@@ -11,6 +11,23 @@ QPyPack 项目的所有重要变更都将记录在此文件中。
 
 # 更新日志 (Changelog)
 
+---
+## [2.8.0] - 2026-08-08
+
+#### 新增
+- **项目沙箱智能感知**：基于脚本路径哈希与 Python 版本/架构生成唯一沙箱标识，加载项目脚本时自动感知识别已有环境并快速复用。
+- **虚拟环境一键清理**：设置面板新增项目虚拟环境清理功能，自动扫描项目关联的虚拟环境，提供一键清理功能。
+- **AI翻译工具**：新增 `update_locales_ai.py` 现代化 GUI 翻译管理工具，填写大模型API后可自动一键补全更新程序的翻译。
+
+#### 改进
+- **环境自愈与容错降级**：重构虚拟环境有效性校验逻辑，检测到环境损坏或清理失败时自动降级至临时沙箱，确保打包流程零中断。
+- **跨平台进程彻底回收**：优化打包任务取消逻辑，Linux / macOS 平台开启独立会话组销毁，彻底解决中断构建时的后台残留进程。
+- **环境检测与降级告警**：优化 Python 解释器版本与架构（x64/x86）检测超时处理，增加完善的异常捕获与日志降级提示。
+- **界面文案精炼**：重构依赖项与虚拟环境复选框文本，统一清理确认对话框按钮样式与风险提示。
+
+#### 修复
+- **国际化词条同步**：补全并同步环境清理、时间戳签名日志及降级告警等新增 UI 词条的简体中文映射。
+
 ---
 
 ## [2.7.5] - 2026-08-06
 
@@ -9,6 +9,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [2.8.0] - 2026-08-08
+
+#### Added
+- **Smart Project Sandbox Sensing**: Generates unique sandbox identifiers based on script path hashes and Python version/architecture. Automatically detects and reuses existing virtual environments upon loading project scripts.
+- **One-Click Virtual Environment Cleanup**: Added a project virtual environment cleanup feature in the Settings panel, automatically scanning associated virtual environments and providing one-click cleanup to free up disk space.
+- **AI Translation Tool**: Introduced `update_locales_ai.py`, a modern GUI translation management studio that automatically completes and updates application translations with one click using LLM APIs.
+
+#### Improved
+- **Self-Healing Environment & Fallback**: Refactored virtual environment validation logic. Automatically falls back to a temporary sandbox if environment corruption or purge failure is detected, ensuring zero-interruption builds.
+- **Thorough Cross-Platform Process Reclamation**: Optimized build cancellation logic by introducing independent process session group termination on Linux / macOS, completely eliminating leftover background processes upon canceling builds.
+- **Environment Detection & Fallback Alerts**: Optimized timeout handling for Python interpreter version and architecture (x64/x86) detection, adding robust exception handling and fallback log alerts.
+- **UI Copy Refinement**: Refactored dependency and virtual environment checkbox labels, unifying cleanup confirmation dialog button styles and risk warnings.
+
+#### Fixed
+- **i18n String Synchronization**: Completed and synchronized Simplified Chinese mappings for new UI strings, including environment cleanup, timestamp signing logs, and fallback warnings.
+
+---
+
 ## [2.7.5] - 2026-08-06
 
 #### Added