Worked on the joomla/core-translations repository to update localization documentation, focusing on aligning project materials with current language support. The main feature involved removing outdated ru-RU locale references and introducing de-DE locale details, ensuring that the README and related docs accurately reflected supported languages. This effort improved clarity for contributors and end users by reducing confusion around available localization options. The work was carried out using Markdown for documentation and Git for version control, with a strong emphasis on internationalization and localization best practices. No bugs were addressed during this period, as the focus remained on documentation and process accuracy.