Kimmo Jyrinki updated external dependencies for the tiiuae/px4-firmware repository, focusing on the px4_fw_update_client and secure_udp submodules. He revised version references to align with the latest compatible upstream releases, ensuring backward compatibility and no changes to functional behavior. This work, primarily involving Git submodule management and version control, improved maintainability and reduced future upgrade risks. By strengthening release traceability and aligning with upstream dependencies, Kimmo set the groundwork for smoother future enhancements. The updates were completed without introducing new features or bug fixes, reflecting a targeted approach to dependency management using tools such as Git and CMake.