# 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 implementation of DB-Sync system
- Client-server architecture for file backup synchronization
- 512-bit token authentication system
- blake3 file integrity verification
- Scheduled backup tasks with cron expressions
- Automatic retry mechanism for network failures
- Comprehensive logging and monitoring
- Health check endpoints
- Configuration file support for both client and server
### Security
- Secure token-based authentication
- File integrity verification using blake3 hashes
- Request validation and sanitization
- Secure error handling without information leakage
### Performance
- Asynchronous I/O using Tokio
- Efficient file transfer with chunked uploads
- Concurrent processing support
- Memory-optimized operations
## [0.1.0] - 2025-10-24
### Added
- Initial release to crates.io
- Complete client-server backup synchronization system
- Comprehensive documentation
- Example configurations
- Security best practices implementation
- Production-ready features
### Features
- **Security**: 512-bit token authentication, blake3 verification
- **Reliability**: Auto-retry, error recovery, data integrity
- **Performance**: Async processing, concurrent support
- **Usability**: Simple configuration, detailed logging
- **Maintainability**: Clean code structure, comprehensive docs
### Technical Details
- Built with Rust for memory safety and performance
- Uses Tokio for asynchronous operations
- Warp web framework for HTTP services
- Serde for JSON serialization
- tokio-cron-scheduler for task scheduling
- Comprehensive error handling with thiserror
### Documentation
- Complete README with usage examples
- Deployment guide with step-by-step instructions
- Project summary with architecture overview
- API documentation
- Security guidelines
- Troubleshooting guide
### Configuration
- Flexible JSON-based configuration
- Example configurations provided
- Token generation utility included
- Multi-system support out of the box
### Testing
- Compilation verification
- Functional testing
- Security testing
- Performance validation
### Known Limitations
- HTTP only (HTTPS support planned for future versions)
- No built-in encryption (relies on transport security)
- Single-server architecture (clustering planned)
### Future Enhancements
- HTTPS/TLS support
- End-to-end encryption
- Multi-server clustering
- Web-based management interface
- Advanced monitoring and alerting
- Plugin system for extensibility