Introducing the TrafficExtension API

Mesh extensibility has always been a core tenet of Istio’s design. By allowing users to inject custom logic directly into the data plane, Istio enables a wide range of use cases for performing custom authentication, collecting specialized telemetry, or transforming requests and responses on-the-fly. Until now Istio’s only supported extensibility API was WasmPlugin , which served WebAssembly-based extensions.