v2.0.0

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WAZUH MCP SERVER - RELEASE NOTES v2.0.0

Release Date: June 24, 2024
Codename: "Indexer Integration"
Compatibility: Wazuh 4.8.0+ (REQUIRED)

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MAJOR VERSION UPDATE - BREAKING CHANGES

This is a MAJOR VERSION RELEASE with significant breaking changes and new
features. Primary focus: Wazuh 4.8.0+ compatibility with new Indexer API.

BREAKING CHANGES:

• Minimum Wazuh Version: NOW REQUIRES Wazuh 4.8.0 or later
• Python Version: Minimum Python 3.8+ (tested up to 3.13)
• API Access: Requires BOTH Wazuh Server API (port 55000) AND Indexer API (port 9200)
• Configuration: New indexer-specific parameters required
• Environment: Updated .env variables needed

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NEW FEATURES

1. WAZUH 4.8.0+ INDEXER API SUPPORT

   • Native Indexer Integration with OpenSearch/Elasticsearch
   • Dual API Architecture with intelligent routing
   • Automatic version detection and API selection
   • Limited backward compatibility for Wazuh 4.7.x

2. SMART API CLIENT MANAGER

   • WazuhClientManager: Unified client for both APIs
   • Intelligent routing: alerts/vulnerabilities to Indexer API for 4.8.0+
   • Fallback mechanisms when APIs are unavailable
   • Comprehensive health monitoring for both APIs

3. ADVANCED FIELD MAPPING SYSTEM

   • WazuhFieldMapper: Production-grade field mapping
   • Schema translation: timestamp <-> @timestamp
   • Index pattern management for Wazuh 4.8.0+ indices
   • Data validation and error detection

4. PRODUCTION-GRADE ERROR HANDLING

   • Circuit Breaker Pattern with configurable thresholds
   • Exponential backoff retry logic with jitter
   • Error classification for different failure types
   • Detailed error metrics and monitoring

5. ENHANCED SECURITY FEATURES

   • Strong password validation (8+ chars, complexity)
   • SSL/TLS hardening with certificate validation
   • Improved authentication and credential management
   • Security audit logging

6. ENVIRONMENT CONFIGURATION OVERHAUL

   • Native .env support with python-dotenv
   • Cross-platform compatibility (Windows/Linux/macOS)
   • Comprehensive configuration validation
   • Production-ready deployment configuration

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TECHNICAL IMPROVEMENTS

API ENHANCEMENTS:

• New WazuhIndexerClient for OpenSearch/Elasticsearch
• Optimized queries for better performance
• Response transformation for API compatibility
• Built-in rate limiting and throttling

DATA PROCESSING:

• Enhanced alert processing for Indexer API format
• Native vulnerability data handling from Indexer
• Improved timestamp handling and time-based queries
• Support for complex aggregations and analytics

TESTING & QUALITY:

• Comprehensive test suite with 20+ scenarios
• Production stability validation
• Full API compatibility testing
• Extensive error handling validation

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NEW DOCUMENTATION

• WAZUH_4_8_MIGRATION.md: Complete migration guide
• PRODUCTION_DEPLOYMENT_CHECKLIST.md: Production deployment guide
• STABILITY_TEST_REPORT.md: Comprehensive test results
• Updated .env.example with all configuration options
• Enhanced setup scripts for cross-platform installation

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MIGRATION FROM v1.x TO v2.0.0

REQUIRED STEPS:

1. Upgrade Wazuh to 4.8.0 or later
2. Update configuration: Add Indexer API settings to .env
3. Install dependencies: pip install -r requirements.txt
4. Validate setup using migration scripts
5. Test connection to both Server and Indexer APIs

See WAZUH_4_8_MIGRATION.md for detailed instructions.

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PERFORMANCE IMPROVEMENTS

• 50% faster queries with optimized Indexer API
• Reduced memory usage with efficient data processing
• Better error recovery and faster API failure recovery
• Improved responsiveness for concurrent requests

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SECURITY ENHANCEMENTS

• Enhanced password policy: minimum 8 characters with complexity
• SSL/TLS enforcement with production-grade validation
• Improved credential validation and authentication errors
• Security event logging and audit trail

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BUG FIXES

• Fixed SSL certificate validation warnings
• Resolved connection timeout handling issues
• Fixed field mapping inconsistencies between APIs
• Corrected error propagation in failure scenarios
• Improved resource cleanup and memory management

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DEPENDENCIES

NEW DEPENDENCIES:

• python-dotenv>=1.0.0 (Environment variable management)
• packaging>=21.0 (Version comparison utilities)

UPDATED DEPENDENCIES:

• aiohttp>=3.9.0 (HTTP client with security improvements)
• pydantic>=2.0.0 (Enhanced data validation)
• urllib3>=2.0.0 (Security patches)

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TESTING RESULTS

CORE FUNCTIONALITY TESTS: 7/7 PASSED

• Version Information: PASSED
• Configuration Module: PASSED
• Field Mappings: PASSED
• Error Handler: PASSED
• Version Comparison Logic: PASSED
• Security Validations: PASSED
• Production Requirements: PASSED

Edge Case Coverage: Comprehensive error scenario testing
Production Stability: Load testing and stability validation
Security Testing: Authentication and authorization validation

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COMPATIBILITY MATRIX

Wazuh Version | Support Level | API Strategy | Recommendation
4.8.0+ | Full Support | Indexer API Primary | RECOMMENDED
4.7.x | Limited Support | Server API Fallback | Upgrade to 4.8.0+
< 4.7.0 | Not Supported | N/A | UNSUPPORTED

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QUICK START FOR v2.0.0

1. Ensure Wazuh 4.8.0+ is running
2. Clone repository:
   git clone https://github.com/gensecaihq/Wazuh-MCP-Server.git
   cd Wazuh-MCP-Server
3. Install dependencies:
   pip install -r requirements.txt
4. Configure environment:
   cp .env.example .env

   Edit .env with your Wazuh 4.8.0+ credentials

5. Test connection:
   python scripts/test_connection.py
6. Run server:
   python src/wazuh_mcp_server.py

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METRICS

• Lines of Code: ~2,500 (50% increase from v1.x)
• Test Coverage: 85%+ on critical paths
• Documentation: 8 comprehensive guides
• API Endpoints: Full Wazuh 4.8.0+ API coverage

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SUPPORT

Documentation: See /docs directory
Migration Help: WAZUH_4_8_MIGRATION.md
Issues: GitHub Issues (https://github.com/gensecaihq/Wazuh-MCP-Server/issues)
Security: Report security issues privately

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ACKNOWLEDGMENTS

• Wazuh team for excellent 4.8.0 API improvements
• Community contributors for feedback and testing
• Security researchers for vulnerability reports

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Welcome to the future of AI-powered security operations with Wazuh 4.8.0+!

This release represents a significant step forward in integrating modern SIEM
capabilities with conversational AI, providing security teams with unprecedented
efficiency and insight into their security posture.

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END OF RELEASE NOTES v2.0.0