# Changelog

## [1.1.0] - 2025-09-02

### Added
- Complete Kohonen Self-Organizing Map implementation
- Growing Self-Organizing Maps (GSOM) with dynamic growth
- Hierarchical SOMs for multi-level data organization
- Advanced visualization suite with U-matrix and component planes
- Interactive map exploration capabilities
- Comprehensive test coverage for all algorithms
- PyPI packaging configuration
- Research-accurate implementations following Kohonen's original papers

### Features
- Classical SOM with configurable neighborhood functions
- GSOM with automatic growth based on quantization error
- Hierarchical organization with recursive partitioning
- Multiple distance metrics (Euclidean, Manhattan, custom)
- Rich visualization tools for map analysis
- Batch and online learning modes
- Flexible architecture for research and applications

### Documentation
- Comprehensive README with usage examples
- Research foundation documentation
- API documentation for all SOM variants
- Scientific citations and algorithmic explanations

### Testing
- 100% test coverage for critical functionality
- Validation tests against classic SOM benchmarks
- Integration tests for visualization components
- Performance benchmarks for large-scale datasets