During January 2026, Nigham focused on modernizing the llvm/circt repository by updating its API usage to align with current C++ standards. He replaced all instances of the deprecated make_scope_exit with the modern scope_exit construct, improving code maintainability and reducing future API risk. This effort included a comprehensive migration to CTAD-based APIs, eliminating reliance on older make_*-style patterns and enhancing overall readability. Nigham’s work emphasized API management and code refactoring, ensuring the repository remains compatible with ongoing LLVM-project modernization goals. The changes were implemented in C++ and documented with commit-level traceability, supporting maintainable and CI-friendly development practices.