Update changelog with comfyui v0.3.40

changelog/index.mdx

@@ -3,3 +3,36 @@ title: "Changelog"
 description: "Track ComfyUI's latest features, improvements, and bug fixes"
 icon: "clock-rotate-left"
 ---
+
+<Update label="v0.3.40" description="December 26, 2024">
+
+This release brings powerful new workflow utilities and performance optimizations for ComfyUI creators:
+
+## New Workflow Tools
+- **ImageStitch Node**: Concatenate multiple images seamlessly in your workflows - perfect for creating comparison grids or composite outputs
+- **GetImageSize Node**: Extract image dimensions with batch processing support, essential for dynamic sizing workflows
+- **Regex Replace Node**: Advanced text manipulation capabilities for prompt engineering and string processing workflows
+
+## Enhanced Model Compatibility
+- **Improved Tensor Handling**: Streamlined list processing makes complex multi-model workflows more reliable
+- **BFL API Optimization**: Refined support for Kontext [pro] and [max] models with cleaner node interfaces
+- **Performance Boost**: Fused multiply-add operations in chroma processing for faster generation times
+
+## Developer Experience Improvements
+- **Custom Node Support**: Added pyproject.toml support for better custom node dependency management
+- **Help Menu Integration**: New help system in the Node Library sidebar for faster node discovery
+- **API Documentation**: Enhanced API nodes documentation for workflow automation
+
+## Frontend & UI Enhancements
+- **Frontend Updated to v1.21.7**: Multiple stability fixes and performance improvements
+- **Custom API Base Support**: Better subpath handling for custom deployment configurations
+- **Security Hardening**: XSS vulnerability fixes for safer workflow sharing
+
+## Bug Fixes & Stability
+- **Pillow Compatibility**: Updated deprecated API calls to maintain compatibility with latest image processing libraries
+- **ROCm Support**: Improved version detection for AMD GPU users
+- **Template Updates**: Enhanced project templates for custom node development
+
+These updates strengthen ComfyUI's foundation for complex AI workflows while making the platform more accessible to new users through improved documentation and helper tools.
+
+</Update>

zh-CN/changelog/index.mdx

@@ -3,3 +3,36 @@ title: "更新日志"
 description: "跟踪 ComfyUI 的最新功能、改进和错误修复"
 icon: "clock-rotate-left"
 ---
+
+<Update label="v0.3.40" description="2024年12月26日">
+
+本次发布为 ComfyUI 创作者带来了强大的新工作流实用工具和性能优化：
+
+## 新的工作流工具
+- **ImageStitch 节点**：在工作流中无缝拼接多个图像 - 非常适合创建对比网格或复合输出
+- **GetImageSize 节点**：提取图像尺寸并支持批处理，对于动态调整大小的工作流至关重要
+- **Regex Replace 节点**：高级文本处理功能，适用于提示词工程和字符串处理工作流
+
+## 增强的模型兼容性
+- **改进的张量处理**：简化的列表处理使复杂的多模型工作流更加可靠
+- **BFL API 优化**：完善了对 Kontext [pro] 和 [max] 模型的支持，提供更清晰的节点界面
+- **性能提升**：在色度处理中使用融合乘加运算，加快生成速度
+
+## 开发者体验改进
+- **自定义节点支持**：添加 pyproject.toml 支持，改善自定义节点依赖管理
+- **帮助菜单集成**：在节点库侧边栏中新增帮助系统，加快节点发现速度
+- **API 文档**：增强 API 节点文档，支持工作流自动化
+
+## 前端和 UI 增强
+- **前端更新至 v1.21.7**：多项稳定性修复和性能改进
+- **自定义 API 基础支持**：改进了自定义部署配置的子路径处理
+- **安全加固**：修复 XSS 漏洞，确保工作流分享更安全
+
+## 错误修复和稳定性
+- **Pillow 兼容性**：更新了已弃用的 API 调用，保持与最新图像处理库的兼容性
+- **ROCm 支持**：改进了 AMD GPU 用户的版本检测
+- **模板更新**：增强了自定义节点开发的项目模板
+
+这些更新强化了 ComfyUI 处理复杂 AI 工作流的基础，同时通过改进的文档和辅助工具让平台对新用户更加友好。
+
+</Update>