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Verification register Compute & Web Infra

Readiness verdict

WASI 0.3 (Preview 3)

A dated reading of what is claimed, reported, and independently verified in the current evidence.

As of
2026-06-28
Revision
1
Method
v1.0.0

Current reading

The readiness gap, in one scan

AI-assisted assembly · derived results

Claimed
70

Public ambition and stated capability

Reported
62

Observed practitioner reporting

Verified
56

Independently supported evidence

Gap
+14

Claimed minus verified

Evidence strength Strong

Decision

What the current evidence supports

Human editorial judgment · 2026-06-28

Track; not yet

Why
Native async is a genuine architectural milestone and momentum is high, but the release is only weeks old, flag-gated on bleeding-edge runtimes, offers concurrency without parallelism, and is explicitly pre-1.0 — adoption risk outweighs benefit for production edge workloads today.
Next
Spike a single non-critical component against Wasmtime 45/46 with WASI 0.3 async to measure real cold-start (p50/p95 with and without precompilation) and density vs the current Workers path; do not put production traffic on it before WASI 1.0.

Constraints

Blockers

No named blocker is present in the current public projection.

Evidence summary

Derived counts

AI-assisted assembly

Total
8
Tier 1
4
Tier 2
0
Tier 3
4
Supports
1
Contradicts
4
Context
3
Latest observed
2026-06-11

Counts and dates only. Raw signals, private excerpts, trust records, and internal corpus material are not published here.

Publication record

Revisions

Initial public reading

This is the initial public reading. No earlier readiness change is recorded.

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