Software Development
WASI preview 3: adoption and real cases
WASI preview 3 was stabilized in late 2025 and adds what preview 2 lacked: native async, bidirectional streams, and inter-component concurrency with specified semantics. Portability and async are no longer a trade-off, since one async component runs unchanged on wasmtime, WasmEdge, JCO and the main commercial runtimes. API gateways and SaaS extension plugins are the strongest production cases.