Worked on the DataDog/dd-trace-go repository to enhance dataset management by introducing the ability to pull specific historical snapshots of datasets. This feature was implemented through the addition of a WithPullVersion option to the dataset.Pull function, allowing users to retrieve targeted versions for evaluation purposes. The work involved migrating API calls to project-scoped v2 endpoints and threading version information through relevant backend methods. Comprehensive testing was expanded to cover the new versioned pulling functionality, with updates to mocks and pagination tests ensuring reliability. The project utilized Go for backend and API development, with a strong emphasis on robust automated testing practices.