6000.0.72f1
LTS · Released Apr 1, 2026 · Changeset b731fd3ae857 · 0 release notes
60build scorehigher = better
050100
Upgrade risk+33Net cleanup+11Live debt+16
cohort: LTS (307)
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 LTS cohort (307 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 | 30 | 25% | 70 | 17.5 |
| Blocker rate | blockers / total_notes | 0.024 | 0.024 | 36 | 15% | 64 | 9.6 |
| Mobile risk | mobile_known_issues / total_notes | 0.012 | 0.012 | 37 | 10% | 63 | 6.3 |
| Fix density | fixes / total_notes | 0.512 | 0.512 | 29 | 15% | 29 | 4.4 |
| Net-fix delta | ((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes | -0.024 | -0.024 | 43 | 15% | 43 | 6.5 |
| Known-issue debt | known_issues / total_notes | 0.083 | 0.083 | 22 | 20% | 78 | 15.6 |
| Composite | 60 | ||||||
* = 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).