Istio 0.1 is the initial release of Istio. It works in a single Kubernetes cluster and supports the following features: - Installation of Istio into a Kubernetes namespace with a single command. - Semi-automated injection of Envoy proxies into Kubernetes pods. - Automatic traffic capture for Kubernetes pods using iptables. - In-cluster load balancing for HTTP, gRPC, and TCP traffic. - Support for timeouts, retries with budgets, and circuit breakers. - Istio-integrated Kubernetes Ingress support (Istio acts as an Ingress Controller). - Fine-grained traffic routing controls, including A/B testing, canarying, red/black deployments. - Flexible in-memory rate limiting. - L7 telemetry and logging for HTTP and gRPC using Prometheus. - Grafana dashboards showing per-service L7 metrics. - Request tracing through Envoy with Zipkin. - Service-to-service authentication using mutual TLS. - Simple service-to-service authorization using deny expressions.