Worked on the microsoft/vcpkg repository to deliver a focused upgrade of the bit7z library to version 4.0.11, addressing integrity verification and security concerns. The approach centered on enhancing SHA512 checksum validation and refining versioning behavior, ensuring improved reliability for dependency management. Leveraging skills in C++ and library management, the work emphasized low-risk, well-documented changes with clear traceability throughout the process. CMake and JSON were used to manage build configurations and metadata updates, supporting robust version control practices. The contribution provided a targeted feature enhancement, prioritizing security and maintainability without introducing new bugs, and demonstrated careful attention to repository standards.