Changelog
Scope
This page is the release ledger. It records what changed and where to inspect it. It does not restate formulas, thresholds, or dataset fields already documented elsewhere.
Changelog
What changed, when it changed, and where to inspect the release.
Current State
Structural release
V7
dataset generated 2026-05-15
Shadow model
V4.3-shadow task-weighted shadow model
Shadow score is published. Promotion into the headline model still depends on validation and anchor-review sign-off.
Release manifest
V7
47 published artifacts in the current ledger
Shadow status
Shadow score is published. Promotion into the headline model still depends on validation and anchor-review sign-off. Release-readiness inputs are shown here so status is auditable instead of implied.
No local input blockers remain
Shadow artifacts are published and the current promotion gates are clear. Moving the shadow model into the headline score is now a release decision, not a missing-data or validation blocker.
Release Ledger
V7 structural release
StructuralPublished 7 Apr 2026 · score V7 · monitor Q4 2025 full
- Promotes the live V7 release: task-concentration-weighted exposure and a demand-persistence proxy on top of the V6 two-axis structural model.
- The canonical public export, sitemap, release manifest, claims matrix, and LLM surfaces now share the same V7 release contract.
- V6 remains preserved as the immediate previous structural baseline for auditability.
V6 structural release
StructuralPublished 1 Apr 2026 · score V6 · monitor Q4 2025 full
- Promotes the live V6 two-axis structural release: deterministic 4-source exposure ensemble, human bottleneck, displacement pressure, and explicit demand resilience.
- The canonical public export now matches the live app dataset and release-governance artifacts.
- Retained as the immediate pre-V7 structural baseline for auditability.
V5 structural release
StructuralPublished 21 Mar 2026 · score V5 · monitor Q4 2025 full
- Promotes the V5 structural model: latent-source posterior exposure, task-mode blending, concentration-driven fragility, and heterogeneous augmentation.
- Transition-adjusted and realized-risk layers are now published alongside the live structural score instead of being collapsed into the headline number.
- Retained as the immediate pre-V6 live baseline for auditability.
V4.3 structural release
StructuralPublished 21 Mar 2026 · score V4.3 · monitor Q4 2025 full
- Retained task-aware structural snapshot from the V4 lineage.
- The separate V4.3 shadow-governance artifact remains published with its own validation and anchor-review gates.
- Retained for auditability beneath the later V5, V6, and V7 releases.
V4.2 structural release
StructuralPublished 21 Mar 2026 · score V4.2 · monitor Q4 2025 full
- Shared methodology core, bootstrap uncertainty, forecast separation, and governance hardening.
- Retained as the final pre-promotion baseline before the task-aware V4.3 release.
V4.0 four-source ensemble milestone
StructuralPublished 19 Mar 2026 · score V4.0 · monitor Q4 2025 full
- Expanded exposure into the four-source ensemble: AIOE, Anthropic, Eloundou, and ILO.
- Preceded the later V4.2 methodology hardening pass.
V3.3 ensemble exposure iteration
StructuralPublished 19 Mar 2026 · score V3.3 · monitor Q4 2025 full
- Introduced the first ensemble-style exposure blend before the final four-source V4 lineage.
- Tracked here for version continuity; no separate frozen public snapshot is retained.
V3.2 confidence-interval milestone
StructuralPublished 19 Mar 2026 · score V3.2 · monitor Q4 2025 full
- Surfaced confidence intervals and recalibrated seniority adjustments.
- Tracked as a methodology milestone, not a retained standalone download.
V3.1 observed-exposure and demand-signal milestone
StructuralPublished 16 Mar 2026 · score V3.1 · monitor Q4 2025 full
- Added Anthropic observed usage and stronger Singapore demand/context layers.
- Version tracked from git history; no separate retained public snapshot.
V3.0 three-layer structural score
StructuralPublished 16 Mar 2026 · score V3.0 · monitor Q4 2025 full
- First full three-layer structural score: exposure, bottleneck, and market modifier.
- Historical public JSON snapshot is still retained.
V2 Singapore occupation scorer
StructuralPublished Jan 2026 · score V2 · monitor Q4 2025 full
- Second-generation methodology before the V3 structural formula rewrite.
- Tracked for lineage continuity; no retained standalone public snapshot.
V1 public alpha
StructuralPublished Dec 2025 · score V1 · monitor Q4 2025 full
- First public alpha of the Singapore occupation AI-impact project.
- Tracked for release lineage only.
V4.3 shadow score published
ShadowPublished 21 Mar 2026 · score V7 · monitor Q4 2025 full
- V4.3 remains published as part of the retained audit trail beneath later live releases.
- Shadow score is published, but promotion into the headline model is still gated by validation and anchor review.
V5 sidecars published
ShadowPublished 21 Mar 2026 · score V7 · monitor Q4 2025 full
- The former live V5 model is archived with its published sidecars and comparison artifacts retained for auditability.
- Each V5 workstream now ships as an auditable sidecar artifact before any future headline-score change.
V5 experimental model published
ShadowPublished 21 Mar 2026 · score V7 · monitor Q4 2025 full
- The former live V5 model is retained as a historical baseline together with its validation and adjunct artifacts.
- Current validation snapshot: structural 2/2, realized 2/4.
MOM Labour Market Report Q4 2025
Official updatePublished 20 Mar 2026 · score V7 · monitor Q4 2025 full
- Fresh official labour report published by MOM.
- Live labour monitor refreshed to the Q4 2025 full vintage.
2026 Q1 quarterly briefing
ReportPublished 21 Mar 2026 · score V7 · monitor Q4 2025 full
- Quarterly movers and briefing context refreshed from frozen snapshots.
- Uses the live monitor artifact vintage current at the time of publication.