Hansolu Lee worked on the Samsung/TizenFX repository, focusing on evolving the API surface for improved maintainability. Over the course of a month, Hansolu deprecated the Context API, particularly targeting the AppHistory module, and marked related data classes such as BatteryStatistics and UsageStatistics as obsolete with plans for future removal. This work involved careful code refactoring in C# and Tizen development, ensuring that the transition would be smooth for downstream developers. Hansolu also updated the developer documentation to provide clear migration guidance, reducing technical debt and simplifying future maintenance. The depth of the changes reflects a methodical approach to API lifecycle management.