WASI Preview 3: Native async for WebAssembly components | WebAssembly Unleashed

WASI Preview 3 is a turning point for WebAssembly outside the browser, and this episode explains why. F5's Joel Moses and Oscar Spencer are joined by Bailey Hayes, CTO of Cosmonic, to break down what “native async” really means for the component model, why it took two years to land, and how it changes the way we build polyglot, composable cloud systems.

At the center of P3 is first-class async and concurrency in the canonical ABI. That isn’t just a nicer developer experience, it’s a host-level capability: runtimes can understand who’s waiting on what across composed components, propagate…