Harness has introduced a new feature that simplifies east-west traffic routing for DevOps teams by integrating with SMI or Istio, aiding in A/B testing, Canary, and Blue/Green Deployments. This feature allows users to split traffic between different environments, providing greater control and customization of their delivery pipelines. By offering an out-of-the-box solution, Harness enables users to easily manage traffic routing through a service mesh, enhancing the flexibility and efficiency of deployment processes. Users can access this feature through a feature flag and are encouraged to contact Harness Support to enable it, thereby improving their pipeline customization and control.