During October 2025, Ke Chong focused on improving the reliability of the pytorch/pytorch repository by addressing a critical issue related to patch governance for CUDA environments. He restricted the Numba CUDA-13 patch to apply only within CUDA environments, preventing unintended side effects in ROCm setups and enhancing test stability. This work involved careful scripting and Python development, leveraging CI/CD pipelines to ensure that environment-specific patches were applied correctly. By establishing a more robust approach to environment detection and patch application, Ke Chong contributed to more consistent cross-ecosystem testing and laid groundwork for future CUDA-related changes within the project.