Timothy South enhanced data integrity and migration guidance across two repositories during March 2026. In the alphagov/govuk-frontend project, he updated the deprecation warning for the govuk-text-colour mixin, ensuring developers receive accurate migration instructions referencing the correct govuk-functional-colour function. For the Crown-Commercial-Service/ccs-scale-agreements-service repository, Timothy improved supplier contact point management by enforcing the assignment of a primary contact on new relationships and standardizing contact role data during updates. His work utilized Java, SCSS, and Spring, focusing on backend and frontend consistency. These targeted changes reduced downstream errors and improved maintainability, reflecting a thoughtful approach to code quality.