The DIII-D National Fusion Facility in San Diego has successfully implemented significant upgrades to enhance its capabilities for fusion research. These enhancements offer researchers cutting-edge tools to better control and understand fusion plasmas, accelerating the path to commercial fusion energy and advancing the physics of advanced fusion reactors. The facility, a world-class fusion laboratory under the U.S. Department of Energy, serves as a hub for over 700 researchers from diverse institutions worldwide. The upgrades include improved plasma control systems, new diagnostic instruments such as the Wisconsin Penning gauge for precise pressure measurements, and the Fiber-Optic Bolometer for accurate assessment of radiated power. These enhancements aim to address key physics gaps, support the development of fusion as a reliable energy source, and optimize fusion plasma performance. With these upgrades, researchers will continue to explore fundamental plasma science, fusion power plant operations, and materials research crucial for the future of fusion energy. The advancements at DIII-D signify a significant step towards realizing practical fusion energy and reaffirm its position as a leading fusion research facility.