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Verification register Compute & Web Infra

Readiness verdict

Apache Iceberg v3 / v4 spec

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

As of
2026-08-20
Revision
1
Method
v1.3.0

Current reading

Readiness band and full integer triple

AI-assisted assembly · derived results

Readiness band

Watch

Primary summary from verified readiness

Confidence
82% · stale
Computed at
2026-08-20T10:52:27.134748+00:00
Claimed
70

Public ambition and stated capability

Reported
63

Observed practitioner reporting

Verified
54

Independently supported evidence

Gap
+16

Claimed leads verified

Evidence strength Strong

Decision

What the current evidence supports

Human editorial judgment · 2026-08-20

Adopt with guardrails

Why
v3 is ratified with broad multi-vendor backing (AWS, Databricks, Google, Snowflake, Starburst) and real CDC/compaction wins, but support is engine-by-engine and v4 is still scaffolding — adopt v3 selectively, do not bank on v4.
Next
Adopt v3 deletion vectors + row lineage on engines that fully support them (verify per-engine via AWS/Databricks/Snowflake matrices before setting format-version=3); plan the Java 17/21 upgrade for 1.11; treat v4 as design-watch only.

Constraints

Blockers

No named blocker is present in the current public projection.

Evidence summary

Derived counts

AI-assisted assembly

Total
12
Tier 1
2
Tier 2
8
Tier 3
2
Supports
4
Contradicts
2
Context
6
Latest observed
2026-06-05

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

Publication record

Revisions

Initial public reading

  1. 2026-07-19 Reading moved from watch to watch.

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