February 2026 monthly summary for levizh/rt-thread focusing on stabilizing serial communication on the MCXN947 development board within RT-Thread. Key outcomes include restoring serial port availability and reliable data reception after reconfiguration, enabling uninterrupted development and debugging workflows. The work improves system reliability and reduces downtime for embedded software development.

June 2025 monthly summary for levizh/rt-thread. Focused on enhancing safety and robustness of core data structures in embedded contexts. Implemented a critical security fix in singly linked list node removal to prevent dangling pointers, improving stability for long-running tasks and reducing potential misuse of freed memory. The change is captured by commit 169d84d65adbddf4e08fea812af15f4ca51f389a with a description in Chinese indicating the security risk was resolved.