Living definition
What is WASI 0.3 (Preview 3)?
Edge & Serverless Runtime Compute & Web Infra
- As of
- 2026-07-22
- Revision
- 2026-07-22.1
- Method
- v1.3.0
Definition
The term, in context
AI-assisted draft · approved dataset
WASI 0.3 is a revision of the WebAssembly System Interface that builds native asynchronous operations into the Component Model itself, introducing stream and future types that behave like resource handles passed between components. It lets the host run a single shared event loop across all of them, replacing the manual, poll-based async plumbing that earlier WASI interfaces required.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-07-22, verified readiness is 56 (claimed 70, reported 62, gap 14) — Strong evidence strength; current signals suggest Track; not yet.
The readiness fact belongs to the canonical Readiness Verdict for WASI 0.3 (Preview 3).
Dataset approval
Human editorial release
pragma.vision editorial — standing authorization (operator dev@soft.house, 2026-07-17)
- Dataset
- 2026-07-22.1
- Hash
- sha256:2bf83ba8fe86d0c871510bbef8b13d2db675e4d9efe9c64fe0e754acb6688534
- Approved
- 2026-07-22