During December 2025, Karan Singh focused on enhancing the documentation for the numpy/numpy repository, specifically targeting the NumPy 1.11.0 release. He delivered improved release notes and API documentation, clarifying usage guidance for unary operations such as np.negative and np.positive. Using Python and reStructuredText, Karan refined examples and explanations to improve API discoverability and support developer onboarding. His technical writing and documentation skills contributed to clearer branding and more accessible guidance for users. While no bugs were fixed during this period, the depth of his work lay in elevating documentation quality, ensuring that both new and experienced developers benefit.