Vladimir Zhestikov completed a targeted runtime upgrade for the nginx.org repository, focusing on advancing the NJS module to version 0.9.0. This work involved updating the JavaScript runtime dependency within the Nginx codebase, ensuring compatibility with recent performance improvements and bug fixes. By integrating the new NJS version, Vladimir enabled the platform to leverage enhanced JavaScript execution and paved the way for future feature development. The upgrade required careful coordination with existing build and deployment processes, utilizing skills in C, JavaScript, and dependency management. The scope was focused, delivering a single feature with depth and attention to long-term maintainability.