Runtime evidence / smoke tested

preact11.0.0

Observed 2026-10-05 06:41 UTC · Linux amd64 / glibc

Classified 2026-10-11 04:41 UTC · classifier_v3

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Version summary · Observation 0 · Report history · Maintainer tools (coming soon)

Selected import result

`preact/compat/server`

Requires optional peer

preact@11.0.0 · Node.js 26.10.0 · ESM import

Observed 2026-10-05 06:41 UTC · Linux amd64 / glibc · Sequential subpath batch

0.8022729999999996 ms in the original load · Originally resolved to file:///workspace/node_modules/preact/compat/server.mjs

Requires optional peer: preact-render-to-string
Declared range: >=6.7.0. This dependency was not installed in the tested snapshot. Compatibility for this entry is inconclusive; the loading error does not establish a runtime incompatibility.

optional_peer_missing · module resolution
Cannot find package 'preact-render-to-string' imported from /workspace/node_modules/preact/compat/server.mjs

Provide the declared peer in your application and test the affected feature. This report does not establish that adding it resolves the failure.

Loading success does not establish functional correctness or package safety. This is one entry; the report’s overall coverage and limitations still apply.

All entries and raw logs for this group Back to runtime matrix

Inconclusive

All applicable planned loading observations completed.

This is loading evidence. It does not establish functional correctness or package safety.

Runtime matrix

4 pinned runtimes · production_f10071512e0e7e24c6867f11e90a7da0

Loading outcomes by runtime and consumer mode
Runtime	Root import	Root require	Subpath imports	Subpath requires
Node.js24.21.0	Passed	Passed	Inconclusive12 passed · 2 need optional peers	Inconclusive12 passed · 2 need optional peers
Node.js26.10.0	Passed	Passed	Inconclusive12 passed · 2 need optional peers	Inconclusive12 passed · 2 need optional peers
Bun1.4.2	Passed	Passed	Inconclusive12 passed · 1 failed · 1 batch failure unconfirmed	Inconclusive12 passed · 1 needs an optional peer · 1 batch failure unconfirmed
Deno2.9.7	Passed	Passed	Inconclusive12 passed · 2 need optional peers	Inconclusive12 passed · 2 need optional peers

Node.js 24.21.0

Root importPassed

Root requirePassed

Subpath importsInconclusive12 passed · 2 need optional peers

Subpath requiresInconclusive12 passed · 2 need optional peers

Node.js 26.10.0

Root importPassed

Root requirePassed

Subpath importsInconclusive12 passed · 2 need optional peers

Subpath requiresInconclusive12 passed · 2 need optional peers

Bun 1.4.2

Root importPassed

Root requirePassed

Subpath importsInconclusive12 passed · 1 failed · 1 batch failure unconfirmed

Subpath requiresInconclusive12 passed · 1 needs an optional peer · 1 batch failure unconfirmed

Deno 2.9.7

Root importPassed

Root requirePassed

Subpath importsInconclusive12 passed · 2 need optional peers

Subpath requiresInconclusive12 passed · 2 need optional peers

Import uses ESM; require uses CommonJS. Root modes use fresh sandboxes. Subpath batches share module caches and globals. Select a result to inspect its evidence.

Does preact work in Node.js, Bun and Deno?

All applicable planned loading checks completed. The runtimes used the same installed dependency snapshot. Test environment: Linux amd64 / glibc, with install scripts and execution networking disabled. Successful import or require does not prove that package functions, native features or your application work.

Does preact work with Node.js?

preact@11.0.0 has inconclusive loading evidence in Node.js 24.21.0. 26 passed · 0 failed · 4 need optional peers.

preact@11.0.0 has inconclusive loading evidence in Node.js 26.10.0. 26 passed · 0 failed · 4 need optional peers.

Does preact work with Bun?

preact@11.0.0 has inconclusive loading evidence in Bun 1.4.2. 26 passed · 1 failed · 1 needs an optional peer · 2 batch failures unconfirmed.

Does preact work with Deno?

preact@11.0.0 has inconclusive loading evidence in Deno 2.9.7. 26 passed · 0 failed · 4 need optional peers.

Compare npm package compatibility across Node.js, Bun and Deno · Browse observed runtime loading failures

Shared preparation

Passed

1 installed packages · 0 optional dependencies omitted · lifecycle scripts disabled

The omitted count covers locked optional dependencies. Optional peers are separate and are not automatically installed.

Static manifest, native and script observations

Static indicators are context; their presence alone does not establish a prerequisite or failure.

{
  "native": {
    "count": 0,
    "paths": [],
    "buildIndicators": [],
    "prerequisiteProven": false
  },
  "declared": {
    "main": "dist/preact.mjs",
    "module": "dist/preact.mjs",
    "exports": {
      ".": {
        "types": "./src/index.d.ts",
        "default": "./dist/preact.mjs"
      },
      "./debug": {
        "types": "./debug/src/index.d.ts",
        "default": "./debug/dist/debug.mjs"
      },
      "./hooks": {
        "types": "./hooks/src/index.d.ts",
        "default": "./hooks/dist/hooks.mjs"
      },
      "./compat": {
        "types": "./compat/src/index.d.ts",
        "default": "./compat/dist/compat.mjs"
      },
      "./devtools": {
        "types": "./devtools/src/index.d.ts",
        "default": "./devtools/dist/devtools.mjs"
      },
      "./test-utils": {
        "types": "./test-utils/src/index.d.ts",
        "default": "./test-utils/dist/testUtils.mjs"
      },
      "./jsx-runtime": {
        "types": "./jsx-runtime/src/index.d.ts",
        "default": "./jsx-runtime/dist/jsxRuntime.mjs"
      },
      "./package.json": "./package.json",
      "./compat/client": {
        "types": "./compat/client.d.ts",
        "import": "./compat/client.mjs",
        "require": "./compat/client.js"
      },
      "./compat/server": {
        "types": "./compat/server.d.ts",
        "import": "./compat/server.mjs",
        "browser": "./compat/server.browser.js",
        "require": "./compat/server.js"
      },
      "./jsx-dev-runtime": {
        "types": "./jsx-runtime/src/index.d.ts",
        "default": "./jsx-runtime/dist/jsxRuntime.mjs"
      },
      "./compat/scheduler": {
        "types": "./compat/scheduler.d.ts",
        "import": "./compat/scheduler.mjs",
        "require": "./compat/scheduler.js"
      },
      "./compat/test-utils": {
        "types": "./test-utils/src/index.d.ts",
        "default": "./test-utils/dist/testUtils.mjs"
      },
      "./compat/jsx-runtime": {
        "types": "./jsx-runtime/src/index.d.ts",
        "import": "./compat/jsx-runtime.mjs",
        "require": "./compat/jsx-runtime.js"
      },
      "./debug/package.json": "./debug/package.json",
      "./hooks/package.json": "./hooks/package.json",
      "./compat/package.json": "./compat/package.json",
      "./compat/server.browser": {
        "types": "./compat/server.d.ts",
        "default": "./compat/server.browser.js"
      },
      "./devtools/package.json": "./devtools/package.json",
      "./compat/jsx-dev-runtime": {
        "types": "./jsx-runtime/src/index.d.ts",
        "import": "./compat/jsx-dev-runtime.mjs",
        "require": "./compat/jsx-dev-runtime.js"
      },
      "./test-utils/package.json": "./test-utils/package.json",
      "./jsx-runtime/package.json": "./jsx-runtime/package.json"
    },
    "scripts": {
      "dev": "node ./scripts/build.mjs --watch",
      "tsc": "tsc -p jsconfig-lint.json",
      "lint": "run-s oxlint tsc",
      "test": "npm-run-all build lint test:unit",
      "build": "node ./scripts/build.mjs",
      "format": "oxfmt . --write",
      "oxlint": "oxlint src test/browser test/node test/shared debug compat hooks test-utils",
      "test:ts": "run-p 'test:ts:*'",
      "dev:hooks": "node ./scripts/build.mjs --watch hooks",
      "postbuild": "node ./config/compat-entries.js",
      "test:unit": "run-p test:vitest:min test:ts",
      "dev:compat": "node ./scripts/build.mjs --watch compat",
      "test:vitest": "cross-env COVERAGE=true vitest run",
      "format:check": "oxfmt --check .",
      "test:install": "playwright install chromium",
      "test:ts:core": "tsc -p test/ts/",
      "test:ts:compat": "tsc -p compat/test/ts/",
      "test:vitest:min": "cross-env MINIFY=true vitest run",
      "test:vitest:watch": "vitest"
    },
    "devDependencies": {
      "chai": "^6.2.2",
      "husky": "^9.1.7",
      "oxfmt": "^0.32.0",
      "oxlint": "^1.8.0",
      "rollup": "^4.62.2",
      "terser": "5.16.0",
      "vitest": "^5.0.0",
      "kolorist": "^1.8.0",
      "cross-env": "^7.0.3",
      "playwright": "^1.54.1",
      "prop-types": "^15.8.1",
      "typescript": "5.1.6",
      "@babel/core": "^7.28.0",
      "@types/chai": "^5.2.2",
      "@types/node": "^22.20.1",
      "nano-staged": "^1.0.2",
      "npm-run-all2": "^7.0.0",
      "@vitest/browser": "^5.0.0",
      "@babel/preset-env": "^7.29.7",
      "@vitest/coverage-v8": "^5.0.0",
      "@rollup/plugin-babel": "^6.1.0",
      "preact-render-to-string": "^6.5.0",
      "@vitest/browser-playwright": "^5.0.0",
      "babel-plugin-transform-rename-properties": "0.1.0"
    },
    "peerDependencies": {
      "preact-render-to-string": ">=6.7.0"
    },
    "peerDependenciesMeta": {
      "preact-render-to-string": {
        "optional": true
      }
    }
  },
  "platform": {
    "os": true,
    "cpu": true,
    "libc": true
  },
  "evidenceLevel": "static_only",
  "lifecycleScripts": []
}

Coverage and evidence

Node.js 24.21.0 · Root · ESM importPassed

1 passed · 0 failed · 1 observed of 1 planned

preact11.0.0

Selected import result

preact/compat/server

Runtime matrix

Node.js 24.21.0

Node.js 26.10.0

Bun 1.4.2

Deno 2.9.7

Does preact work in Node.js, Bun and Deno?

Does preact work with Node.js?

Does preact work with Bun?

Does preact work with Deno?

Shared preparation

Coverage and evidence

Non-passing imports

Non-passing imports

Non-passing imports

Non-passing imports

Non-passing imports

Non-passing imports

Non-passing imports

Non-passing imports

Reproduce these inputs

node_24_21_0

node_26_10_0

bun_1_4_2

deno_2_9_7

Evidence limitations

`preact/compat/server`