- Added support for multiple CDN fallbacks from index.json configuration
- Implemented GZIP response handling for all requests
- Added version selection menu via GitHub Gist index
- Improved error handling and logging system
- Added progress tracking in window title
- Removed file count from console output (kept in title only)
- Enhanced download reliability with retries and checksum verification
- Added proper cleanup on Ctrl+C interrupt
- Refactored code structure for better maintainability
