6000.4.9f1
Supported · Released May 27, 2026 · Changeset f7258d6eebbe · 0 release notes
74build scorehigher = better
050100
Upgrade risk+35Net cleanup+24Live debt+16
cohort: Update/Supported (47)
How this number is computed
Composite = sum of sub_score × weight across six metrics. Sub-scores are percentile-rank(log1p(min(raw, p95))) within the Update/Supported cohort (47 releases). Sub-scores for lower-is-better metrics are flipped to 100 − percentile.
| Sub-score | Formula | Raw | Clip | %ile | Weight | Score | Contrib |
|---|---|---|---|---|---|---|---|
| Breaking surface | (breaking_change + api_change) / total_notes | 0 | 0 | 32 | 25% | 68 | 17.0 |
| Blocker rate | blockers / total_notes | 0.078 | 0.078 | 37 | 15% | 63 | 9.4 |
| Mobile risk | mobile_known_issues / total_notes | 0 | 0 | 18 | 10% | 82 | 8.2 |
| Fix density | fixes / total_notes | 0.805* | 0.785 | 97 | 15% | 97 | 14.5 |
| Net-fix delta | ((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes | 0.260 | 0.260 | 65 | 15% | 65 | 9.7 |
| Known-issue debt | known_issues / total_notes | 0.117 | 0.117 | 22 | 20% | 78 | 15.5 |
| Composite | 74 | ||||||
* = raw value was clipped at the cohort 95th percentile to prevent outliers from compressing everyone else's scores. Sub-scores marked "med" substitute the cohort median where the input was missing (e.g. first patch on a minor line has no prior patch for net-fix delta).