Worked on the erlang/otp repository to enhance robustness and compatibility in SCTP handling on Linux systems. Addressed a kernel compatibility issue by optimizing the sctp_event_subscribe structure, ensuring it only included the last used option. This targeted change reduced risks associated with forward and backward compatibility, particularly when dealing with various vendor kernels and backported SCTP options. The solution focused on maintaining kernel safety while improving cross-vendor operability. Utilized C for system and network programming, applying a precise fix rather than broad changes. The work demonstrated careful attention to compatibility challenges in low-level networking code, resulting in a safer integration path.