Worked on enhancing package management for the CGNS library within the spack/spack and spack/spack-packages repositories, focusing on adding support for CGNS version 4.5.0. Used Python to update package definitions, incorporating version-controlled metadata and SHA256 checksums to improve build reproducibility. Introduced a build dependency on CMake 3.20 or newer, aligning packaging with modern toolchain requirements and ensuring compatibility for downstream users. The work emphasized disciplined version management and addressed build reliability, facilitating smoother adoption of new CGNS releases. No bug fixes were recorded, with efforts concentrated on feature development and maintaining robust packaging standards across multiple repositories.