Denys contributed to the joomla/core-translations repository by updating localization documentation to reflect current language support. Focusing on documentation and localization, Denys removed outdated ru-RU locale references and introduced de-DE locale details, ensuring the README and related docs accurately guide contributors and users. The work involved editing Markdown files and leveraging Git for version control, with an emphasis on internationalization best practices. Although no bugs were fixed during this period, Denys’s updates improved clarity around supported locales, reducing confusion for both contributors and end users. The scope was focused, addressing a specific need for up-to-date localization guidance within the project.