# Changelog

## [1.1.0] - 2025-08-28

### Added
- Integrated GPT-based analysis for comprehensive traffic safety insights
- Added automated report generation with AI-powered recommendations
- Implemented natural language query processing for data exploration
- Added export functionality for analysis reports (PDF/CSV formats)
- Included sentiment analysis for accident description texts

### Enhanced
- Improved data visualization with interactive charts and heatmaps
- Optimized prediction algorithms with enhanced machine learning models
- Expanded dataset with additional traffic parameters and weather conditions
- Upgraded user interface with responsive design and dark mode support

### Fixed
- Resolved session state KeyError in multi-tab navigation
- Fixed data persistence issues between application refreshes
- Corrected timestamp parsing errors in accident data import
- Addressed memory leaks in large dataset processing

### Documentation
- Updated README with new GPT analysis features and usage examples
- Added API documentation for extended functionality
- Included sample datasets and tutorial guides

## [1.0.0] - 2025-08-19

### Added
- Initial release of TrafficSafeAnalyzer
- Streamlit app with tabs for data analysis, prediction, and strategy evaluation

### Fixed
- Resolved session state KeyError

## [1.0.0] - 2025-08-19

### Added

- Initial release of TrafficSafeAnalyzer.
- Streamlit app with tabs for data analysis, prediction, and strategy evaluation.

### Fixed

- Resolved session state KeyError.