During June 2025, Dave Waddling developed a configuration management enhancement for the OpenLiberty/open-liberty repository, focusing on improving FAT checkpoint test configurability. He introduced a new criu_branch property within fatCommon.properties, enabling explicit specification of the CRIU version used for checkpoint testing in supported environments while maintaining compatibility with z/OS. This approach improved reproducibility and traceability by allowing deterministic cross-environment validation and commit-level documentation. Dave’s work centered on properties file management and configuration management practices, delivering a targeted feature that clarified feature boundaries and streamlined test setup. The depth of the change addressed a specific need without introducing unnecessary complexity.