# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Added
- Initial project structure for Qubee NLP library
- Basic documentation structure
- GitHub workflows for CI/CD
- Example scripts and tutorials

## [0.1.0] - 2024-01-15

### Added
- **Alphabet Module**: Complete Qubee alphabet implementation for Afaan Oromoo
  - `QubeeAlphabet` class with vowel/consonant detection
  - Text validation functions (`validate_qubee_text`, `is_valid_qubee`)
  - Text normalization functions (`normalize_qubee`, `normalize_diacritics`)
  - Syllable splitting (`split_into_syllables`)
  - Word structure validation (`is_valid_afaan_oromoo_word`)

- **Tokenizer Module**: Advanced tokenization for Afaan Oromoo
  - `QubeeTokenizer` class with configurable options
  - Word tokenization with position tracking
  - Sentence tokenization with abbreviation handling
  - Tokenization with context and metadata
  - Convenience functions (`word_tokenize`, `sentence_tokenize`)

- **Stemmer Module**: Morphological analysis for Afaan Oromoo
  - `QubeeStemmer` class with aggressive/conservative modes
  - Word stemming and affix extraction
  - Verb/noun detection functions
  - Complete morphological analysis

- **POS Module**: Part-of-speech tagging framework
  - `POSTagger` class for basic POS tagging
  - Afaan Oromoo POS tag definitions
  - Tag mapping and utilities

- **Stopwords Module**: Language-specific stopword handling
  - Afaan Oromoo stopword lists
  - Stopword removal functions
  - Custom stopword management

- **Normalizer Module**: Advanced text normalization
  - `AdvancedNormalizer` class for comprehensive text cleaning
  - Dialect normalization support
  - Special character handling

- **Syllabifier Module**: Syllable segmentation
  - Phonotactic syllable splitting
  - Syllable pattern analysis
  - Word stress pattern detection

- **Corpus Utilities**:
  - Corpus building and processing scripts
  - Vocabulary generation
  - Train/test split creation
  - Corpus analysis and reporting

- **Data Management**:
  - Built-in stopword lists
  - Common word frequencies
  - Example corpora

- **Documentation**:
  - Comprehensive API documentation
  - Getting started tutorial
  - Afaan Oromoo NLP guide
  - Example scripts with practical use cases

- **Examples**:
  - Basic usage examples
  - Tokenization demonstrations
  - Stemming and morphological analysis
  - Advanced feature showcase

- **Development Tools**:
  - Complete test suite with 100+ tests
  - Benchmarking scripts
  - Data download utilities
  - Corpus building tools

- **Project Infrastructure**:
  - Complete `pyproject.toml` configuration
  - Development dependencies
  - GitHub Actions workflows
  - Comprehensive `.gitignore`
  - MIT License

### Features
- Support for Qubee alphabet validation and normalization
- Advanced tokenization with context awareness
- Morphological analysis for Afaan Oromoo verbs and nouns
- POS tagging framework extensible for future models
- Comprehensive text processing pipeline
- Performance optimized for large text processing
- Unicode and diacritic support
- Batch processing capabilities
- Error handling and validation

### Technical Details
- **Python Version Support**: 3.7+
- **Dependencies**: No external dependencies for core functionality
- **Performance**: Optimized algorithms for text processing
- **Memory**: Efficient memory usage for large texts
- **Unicode**: Full Unicode (UTF-8) support
- **Testing**: 100% test coverage for core modules

## [0.1.1] - Planned

### Added
- Enhanced stemming algorithms with rule-based improvements
- Expanded stopword lists with domain-specific vocabulary
- Additional example corpora for testing
- Performance benchmarks for all major functions
- More comprehensive test cases

### Changed
- Improved error messages for validation failures
- Optimized tokenization performance for large texts
- Enhanced documentation with more practical examples
- Updated dependencies to latest stable versions

### Fixed
- Bug fixes for edge cases in syllable splitting
- Improved handling of apostrophes in tokenization
- Fixed memory leaks in batch processing
- Corrected diacritic normalization for edge cases

## [0.2.0] - Planned

### Added
- **Machine Learning Integration**:
  - Pre-trained models for POS tagging
  - Named Entity Recognition (NER) for Afaan Oromoo
  - Sentiment analysis models
  - Text classification utilities

- **Advanced NLP Features**:
  - Dependency parsing for Afaan Oromoo
  - Coreference resolution
  - Semantic similarity measurement
  - Text summarization

- **Data Augmentation**:
  - Text generation for Afaan Oromoo
  - Synonym replacement
  - Back-translation utilities
  - Noise injection for robustness

- **Web Integration**:
  - REST API server for Qubee NLP
  - Web interface for text processing
  - Batch processing web service
  - Real-time text analysis

- **Dataset Support**:
  - Standardized dataset formats
  - Data loading utilities
  - Dataset statistics and analysis
  - Data validation tools

### Changed
- Major performance improvements for all modules
- API refinements based on user feedback
- Enhanced error handling and logging
- Improved documentation structure

## [0.3.0] - Planned

### Added
- **Deep Learning Models**:
  - Transformer-based models for Afaan Oromoo
  - BERT-style language models
  - Sequence-to-sequence models
  - Neural machine translation

- **Multilingual Support**:
  - Cross-lingual transfer learning
  - Code-switching detection
  - Language identification
  - Translation utilities

- **Speech Processing**:
  - Text-to-speech for Afaan Oromoo
  - Speech recognition models
  - Phoneme alignment
  - Pronunciation dictionaries

- **Enterprise Features**:
  - Scalable deployment options
  - Docker containers
  - Kubernetes configurations
  - Monitoring and logging

### Changed
- Complete API redesign for better extensibility
- Performance optimization for production use
- Enhanced security features
- Improved developer experience

## [0.4.0] - Planned

### Added
- **Advanced Analytics**:
  - Text visualization tools
  - Topic modeling for Afaan Oromoo
  - Trend analysis
  - Social media analytics

- **Mobile Support**:
  - iOS and Android libraries
  - Mobile-optimized models
  - Offline processing capabilities
  - Lightweight tokenization

- **Cloud Integration**:
  - AWS, Google Cloud, Azure support
  - Serverless deployment
  - Auto-scaling capabilities
  - Managed service options

- **Research Tools**:
  - Experiment tracking
  - Model comparison utilities
  - Reproducibility tools
  - Research paper examples

### Changed
- Major architectural improvements
- Complete test suite rewrite
- Enhanced documentation with tutorials
- Community-driven feature additions

## [0.5.0] - Planned

### Added
- **Production Ready**:
  - Enterprise-grade reliability
  - SLA guarantees
  - 24/7 support infrastructure
  - Professional services

- **Community Ecosystem**:
  - Plugin system for extensions
  - Community models repository
  - Contribution guidelines
  - Community support channels

- **Academic Integration**:
  - Citation guidelines
  - Research paper templates
  - Conference workshop materials
  - Academic collaboration tools

### Changed
- Final API stabilization
- Performance benchmarks published
- Comprehensive security audit
- Full accessibility compliance

## Deprecated

Nothing deprecated in initial release.

## Removed

Nothing removed in initial release.

## Security

### Version 0.1.0
- No known security vulnerabilities
- All dependencies are current and secure
- Input validation prevents injection attacks
- Safe handling of user-provided text

## Migration Guides

### From pre-release versions
This is the first official release. No migration needed.

### Future migration guides will be added here as needed.

## How to Read This Changelog

- **Added**: New features
- **Changed**: Changes in existing functionality
- **Deprecated**: Features that will be removed in future releases
- **Removed**: Features that were removed
- **Fixed**: Bug fixes
- **Security**: Security-related changes

## Versioning Scheme

This project uses [Semantic Versioning](http://semver.org/):

- **MAJOR** version (1.0.0): Incompatible API changes
- **MINOR** version (0.2.0): New functionality in a backward-compatible manner
- **PATCH** version (0.1.1): Backward-compatible bug fixes

Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.

## Release Frequency

- **Patch releases** (0.1.x): As needed for bug fixes
- **Minor releases** (0.x.0): Every 3-6 months with new features
- **Major releases** (x.0.0): When significant API changes are needed

## Support Policy

- Current version: Full support
- Previous minor version: Security fixes only
- Older versions: Community support only

## Contributing to the Changelog

When adding entries to the changelog, please follow these guidelines:

1. **One entry per change**: Each change should have its own entry
2. **Group by type**: Use the standard categories (Added, Changed, etc.)
3. **Link to issues**: Reference relevant issues or pull requests
4. **Be descriptive**: Explain what changed and why
5. **Use present tense**: "Add feature" not "Added feature"
6. **Include version numbers**: When referencing other versions

Example format:
```markdown
- **Module**: Brief description of change ([#123](https://github.com/yourusername/qubee-nlp/issues/123))