During December 2024, Guillaume Grospellier focused on enhancing test portability and maintainability in the arcaneframework/framework repository. He modernized the test suite by replacing Boost’s remove_reference with the C++ standard library’s std::remove_reference in test_krylov.cpp, targeting multiple lambda expressions to reduce external dependencies. This approach improved cross-environment build and test reliability by aligning the codebase more closely with standard C++ practices and minimizing Boost configuration requirements. Although no bugs were fixed during this period, Guillaume’s work demonstrated a thoughtful application of C++ and Boost expertise, resulting in a more robust and portable testing infrastructure for ongoing development.