2025-10 monthly summary for wazuh/wazuh focusing on PCRE2 stabilization and type definition safety improvements in the build system. The changes reduce build-time flakiness, improve portability, and enhance correctness in data handling for regex-related components.

September 2025 focused on strengthening upgrade reliability, router-driven communications, and build/integration readiness for wazuh/wazuh. Deliverables cut across upgrade workflows, router interface improvements, and modernized toolchains, driving reduced risk and faster deployments.

Summary for 2025-08 (wazuh/wazuh): Engineering work focused on stability, maintainability, and test reliability while enabling richer event telemetry. Key outcomes include the addition of an HTTP server for enriched events, improvements to the NDJSON test suite, and extensive codebase cleanup that reduces technical debt and risk in production releases. Several deprecated components were removed (integratord, agentless code, and obsolete daemons such as csyslog, emaild, and reportd), along with cleanup of test infrastructure and configurations. Unit tests and configuration files were fixed to improve CI stability and reduce flaky tests. The combined changes deliver faster feature delivery, lower maintenance costs, and a cleaner foundation for future enhancements.

July 2025 monthly summary for wazuh/wazuh focusing on delivering high-value features, stabilizing parsing, improving observability, and strengthening security and release automation. This period emphasized business value through performance visibility, secure defaults, and streamlined CI/CD for the standalone engine.

June 2025 monthly summary focusing on key accomplishments across wazuh/wazuh and wazuh/qa-integration-framework. Delivered cross-platform Syscollector user data enhancements, robust testing coverage, and configurable Expression Builder improvements. Merge conflicts resolved; integration tests extended to cover user scans.

May 2025 performance summary for wazuh/wazuh: Delivered a multi-platform user data collection expansion, strengthened build/test infrastructure, and improved data_provider scaffolding to support richer security telemetry and easier onboarding of future data sources. Implemented Windows, Linux, and Unix user data collectors; expanded tests and build infra; improved API compatibility; and documented licensing and style updates to support maintainability.

Month: 2025-04 — wazuh/wazuh-agent delivered cross-platform log collection enhancements and improved enrollment documentation. No major bug fixes were recorded for this period. These changes improve observability across Linux/macOS/Windows and streamline agent onboarding, delivering business value through improved log coverage and reduced setup errors.

March 2025 monthly summary for wazuh-agent focusing on inventory improvements, API refactors, and OS-specific configuration. Delivered tangible business value by improving inventory data quality, standardizing package data retrieval, and increasing cross-platform reliability. Key outcomes include clearer inventory payloads, modularized APIs for RPM/NPM/PyPI, and OS-specific defaults improving maintainability and deployment reliability.

February 2025 highlights across wazuh-agent and wazuh: - Delivered key features and reliability improvements with a focus on stability, resource efficiency, and data integrity. - macOS: Prevented Wazuh agent respawning by disabling KeepAlive in com.wazuh.agent.plist, reducing unnecessary processes and resource churn on macOS endpoints. - Inventory defaults: Disabled ports_all and processes scans by default to conserve CPU/memory and align with privacy considerations. - Timeout handling: Standardized timeouts across agent, HTTP client, and sockets with millisecond precision, added a dedicated timeout setter, enforced bounds, and updated mock server behavior. - Journald reliability: Implemented rotation detection, context recreation after rotation, reseeking, and rotation-related logging; added tests to ensure reliability and reduce potential data loss. - Journal FD API: Added sd_journal_get_fd support to the journal library and loaded it at initialization; unit tests updated to cover FD retrieval. Overall, these changes improve stability on macOS endpoints, reduce resource usage and privacy concerns, enhance timeout reliability, and strengthen journald data integrity and observability.

January 2025 (2025-01) monthly summary for wazuh-agent: Key features delivered include Windows Log Collector Architecture and API Modernization (architecture unification, Windows Event API abstraction, namespace restructuring, and Windows-specific tests), Bookmark Removal to simplify log collection, Boost-based Snap Info Retrieval (Boost.Asio/Beast) for Linux, and Documentation/Readme Reorganization for LogCollector (docs relocation and Windows references updated). Major bugs fixed include resolving Windows compile errors during refactor and stabilizing Windows log collection through targeted tests and integration work. Overall impact: enhanced reliability, testability, and cross‑platform consistency; reduced configuration complexity; and improved Linux performance. Technologies demonstrated: cross-platform C/C++, Windows subsystem modernization, Boost libraries, build/test integration, and documentation discipline. This work delivers tangible business value by improving monitoring reliability, reducing maintenance overhead, and accelerating onboarding for new contributors.

December 2024 — wazuh-agent monthly performance summary. Delivered size-aware storage and retrieval enhancements, dynamic configuration for batch sizing, and robust multitype queue improvements that together increase data processing throughput, optimize storage utilization, and improve configurability for diverse workloads. The team introduced safer size handling with a dedicated MessageSize type (later aligned to standard size_t for simplicity), implemented per-message storage metrics and time/size-based cutoffs, and hardened concurrency paths and tests for the multitype queue. Result: higher throughput, lower storage overhead, more predictable performance under varying workloads, and improved test reliability, supporting faster, more cost-efficient releases. Key achievements include the following top deliverables and fixes, with representative commits across the work: - Size-based storage and retrieval enhancements: per-message size metrics, size-based retrieval, and batching improvements. Commits included b053aa742e53451ae25e8277c252110aa773bba7, 855aae5cb774e564e8e7be75277e8fd315f92e65, f56c949c51cefe581924189e1719ad88dec5bdb4, 3d0d2f9f9ddea975d27ddd80fb1d1a4f41729700, e4f9be6b73462681d3e093e9aba8c6b3f72397bf, 43aa0cf72416c8f159abbdf3ebfe822c350caa42. - Dynamic configuration and size unit support: parse size units, dynamic queue parameters, and configuration-driven multi-type queue usage. Commits included 59243fbe00159e0e783acae87e5509e2336a10f6, 381d2f0b0891b175278499f5de473720b9fca6cf, abff1075fbd210c269d42542660ceeab27634c8a, 134a9fadc07323301aac286134973f696b88aac4, 64e7e802978351a08da25808c3da239d4b714b77. - MessageSize type introduction and adoption: introduce safe size handling and adoption across components. Commits included 6875b518950ecdbb934071fb26bb45563458b11c, 19556a0593a1d57878a49f5bde5a0bf925144c11. - Concurrency fixes and multitype queue cleanup: stabilize concurrency paths, move mutex usage to critical points, test fixes after queue changes, and remove unused methods. Commits included 7f1c7c9f174316b042635b8a96a1527a8e215eff, aa1e81378fbdad7ee403661bf9598eebb0974d41, 995255e4a68ab278e3f8fde8a9d34bb2ba369da4, 40885d33fab2c6861b8f46925b24dbea58ee84ca, e36f01db7944ce5edb7cd963d69115d47977ae61. - Rework and alignment for consistency and quality: clang format corrections and related refinements continuing through the period.

November 2024: Delivered major platform-wide improvements in file integrity verification and inventory data modeling, with a focus on security, compliance, and operational efficiency. Implemented unified cross-platform check_files workflow in wazuh/wazuh CI/CD, introduced check_files.py, added platform-specific CSV data for macOS, Windows, and Linux, and refined installation_directory support along with size/size_error handling to align with CIS benchmarks. In wazuh/wazuh-agent, remapped inventory to ECS for packages and ports with new EcsPackageData and EcsPortData handlers, updated key generation, enabled package scanning, and added comprehensive tests. Unified network-related tables into a single network table to simplify data management and querying. Numerous stability and compatibility fixes across scripts and CSV mappings (path handling, directory arguments, Windows/macOS CSV updates, imports for compliance, and RPM/DEB size handling). Overall impact: improved data quality, security posture, and reporting capabilities with stronger CI/CD automation and a standardized data model.