# 🚀 Netdiag v1.1.0 - What's New

## 📋 Changelog

### Version 1.1.0 (2025-10-02)

**🆕 NEW FEATURES:**

#### 1. **Speed Testing & Performance Analysis**
- `bandwidth_test()` - Measure download speed with configurable test sizes
- `ping_latency_test()` - Advanced latency analysis with jitter calculation
- `connection_quality_test()` - Comprehensive connection quality assessment

#### 2. **Network Interface Management**
- `get_network_interfaces()` - Discover and analyze network interfaces
- `get_default_gateway()` - Get system default gateway information
- `analyze_network_config()` - Complete network configuration analysis

#### 3. **Enhanced Export & Logging**
- `export_results()` - Export test results to JSON, CSV, or TXT formats
- `create_logger()` - Advanced logging with multiple levels and file output
- `batch_export()` - Export multiple results in different formats

#### 4. **Extended DNS & Port Scanning**
- `reverse_dns_lookup()` - IP to hostname resolution
- `dns_bulk_lookup()` - Batch DNS lookups for multiple hosts
- `scan_common_ports()` - Optimized scanning for common service ports
- `get_ip_info()` - Geolocation and ISP information for IP addresses

#### 5. **Enhanced CLI Interface**
- New commands: `speedtest`, `interfaces`, `analyze`, `export`
- Improved help system with comprehensive examples
- Better error handling and user feedback

---

## 🎯 Usage Examples

### Speed Testing
```python
from netdiag import bandwidth_test, ping_latency_test, connection_quality_test

# Bandwidth test
speed_result = bandwidth_test('5MB')
print(f"Download speed: {speed_result['download_speed_mbps']} Mbps")

# Latency analysis
latency_result = ping_latency_test('google.com', count=10)
print(f"Average latency: {latency_result['avg_latency']} ms")
print(f"Jitter: {latency_result['jitter']} ms")

# Complete quality assessment
quality_result = connection_quality_test('google.com')
print(f"Connection quality: {quality_result['quality_rating']}")
```

### Network Interface Analysis
```python
from netdiag import get_network_interfaces, get_default_gateway, analyze_network_config

# List network interfaces
interfaces = get_network_interfaces()
for interface in interfaces['active_interfaces']:
    print(f"{interface['name']}: {interface['ip']} ({interface['type']})")

# Get gateway
gateway = get_default_gateway()
print(f"Gateway: {gateway['gateway_ip']}")

# Complete network analysis
analysis = analyze_network_config()
print(f"Network status: {analysis['summary']}")
```

### Export & Logging
```python
from netdiag import ping, export_results, create_logger

# Setup logging
logger = create_logger('netdiag.log', level='INFO')

# Run test and log
result = ping('google.com')
logger.log_test_result('Ping Test', result)

# Export results
export_info = export_results(result, 'ping_test', 'json')
print(f"Results exported to: {export_info['filename']}")
```

### CLI Commands
```bash
# Speed testing
python -m netdiag speedtest 5MB
python -m netdiag speedtest latency google.com
python -m netdiag speedtest quality google.com

# Network interfaces
python -m netdiag interfaces
python -m netdiag interfaces gateway

# Network analysis
python -m netdiag analyze

# Enhanced DNS
python -m netdiag dns bulk google.com,github.com,stackoverflow.com
python -m netdiag dns reverse 8.8.8.8
```

---

## 📊 Feature Comparison

| Feature | v1.0.0 | v1.1.0 |
|---------|--------|--------|
| Core Functions | 6 | 6 |
| Total Functions | 6 | 19 |
| Speed Testing | ❌ | ✅ |
| Interface Analysis | ❌ | ✅ |
| Export Capabilities | ❌ | ✅ |
| Advanced Logging | ❌ | ✅ |
| Extended DNS | Basic | Advanced |
| CLI Commands | 7 | 11 |

---

## 🏗️ Architecture Improvements

### Enhanced Modularity
- New modules: `speedtest.py`, `interfaces.py`, `export.py`
- Better separation of concerns
- Improved code reusability

### Cross-Platform Compatibility
- Better Windows/Linux/Mac support for interface detection
- Platform-specific optimizations
- Fallback mechanisms for unsupported features

### Error Handling & Reliability
- More descriptive error messages
- Graceful degradation for missing features
- Better timeout and exception handling

---

## 🎓 Educational Value

### New Learning Concepts
1. **Network Performance Analysis**
   - Bandwidth measurement techniques
   - Latency and jitter calculations
   - Quality metrics interpretation

2. **System Network Configuration**
   - Interface enumeration methods
   - Gateway discovery techniques
   - Network topology understanding

3. **Data Export & Logging**
   - Multiple format support (JSON, CSV, TXT)
   - Structured logging patterns
   - Batch processing concepts

### Enhanced Real-World Applications
- Professional network troubleshooting
- Performance monitoring automation
- Network configuration auditing
- Educational lab exercises

---

## 📈 Performance Improvements

### Optimizations
- Threaded port scanning for better performance
- Efficient interface discovery algorithms
- Optimized DNS bulk operations
- Smart caching for repeated operations

### Resource Management
- Better memory usage for large operations
- Configurable timeouts and limits
- Background processing for long-running tests

---

## 🛠️ Migration Guide (v1.0.0 → v1.1.0)

### Backward Compatibility
✅ All v1.0.0 functions work without changes
✅ Same API signatures maintained
✅ No breaking changes

### Recommended Updates
```python
# Old way (still works)
from netdiag import ping, dns_lookup, scan_ports

# New enhanced way
from netdiag import (
    ping, dns_lookup, scan_ports,  # Original functions
    ping_latency_test,             # Enhanced ping with statistics
    dns_bulk_lookup,               # Batch DNS operations  
    scan_common_ports,             # Optimized port scanning
    export_results,                # Result export
    create_logger                  # Advanced logging
)
```

---

## 🔮 Future Roadmap

### Potential v1.2.0 Features
- IPv6 support enhancement
- Network monitoring dashboard
- Plugin system for custom tests
- REST API interface
- Performance benchmarking suite

### Community Contributions
- Open for educational use cases
- Welcome bug reports and feature requests
- Contribution guidelines available in repository

---

## 📞 Support & Documentation

- **Full Documentation**: README.md
- **Example Usage**: example.py
- **CLI Help**: `python -m netdiag help`
- **GitHub Repository**: https://github.com/SatriaDivo/netdiag
- **Issues**: https://github.com/SatriaDivo/netdiag/issues

---

**Happy Networking with Netdiag v1.1.0! 🚀**

> *"Enhanced network diagnostics for everyone"* - Netdiag Team