In May 2025, Chaerim Fo enhanced the elastic/beats repository by implementing Redis input authentication for Filebeat, enabling support for username and password credentials in ACL-based Redis deployments. Using Go, they developed backend logic to securely pass authentication details during connection, addressing security and operational requirements for Redis-backed data streams. Chaerim also created comprehensive integration tests to validate both successful and failed authentication scenarios, ensuring robust coverage across multiple credential combinations. Their work focused on authentication, backend development, and networking, ultimately reducing operational risk and expanding deployment flexibility for users relying on Redis as a data source within Filebeat.