Worked on the rust-lang/cc-rs repository to improve Rust code generation by removing support for the deprecated -Z variant in the -Cdwarf-version flag. This update aligned the codebase with the Rust 1.88 stable release pathway, reducing maintenance overhead and improving reliability across toolchains. The approach involved updating tests to reflect the new -C version usage, eliminating outdated -Z paths, and revising documentation links to current DWARF and version guidance. Utilizing skills in compiler development, Rust, and testing, the work focused on enhancing maintainability and shortening CI feedback loops, addressing a targeted bug fix within the project’s code generation process.