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
V5
dataset generated 2026-03-21
Shadow model
V4.3-shadow task-weighted shadow model
The V4.3 shadow model was first promoted into the live structural release and is now retained as the immediate pre-V5 baseline. The shadow artifacts remain published for auditability against the earlier V4.2 baseline.
Release manifest
V5
40 published artifacts in the current ledger
Shadow status
The V4.3 shadow model was first promoted into the live structural release and is now retained as the immediate pre-V5 baseline. The shadow artifacts remain published for auditability against the earlier V4.2 baseline. Release-readiness inputs are shown here so status is auditable instead of implied.
No local input blockers remain
Shadow artifacts remain published and the promoted live release can still be audited against the retained V4.3 and V4.2 baselines.
Release Ledger
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.
- V4.3 remains retained as a historical downloadable snapshot for auditability.
V4.3 structural release
StructuralPublished 21 Mar 2026 · score V4.3 · monitor Q4 2025 full
- Promotes the task-aware exposure upgrade from the published V4.3 shadow model into the live structural score.
- Bootstrap uncertainty tracks the promoted task-aware exposure layer where weighted task evidence exists.
- Retained as the immediate pre-V5 live baseline for auditability.
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 model promoted
ShadowPublished 21 Mar 2026 · score V5 · monitor Q4 2025 full
- V4.3 remains retained as the immediate pre-V5 live baseline, while the full shadow comparison stays published for auditability.
- The former V4.3 shadow model remains published as the retained pre-V5 live baseline and promotion trail.
V5 sidecars published
ShadowPublished 21 Mar 2026 · score V5 · monitor Q4 2025 full
- V5 is now the live structural release. The retained V4.3 baseline and promotion-comparison artifacts remain published for auditability.
- Each V5 workstream now ships as an auditable sidecar artifact before any future headline-score change.
V5 model promoted
ShadowPublished 21 Mar 2026 · score V5 · monitor Q4 2025 full
- The V5 structural release is now live, while the transition-adjusted and realized-risk layers remain published as auditable adjunct fields.
- Current validation snapshot: structural 2/2, realized 3/4.
MOM Labour Market Report Q4 2025
Official updatePublished 20 Mar 2026 · score V5 · 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 V5 · 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.