tyle=width:75%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:67.90606653620353%><a data-skipendnotes=true href=/v1.21/blog/2021/wasm-api-alpha/istio-agent-architecture.svg title="Remote Wasm module fetch flow"><img class=element-to-stretch src=/v1.21/blog/2021/wasm-api-alpha/istio-agent-architecture.svg alt="Remote Wasm module fetch flow"></a></div><figcaption>Remote Wasm module fetch flow</figcaption></figure><h2 id=improvements-in-envoy-wasm-runtime>Improvements in Envoy Wasm runtime</h2><p