During January 2026, Jun Matsuzawa contributed to the pandas-dev/pandas repository by improving the clarity and reliability of the project’s documentation. He identified and corrected a typo in the release notes for pandas 3.0.0, ensuring that users and developers received accurate information. This work involved technical writing and documentation skills, with a focus on reStructuredText formatting and the use of git for version control. Jun collaborated with the team through the pull request and review process, demonstrating attention to detail. While the scope was limited to a single documentation bug fix, the contribution enhanced user guidance and reduced potential confusion.