# Changelog

All notable changes to the Tractatus Framework 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).

## [3.5.0] - 2025-10-21

### Initial Public Release

This is the first public release of the Tractatus Framework implementation. The framework provides a complete, production-ready implementation of AI governance services.

### Added

#### Core Services (6)
- **InstructionPersistenceClassifier** - Classifies governance instructions by quadrant (STRATEGIC/OPERATIONAL/TACTICAL/SYSTEM/STORAGE) and assigns time-persistence metadata
- **CrossReferenceValidator** - Validates actions against explicit instructions to prevent cached pattern overrides
- **BoundaryEnforcer** - Enforces Tractatus architectural boundaries ensuring values decisions require human judgment
- **ContextPressureMonitor** - Monitors token usage and context pressure, triggering safety protocols at configurable thresholds
- **MetacognitiveVerifier** - Verifies action reasoning and confidence levels, requiring confirmation for low-confidence actions
- **PluralisticDeliberationOrchestrator** - Manages multi-stakeholder deliberation processes ensuring value pluralism in decisions

#### Support Services (4)
- **AnthropicMemoryClient** - Integration with Anthropic Memory API for persistent context
- **MemoryProxy** - Hybrid storage system combining MongoDB with optional Anthropic Memory API
- **RuleOptimizer** - Rule conflict detection and optimization engine
- **VariableSubstitution** - Dynamic variable replacement in governance rules

#### API Endpoints
- `/api/governance` - Framework operations (status, classify, validate, enforce, pressure, verify)
- `/api/rules` - Governance rules CRUD operations and search
- `/api/projects` - Multi-project configuration management
- `/api/audit` - System audit trail and statistics

#### Database Models (9)
- Core models: GovernanceRule, Project, SessionState, VariableValue
- Logging models: AuditLog, GovernanceLog, VerificationLog
- Deliberation models: DeliberationSession, Precedent

#### Testing Infrastructure
- 8 unit tests covering all core services
- 9 integration tests for full framework and API endpoints
- Test helpers and MongoDB test utilities
- Comprehensive test coverage for critical paths

#### Deployment
- Dockerfile with multi-stage build
- docker-compose.yml for local development
- Environment configuration templates
- Sample governance rules JSON
- Deployment quickstart guide and troubleshooting

#### Documentation
- Complete API documentation (Projects, Rules, OpenAPI 3.0 spec)
- Code examples for JavaScript and Python
- Architecture diagrams (main flow, decision trees)
- Deployment and troubleshooting guides
- Contributing guidelines and code of conduct

#### Security Features
- Rate limiting middleware (configurable per endpoint)
- Input validation and sanitization
- Security headers (Helmet + custom CSP)
- Error response sanitization (no stack traces in production)
- CORS configuration

### Technical Highlights

- **Express.js** server with comprehensive security middleware
- **MongoDB + Mongoose** for data persistence
- **Jest** test framework with helpers and fixtures
- **Docker** support with multi-stage builds
- **RESTful API** design following best practices
- **OpenAPI 3.0** specification for API documentation

### What's Included

- 96 carefully curated files (82% reduction from initial repository)
- Production-ready code with no placeholder implementations
- Comprehensive test suite with real-world scenarios
- Complete documentation for implementers
- Docker deployment templates
- GitHub issue and PR templates

### Requirements

- Node.js 18+ (20+ recommended)
- MongoDB 7.0+
- Docker 20+ (for containerized deployment)
- 2GB+ RAM recommended

### Installation

```bash
# Using Docker (recommended)
git clone https://github.com/AgenticGovernance/tractatus-framework.git
cd tractatus-framework/deployment-quickstart
docker-compose up

# Manual installation
npm install
cp .env.example .env
npm start
```

### Links

- **Documentation**: https://agenticgovernance.digital
- **Repository**: https://github.com/AgenticGovernance/tractatus-framework
- **Issues**: https://github.com/AgenticGovernance/tractatus-framework/issues
- **Release**: https://github.com/AgenticGovernance/tractatus-framework/releases/tag/v3.5.0

---

## Release History

### [3.5.0] - 2025-10-21
- Initial public release

---

## Upgrade Guide

### Upgrading from Development Versions

If you were using a pre-release or development version of the Tractatus Framework, this v3.5.0 release represents the first stable, production-ready version. We recommend:

1. **Fresh Installation**: Start with a clean installation rather than upgrading
2. **Review Breaking Changes**: The public API is now stable and documented
3. **Update Dependencies**: Ensure Node.js 18+ and MongoDB 7.0+
4. **Test Thoroughly**: Run the complete test suite after installation
5. **Review Documentation**: Check the updated API documentation for any changes

### Future Upgrades

Future releases will include detailed upgrade instructions in this section.

---

## Contributing

See [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct and the process for submitting pull requests.

## License

This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
