Codayon updated the expressjs/expressjs.com repository to align middleware documentation from version 4.x to 5.x across all supported languages. This work involved revising Markdown files to ensure reference links and API descriptions accurately reflected the new middleware versioning, reducing confusion for developers upgrading their applications. By coordinating multilingual content and maintaining consistency in technical writing, Codayon improved onboarding for developers transitioning to Express 5.x. The update leveraged skills in documentation authoring, version control, and cross-language content management. While the scope was focused on a single feature, the changes addressed upgrade friction and enhanced documentation accuracy for the Express community.