Nils Manthey developed a new feature for the pypa/pip repository, enhancing the --uploaded-prior-to command-line option to accept ISO 8601 durations and relative time formats for dependency cooldowns. Using Python and focusing on CLI development, he implemented logic to parse and handle both absolute and relative timestamps, enabling more flexible and automated version update workflows. He extended unit tests to ensure reliability and maintain backward compatibility, and updated documentation using reStructuredText to clearly communicate the changes. This work improved automation and predictability in dependency management, reducing manual intervention and aligning with established workflows in the pip project.