Worked on the shader-slang/slang repository to address compatibility issues with older HLSL compilers, specifically targeting support for the 2018 version. The update involved modifying preprocessor definitions and aligning test expectations to ensure stable builds for downstream users relying on legacy HLSL versions. Changes were made to slang.cpp and associated .expected test files, reflecting a careful approach to maintaining backward compatibility. This work required expertise in C++, HLSL, and shader development, as well as a solid understanding of build systems and compiler development. The result was a more robust codebase that reduces platform-specific issues for legacy shader workflows.