Jim Edrand upgraded the Waydroid core from version 1.4.3 to 1.5.4 in the pacstall/pacstall-programs repository, focusing on enhancing performance and stability within the Waydroid environment. He approached this by updating key dependencies, specifically libgbinder-deb and libglibutil-deb, ensuring improved compatibility and reproducibility in system builds. Leveraging his skills in package management and system administration, Jim utilized Shell scripting to automate and document the upgrade process. While the work addressed core stability and compatibility, no separate bugs were logged during this period, reflecting a targeted, feature-driven contribution with clear commit documentation and a focus on maintainable system upgrades.