April 2026 performance summary: Delivered stability improvements and ensured up-to-date tooling across three Gatling repositories. Cross-repo module resolution was stabilized by removing type=module declarations in gatling/gatling-grpc-demo and gatling/gatling-mqtt-demo, reducing runtime/build risks. Updated Gatling JavaScript library to 3.15.2 in gatling.io-doc to maintain compatibility and access new features. Overall, these changes reduce CI/build friction, improve developer experience, and position the team for upcoming feature work.

March 2026 monthly summary: Delivered cross-repo improvements across gatling.io-doc, gatling-js, gatling-grpc-demo, and gatling-mqtt-demo. Key features delivered include a TS6 upgrade with build optimization in gatling-js, and broad dependency updates (polyfills and ts-simulation) to improve compatibility, security, and performance. Demo projects updated to Gatling 3.15.2 to ensure feature parity and fixes. Documentation corrected for Redirects Auto-Follow description in Gatling docs. These changes reduce technical debt, streamline builds, and position the platform for faster feature delivery.

February 2026 monthly summary focusing on delivering modernization, CI/CD readiness, security hygiene, and extensible gRPC streaming features. Key outcomes include: (1) Gatling JS modernization with dependency upgrades and GitHub Actions-based build, release, and deployment workflows, strengthening release velocity and maintenance. (2) Introduction of a customizable MessageResponseTimePolicy for gRPC streaming to tailor message timing, enabling more accurate performance modeling. (3) Dependency hygiene improvements via lockfile updates across MQTT and gRPC demos, reinforcing security and stability of transient dependencies. These efforts collectively improve reliability, security posture, and scalability of Gatling-based simulations and streaming workloads.

January 2026 highlights: Security and stability improvements across four repositories through transitive dependency updates and Gatling JS upgrade to 3.14.905; comprehensive dependency/lockfile refresh (esbuild, prettier, Node types) to mitigate CVEs and ensure deterministic builds; platform tooling upgrade including GraalJS/GraalVM to 25.0.2 and protoc to 4.33.4 for improved compatibility and performance; removal of Intel Mac support with explicit error handling to align with GraalVM roadmap; cross-repo coordination delivering consistent releases and improved platform readiness. Technologies demonstrated: transitive dependency management, lockfile maintenance, GraalVM ecosystem upgrades, ESBuild optimization, and build-tool modernization.

Month 2025-12 highlights a targeted release workflow upgrade for gatling/gatling-js, delivering cross-platform CI stability and parity. Key actions include updating macOS runners to latest supported versions and aligning Linux builds on Ubuntu 24.04, reducing release friction and ensuring consistent environments across macOS x64, macOS ARM64, and Linux. This work lays the foundation for smoother, more reliable releases and accelerated developer velocity.

October 2025: Delivered GRPC Dynamic Message Conversion to JavaScript Objects in gatling-js, enabling seamless bidirectional conversion between dynamic messages and JavaScript objects. Refactored gRPC client/server stream builders to use input descriptors directly, removing unnecessary dependencies on a dynamic message builder. Implemented robust conversion in the Java adapter for multiple data types and repeated fields, complemented by comprehensive unit tests. This work reduces complexity, improves reliability, and accelerates integration with dynamic gRPC messaging, enhancing developer productivity and production stability.

September 2025 monthly summary focusing on delivering proto tooling, maintaining core dependencies, and keeping documentation aligned with releases across gatling/gatling-js and gatling.io-doc. Key outcomes include enabling Proto compilation end-to-end, keeping the codebase on current GraalVM and MQTT dependencies, and maintaining documentation parity with releases to reduce friction for downstream users.

July 2025 monthly summary for Gatling engineering focusing on delivering value through feature completeness, reliability, and documentation. Highlights include the introduction of WebSocket protocol support in Gatling-js, CI/CD hardening and environment modernization, and improved CI run documentation.

June 2025 monthly summary highlighting reliability, security, and documentation improvements across Gatling repos, with a focus on business value and technical achievements.

Month: 2025-05 — Gatling JS CI and Build Stability Enhancements. Focused on improving CI reliability and runtime compatibility by upgrading the Gatling core to 3.14.0 and aligning GitHub Actions to Java 24. No major bugs fixed this month. Impact: more stable CI pipelines, faster release cycles, and Java 24 compatibility for Gatling JS, enabling teams to run simulations with fewer build issues and improved performance.

Overview for 2025-03: Delivered security, networking, and platform reliability improvements across Gatling JS and its docs. Implemented Custom Trust Store support in the Gatling CLI, integrated npm proxy configurations for Enterprise API calls, upgraded the Gatling Framework to 3.13.5, refreshed the Gatling JS runtime to 3.13.500, and enhanced documentation to guide proxy/trust store configurations and offline runtime deployment. These changes reduce deployment friction, improve secure connections to internal APIs, and strengthen maintainability for faster iteration.

February 2025 monthly summary for gatling/gatling-js: Maintained build health and kept the project on the latest stable Gatling release. Key deliverable was upgrading Gatling from 3.13.3 to 3.13.4 in the build configuration. Major bugs fixed: none reported. Impact: reduced upgrade risk, smoother CI pipelines, and improved stability of performance tests. Technologies/skills demonstrated: dependency management, build configuration, version control hygiene, and release engineering.

January 2025 performance summary for gatling-js: Delivered key features that enhance simulation flexibility, robustness, and maintainability, while aligning with current dependencies. This period focused on creating a configurable dummy action mechanism for network-call emulation, refreshing the underlying framework with a dependency upgrade, and expanding duration handling to support more expressive time units. These changes collectively improve scripting accuracy, reduce maintenance burden, and enable more realistic, deterministic load tests for faster feedback to stakeholders.

December 2024 monthly summary for gatling/gatling-js. Delivered end-to-end bundle tooling, automated distribution, and reliability improvements that simplify installation, reduce manual steps, and enable cross-platform releases. This work enhances developer experience and accelerates time-to-value for Gatling JS bundles.

Month: 2024-11. Concise monthly summary focusing on key accomplishments and business value for gatling/gatling-js. This month delivered significant enhancements to the Gatling JS bundle, including Postman integration support, improved packaging, and privacy/compliance improvements in the test environment. The work accelerates test coverage, improves bundle traceability, and demonstrates strong collaboration across tooling and packaging initiatives.

Month 2024-10 summary: Delivered cross-environment crypto support in gatling-js by implementing Browser Crypto Polyfills for Node.js Modules. This enables secure random byte generation and UUID creation in browser-like environments, improving browser compatibility and reducing deployment friction for client apps. No major bugs fixed this month.

September 2024 monthly performance summary for gatling/gatling-js: Delivered Resource Contents Reading Enhancement, enabling reading resource contents directly as bytes or strings, thereby improving resource handling within Gatling JS. This change reduces boilerplate in test scripts and enables more realistic payload simulations in performance scenarios. No major bugs fixed were documented for this period. Overall impact includes improved resource IO reliability, higher test fidelity, and expanded data handling capabilities for performance tests. Technologies/skills demonstrated include JavaScript/TypeScript development, resource I/O design, commit-driven delivery, and integration with a Git-based workflow to support performance-focused testing.