Chen Yi upgraded the storage collector in the ray-project/kuberay repository by migrating the Aliyun OSS Go SDK from version 1 to version 2, enhancing both functionality and performance for cloud storage integration. The work involved targeted code cleanup, including the removal of unused functions and imports, which reduced the maintenance surface and potential for regressions. Chen Yi also updated configuration documentation to align with the new SDK requirements, ensuring clarity for future contributors. This backend development effort, implemented in Go, improved the reliability of storage operations and positioned the project for smoother SDK upgrades and ongoing enhancements in cloud environments.