During December 2025, Tenmasa focused on security hardening and reliability improvements for the dapr/dapr repository. They addressed a TLS hostname validation issue in the dapr-scheduler, ensuring that hostname checks align with the trust domain for more robust certificate validation. By switching hostname resolution from a static TrustDomain field to the dynamic GetTrustDomain() method, Tenmasa reduced the risk of TLS misconfiguration and improved the scheduler’s security posture. Their work, implemented in Go and leveraging backend development and security expertise, demonstrated careful attention to detail and collaborative documentation practices, resulting in a targeted bug fix that enhanced the project’s reliability.