Incrementally Extending WASI 0.2 to 0.3 and Beyond
summary
WASI 0.2 ships in January and the release train already produces 0.2.1 and 0.2.2 with OCI integration and a planned 0.2.3; the project aims for a new 0.3 that adds native async support without breaking 0.2 components. Prototypes (Isis Wasfa, component async demo) validate the design, a preview implementation is underway in Wasmtime/Wasmtools, WIT/Wackage publish packages to GHCR, HTTP APIs shrink from 13 resource types to four resource types, and component composition via WAC composition is practical.
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chapters (8)
- 0:00WASI and WebAssembly intro
- 3:07WASI 0.2 features
- 5:13Async support in WASI 0.3
- 8:19Simpler concurrent interfaces
- 10:02Composable concurrency with WAC
- 12:27Implementation progress
- 14:11WASI 0.2 adoption
- 15:54Future WASI plans
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