6000.0.76f1
LTS · Released May 27, 2026 · Changeset 6f7f9e1c9e8a · 0 release notes
63build scorehigher = better
050100
Upgrade risk+28Net cleanup+23Live debt+12
cohort: LTS (311)
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 (311 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 | 0.091 | 0.091 | 86 | 15% | 14 | 2.1 |
| Mobile risk | mobile_known_issues / total_notes | 0 | 0 | 15 | 10% | 85 | 8.5 |
| Fix density | fixes / total_notes | 0.745 | 0.745 | 86 | 15% | 86 | 12.9 |
| Net-fix delta | ((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes | 0.182 | 0.182 | 68 | 15% | 68 | 10.2 |
| Known-issue debt | known_issues / total_notes | 0.127 | 0.127 | 41 | 20% | 59 | 11.8 |
| Composite | 63 | ||||||
* = 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).