In February 2026, Louis Forthomme enhanced the root-project/root repository by improving the usability of the LorentzVector class API. He introduced alias methods SetT, SetX, SetY, and SetZ, which map directly to existing internal coordinate accessors, aligning the API with common patterns in ROOT::Math::XYZTVector and related classes. This C++ development work focused on software engineering best practices and mathematical consistency, making the API more intuitive for developers working with cartesian coordinate systems. Although the contribution was limited to a single feature and did not address bug fixes, it provided a thoughtful improvement to developer experience and onboarding.