Yannick Weber upgraded the Long-Term Support (LTS) version from 21 to 25 across installation panels in the adoptium/adoptium.net repository, ensuring users install the latest supported LTS and remain aligned with security and compliance standards. He updated both the installation panels and their associated tests, using React for front end development and leveraging JavaScript and TypeScript to implement and validate the changes. The work focused on maintaining traceability and enabling continuous integration validation by reflecting the LTS upgrade in automated tests. This targeted feature addressed a specific compliance requirement, demonstrating depth in maintaining release quality and up-to-date installation experiences.