Aten delivered a critical configuration update for the ethereum-optimism/superchain-registry repository, focusing on scheduling and enforcing the Holocene hardfork upgrade for Swell Mainnet. By updating the swell.toml file using TOML and applying configuration management best practices, Aten ensured the network upgrade was both traceable and aligned with governance requirements. The work emphasized robust change documentation and explicit commit messaging, supporting operational readiness and minimizing upgrade risk. Although the scope was limited to a single feature over one month, Aten’s approach demonstrated careful attention to process, reliability, and maintainability in managing network upgrade timing through precise configuration changes.