别是对于使用先进视觉模型的多媒体创作者和专业人士，同时通过更好的界面组织和增强的系统稳定性改善了整体用户体验。
+
+</Update>
 <Update label="v0.3.48" description="2025年8月2日">
 
 **核心 API 增强与性能优化**