During June 2025, Daniel Jentsch focused on enhancing the robustness of the TastyUnpickler component in the scala/scala3 repository. He addressed a core issue by removing an invalid source-path assumption, which previously introduced instability in the TASTy unpickling process. Daniel reinforced the fix with new regression tests targeting macro expansion and inline functionality, ensuring more reliable downstream compilation. His work, rooted in compiler development and macro programming using Scala, did not introduce new features but instead prioritized correctness and maintainability. The depth of the changes reflects a careful approach to improving the reliability of macro-related workflows in Scala3.