During October 2024, Gardo developed a new PATCH endpoint in the ForvaltningController within the navikt/familie-ks-sak repository, enabling updates to a seeker’s identifier with support for handling merged identifiers and optional historical verification. Leveraging Kotlin and Spring Boot for backend and API development, Gardo focused on reusing existing code to minimize risk and reduce maintenance overhead, opting not to introduce new tests for this feature. The solution addressed the need for streamlined identifier updates and improved data integrity for merged identities, ultimately reducing operational complexity while maintaining consistency with the existing codebase and established development practices.