{
 "metric": "pkg-maintenance",
 "segment": "download_tier-top10m",
 "anchor": "package",
 "label": "top10m+ (packages)",
 "population": "packages in top10m+",
 "states": [
  "active",
  "stale",
  "abandoned"
 ],
 "quiet_failure_states": [
  "abandoned"
 ],
 "measurement": "Bulk registry metadata; last release date. `active` < 365 days, `stale` < 730, **`abandoned`** ≥ 730.",
 "why_it_matters": "A widely-depended-on package with no release in two years is installed everywhere and maintained by nobody — no security fixes are coming, and the dependency graph gives no warning. Being unmaintained is invisible at install time.",
 "limits": "A mature, complete library can be legitimately quiet; release cadence is a proxy for maintenance, not proof of abandonment.",
 "data_tier": "package",
 "population_predicate": "any",
 "entity_type": "package",
 "kind": "failure",
 "latest": {
  "day": "2026-10-01",
  "n": 139,
  "qf_pct": 12.23,
  "ci": [
   7.78,
   18.71
  ],
  "dist": {
   "abandoned": 12.23,
   "stale": 10.07,
   "active": 77.7
  },
  "snapshot": "packages-top400"
 },
 "series": [
  {
   "day": "2026-09-13",
   "n": 100,
   "qf_pct": 15,
   "ci": [
    9.31,
    23.28
   ],
   "dist": {
    "abandoned": 15,
    "stale": 9,
    "active": 76
   },
   "snapshot": "packages-top400"
  },
  {
   "day": "2026-09-14",
   "n": 110,
   "qf_pct": 15.45,
   "ci": [
    9.88,
    23.36
   ],
   "dist": {
    "abandoned": 15.45,
    "stale": 6.36,
    "active": 78.18
   },
   "snapshot": "packages-top400"
  },
  {
   "day": "2026-09-20",
   "n": 121,
   "qf_pct": 13.22,
   "ci": [
    8.31,
    20.4
   ],
   "dist": {
    "abandoned": 13.22,
    "stale": 9.09,
    "active": 77.69
   },
   "snapshot": "packages-top400"
  },
  {
   "day": "2026-09-27",
   "n": 139,
   "qf_pct": 12.23,
   "ci": [
    7.78,
    18.71
   ],
   "dist": {
    "active": 77.7,
    "stale": 10.07,
    "abandoned": 12.23
   },
   "snapshot": "packages-top400"
  },
  {
   "day": "2026-10-01",
   "n": 139,
   "qf_pct": 12.23,
   "ci": [
    7.78,
    18.71
   ],
   "dist": {
    "abandoned": 12.23,
    "stale": 10.07,
    "active": 77.7
   },
   "snapshot": "packages-top400"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/pkg-maintenance/download_tier-top10m"
}