{ "name": "mocha", "url": "https://canirequire.com/package/mocha/", "description": "Classic, reliable, trusted test framework for Node.js and the browser", "latest": "12.0.0", "latestPublished": "2026-08-31T15:02:47.521Z", "format": "esm-only", "summary": "mocha@12.0.0 is ESM-only. mocha dropped its CommonJS build in 12.0.0 (August 2026). The last version you can require() on every Node.js version, including 18 and older, is 11.8.0, published Aug 2, 2026. On Node.js 20.19+, 22.12+ and every newer release, require(\"mocha\") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM. mocha@12.0.0 declares engines \"^20.19.0 || >=22.12.0\", so Node.js 18 is outside its supported range regardless of module format.", "esmOnlySince": "12.0.0", "esmOnlySinceDate": "2026-08-31T15:02:47.521Z", "lastCommonJsVersion": "11.8.0", "lastCommonJsDate": "2026-08-02T19:20:36.906Z", "nativeEsmSince": "12.0.0", "types": "definitely-typed", "nodeEngines": "^20.19.0 || >=22.12.0", "deprecated": null, "license": "MIT", "repository": "https://github.com/mochajs/mocha", "weeklyDownloads": 13310953, "runtime": { "verifiedAt": "2026-09-09T15:28:59.491Z", "node": { "18": { "require": false, "import": false, "requireError": "ERR_REQUIRE_ESM", "importError": "ERR_REQUIRE_ESM" }, "20": { "require": true, "import": true, "requireError": null, "importError": null }, "22": { "require": true, "import": true, "requireError": null, "importError": null }, "24": { "require": true, "import": true, "requireError": null, "importError": null }, "26": { "require": true, "import": true, "requireError": null, "importError": null } }, "bun": { "require": true, "import": true, "requireError": null, "importError": null } }, "formatHistory": [ { "version": "12.0.0", "format": "esm-only", "published": "2026-08-31T15:02:47.521Z" }, { "version": "11.8.0", "format": "cjs", "published": "2026-08-02T19:20:36.906Z" }, { "version": "11.7.6", "format": "cjs", "published": "2026-05-21T11:11:59.551Z" }, { "version": "11.7.5", "format": "cjs", "published": "2025-11-05T02:14:05.649Z" }, { "version": "11.7.4", "format": "cjs", "published": "2025-10-01T22:30:33.682Z" }, { "version": "11.7.3", "format": "cjs", "published": "2025-09-30T12:08:49.692Z" }, { "version": "11.7.2", "format": "cjs", "published": "2025-09-01T16:20:43.708Z" }, { "version": "11.7.1", "format": "cjs", "published": "2025-06-24T13:35:20.122Z" }, { "version": "11.7.0", "format": "cjs", "published": "2025-06-18T01:38:34.737Z" }, { "version": "11.6.0", "format": "cjs", "published": "2025-06-09T10:38:02.013Z" }, { "version": "11.5.0", "format": "cjs", "published": "2025-05-23T22:15:31.861Z" }, { "version": "11.4.0", "format": "cjs", "published": "2025-05-19T14:14:11.875Z" }, { "version": "11.3.0", "format": "cjs", "published": "2025-05-16T14:01:41.226Z" }, { "version": "11.2.2", "format": "cjs", "published": "2025-04-10T14:59:36.670Z" }, { "version": "11.2.1", "format": "cjs", "published": "2025-04-10T11:57:19.362Z" }, { "version": "11.2.0", "format": "cjs", "published": "2025-03-17T18:53:55.100Z" }, { "version": "11.1.0", "format": "cjs", "published": "2025-01-02T06:36:37.812Z" }, { "version": "11.0.2", "format": "cjs", "published": "2024-12-09T14:35:20.169Z" }, { "version": "11.0.1", "format": "cjs", "published": "2024-12-02T15:59:58.304Z" }, { "version": "11.0.0", "format": "cjs", "published": "2024-11-11T17:56:22.347Z" }, { "version": "10.8.2", "format": "cjs", "published": "2024-10-30T16:32:22.934Z" }, { "version": "10.8.1", "format": "cjs", "published": "2024-10-29T20:38:09.542Z" }, { "version": "10.8.0", "format": "cjs", "published": "2024-10-29T18:14:57.616Z" }, { "version": "10.7.3", "format": "cjs", "published": "2024-08-09T10:59:49.672Z" }, { "version": "10.7.0", "format": "cjs", "published": "2024-07-20T19:45:56.910Z" }, { "version": "10.6.1", "format": "cjs", "published": "2024-07-20T17:40:58.326Z" }, { "version": "10.6.0", "format": "cjs", "published": "2024-07-02T16:16:24.406Z" }, { "version": "10.5.2", "format": "cjs", "published": "2024-06-26T17:58:08.373Z" }, { "version": "10.5.1", "format": "cjs", "published": "2024-06-25T06:26:03.073Z" }, { "version": "10.5.0", "format": "cjs", "published": "2024-06-24T17:46:18.291Z" }, { "version": "10.4.0", "format": "cjs", "published": "2024-03-26T18:28:33.584Z" }, { "version": "10.3.0", "format": "cjs", "published": "2024-02-08T14:40:39.897Z" }, { "version": "10.2.0", "format": "cjs", "published": "2022-12-11T14:18:56.217Z" }, { "version": "10.1.0", "format": "cjs", "published": "2022-10-15T20:58:49.031Z" }, { "version": "10.0.0", "format": "cjs", "published": "2022-05-01T05:17:56.134Z" }, { "version": "9.2.2", "format": "cjs", "published": "2022-03-11T16:58:49.989Z" }, { "version": "9.2.1", "format": "cjs", "published": "2022-02-19T10:06:59.624Z" }, { "version": "9.2.0", "format": "cjs", "published": "2022-01-24T09:09:22.865Z" }, { "version": "9.1.4", "format": "cjs", "published": "2022-01-14T18:52:09.127Z" }, { "version": "9.1.3", "format": "cjs", "published": "2021-10-15T07:29:32.895Z" }, { "version": "9.1.2", "format": "cjs", "published": "2021-09-25T08:39:20.268Z" }, { "version": "9.1.1", "format": "cjs", "published": "2021-08-28T13:57:06.894Z" }, { "version": "9.1.0", "format": "cjs", "published": "2021-08-20T07:29:11.861Z" }, { "version": "9.0.3", "format": "cjs", "published": "2021-07-25T16:15:51.196Z" }, { "version": "9.0.2", "format": "cjs", "published": "2021-07-03T08:28:04.401Z" }, { "version": "9.0.1", "format": "cjs", "published": "2021-06-18T07:34:17.935Z" }, { "version": "9.0.0", "format": "cjs", "published": "2021-06-07T15:46:55.977Z" }, { "version": "8.4.0", "format": "cjs", "published": "2021-05-07T08:30:36.704Z" }, { "version": "8.3.2", "format": "cjs", "published": "2021-03-12T08:25:17.006Z" }, { "version": "8.3.1", "format": "cjs", "published": "2021-03-06T06:50:18.488Z" }, { "version": "8.3.0", "format": "cjs", "published": "2021-02-11T18:49:06.582Z" }, { "version": "8.2.1", "format": "cjs", "published": "2020-11-02T22:54:27.988Z" }, { "version": "8.2.0", "format": "cjs", "published": "2020-10-16T21:11:31.207Z" }, { "version": "8.1.3", "format": "cjs", "published": "2020-08-28T20:54:48.785Z" }, { "version": "8.1.2", "format": "cjs", "published": "2020-08-25T19:40:41.721Z" }, { "version": "8.1.1", "format": "cjs", "published": "2020-08-04T19:16:16.242Z" }, { "version": "8.1.0", "format": "cjs", "published": "2020-07-30T20:19:05.078Z" }, { "version": "8.0.1", "format": "cjs", "published": "2020-06-10T21:39:54.728Z" }, { "version": "8.0.0", "format": "cjs", "published": "2020-06-10T19:12:11.507Z" }, { "version": "7.2.0", "format": "cjs", "published": "2020-05-23T11:41:32.286Z" } ] }