Dong Hao upgraded the Fish Shell package in the openwrt/packages repository, focusing on resolving regressions introduced in version 4.1.0 to improve stability and user experience for OpenWrt deployments. He addressed issues such as remote file path completion errors, ls output formatting inconsistencies, and prompt redraw problems, while also enhancing compatibility with tools like Midnight Commander and Zellij. Using Makefile and leveraging skills in build systems and package management, Dong Hao validated the update against core OpenWrt workflows. His work reduced support friction and improved scripting reliability, demonstrating careful attention to integration and the needs of OpenWrt users.