<meta name=keywords content="microservices,services,mesh,wasm,extensibility,WebAssembly"><meta property="og:title" content="Istio and Envoy WebAssembly Extensibility, One Year On"><meta property="og:type" content="website"><meta property="og:description" content="An update on Envoy and Istio's WebAssembly-based extensibility effort."><meta property="og:url" content="/v1.17/blog/2021/wasm-progress/"><meta property="og:image" content="https://raw.githubusercontent.com/istio/istio.io/master/static/img/istio-so