# Changelog

All notable changes to SpindleX 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
- Comprehensive API documentation with Sphinx
- Advanced usage examples and tutorials
- Performance optimization guide
- Security best practices documentation
- Async SSH client implementation
- Custom protocol subsystem support
- High-performance file transfer optimizations
- Connection pooling and management
- Built-in performance monitoring
- Extensive logging and debugging capabilities

### Changed
- Improved error handling and exception hierarchy
- Enhanced SFTP client with advanced features
- Optimized cryptographic operations
- Better memory management for large transfers

### Fixed
- Various bug fixes and stability improvements
- Memory leaks in long-running connections
- Race conditions in concurrent operations

### Security
- Enhanced host key verification
- Improved authentication security
- Secure random number generation
- Constant-time cryptographic comparisons

## [0.1.0] - 2024-01-15

### Added
- Initial release of SpindleX
- Complete SSHv2 protocol implementation
- SSH client with all major authentication methods
- SFTP client for secure file transfers
- SSH server implementation
- SFTP server implementation
- Modern cryptographic algorithms (Ed25519, ChaCha20-Poly1305)
- Comprehensive test suite
- Documentation and examples

### Features
- **SSH Client**: Password, public key, keyboard-interactive, GSSAPI authentication
- **SFTP Client**: File upload/download, directory operations, attribute management
- **SSH Server**: Custom server implementation with authentication hooks
- **SFTP Server**: File system operations with access control
- **Port Forwarding**: Local and remote port forwarding
- **Cryptography**: Ed25519, ECDSA, RSA keys; ChaCha20-Poly1305, AES-GCM ciphers
- **Security**: Host key verification, secure defaults, audit logging
- **Performance**: Optimized for high throughput and low latency