{
  "answer": {
    "definition": "The latest release is less than 12 months old.",
    "label": "active",
    "sentence": "effect last released 4.0.5 on 2026-10-15."
  },
  "data": {
    "deprecated": false,
    "deprecation_message": "",
    "description": "The missing standard library for TypeScript, for writing production-grade software.",
    "downloads_monthly": 195456274,
    "ecosystem": "npm",
    "first_published_at": "2022-11-23",
    "homepage": "https://effect.website",
    "latest_published_at": "2026-10-15",
    "latest_version": "4.0.5",
    "license": "MIT",
    "maintenance": "active",
    "maintenance_definition": "The latest release is less than 12 months old.",
    "majors": [
      [
        "4",
        "4.0.0",
        "2026-10-01",
        "4.0.5",
        "2026-10-15"
      ],
      [
        "3",
        "3.0.0",
        "2024-04-16",
        "3.22.3",
        "2026-10-16"
      ],
      [
        "2",
        "2.0.0",
        "2024-01-03",
        "2.4.19",
        "2024-04-15"
      ]
    ],
    "median_days_between_majors": 501,
    "median_days_between_releases_24m": 2,
    "name": "effect",
    "release_count_12m": 155,
    "repository_url": "https://github.com/Effect-TS/effect",
    "runtime_requirements": [],
    "supported_runtimes": {},
    "synced_at": "2026-10-19",
    "version_count": 491
  },
  "description": "Keelbench rates how actively effect is maintained on npm and links its latest version to the runtimes it supports. effect last released 4.0.5 on 2026-10-15.",
  "noindex": false,
  "path": "/pkg/npm/effect/",
  "schema": "keelbench.page.v1",
  "title": "effect maintenance and runtime support",
  "type": "pkg-package",
  "updated_at": "2026-10-15",
  "url": "https://keelbench.com/pkg/npm/effect/"
}