Jean-Christophe Bauduin upgraded the kernel and bootloader for the imx7d-sdb board in the home-assistant/buildroot repository, focusing on stability, security, and future platform readiness. He updated the Linux kernel to version 6.6.58 and U-Boot to 2024.10, refining build configurations and hash files to ensure compatibility and reliability. His work involved Shell scripting and embedded systems expertise, with careful attention to dependency management and baseline modernization. By aligning the board’s software stack with current standards, Jean-Christophe enabled smoother integration of future features and improved the board’s security posture, demonstrating depth in bootloader development and kernel engineering within embedded environments.