During June 2025, Victor Chen focused on improving IP address management stability in the derailed/cilium repository. He addressed a concurrency bug in the Go-based IPAM system, where a race condition could allow an IP address to be reassigned during its release. By refining the logic to ensure IPs are properly removed from release maps before returning to the pool, Victor reduced the risk of misallocation under high network churn. He also expanded test coverage to validate the reassignment scenario and strengthened concurrency handling. His work leveraged Go, Kubernetes, and networking expertise to enhance reliability for multi-tenant environments and operational safety.