Update README.md

Author: danx123

README.md

@@ -27,14 +27,32 @@ This application is designed with a professional interface and comprehensive fea
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 ## 📸 Screenshot
-### For PyQt6, PyQt5, PySide6, PySide2
-![untitled](https://github.com/user-attachments/assets/ba2f6841-b9c3-4f10-9b71-8fb5b0d6515d)
+### For PySide6
+<img width="1365" height="718" alt="Screenshot 2025-11-24 082652" src="https://github.com/user-attachments/assets/a07752d8-f77b-42fe-9bd9-79ec81ed5125" />
+
 
 ---
 
-## 📝 Changelog v4.0.0
-- Update Framework
-- Update Multimedia Plugin
+## 📝 Changelog v4.5.0
+### Added
+System Monitor Status Bar: Implemented a real-time system monitoring bar at the bottom of the application window.
+Displays current CPU and RAM usage with visual progress bars.
+Added dynamic color indicators (bars turn red when usage exceeds 85%).
+Displays current Operating System information (OS Name, Release, and Architecture).
+Application Menu Bar: Introduced a standard top menu bar for better navigation and usability.
+File Menu: Includes options for New/Reset, Save Profile, Load Profile, and Exit.
+Help Menu: Includes Help Content, Register Format, and About dialogs.
+Keyboard Shortcuts: Added standard keyboard shortcuts for improved productivity:
+Ctrl+N: Reset UI / New Project.
+Ctrl+S: Save Configuration Profile (.ncp).
+Ctrl+O: Load Configuration Profile.
+File Association (Windows Registry): Added a feature to register .ncp (Nuitka Compiler Profile) extension in the Windows Registry. Users can now double-click .ncp files to open them directly in the application.
+### Changed
+Modular Architecture: Refactored the codebase to separate UI components. The Menu Bar and System Monitor logic are now handled in a dedicated module (nuitka_menu.py) to improve code maintainability.
+UI Layout: Restructured the main window layout to seamlessly integrate the new Menu Bar and Status Bar without disrupting the existing split-pane design.
+Visual Improvements: Optimized label colors and contrast in the Status Bar for better readability on light-themed environments.
+### Fixed
+Dependency Issue: Removed dependency on shlobj and replaced it with ctypes for Windows Shell notifications, resolving import errors on standard Python installations.
 
 
 ## 📥 Installation & Running