Recordsnpmreact-dom18.3.1react-dom.createRoot
OS × runtime at a glance
1○ 12026-08-26
Reading a cell: The number is how many recorded observations the rate divides — one build files an observation per stage it reached, so it counts neither builds nor machines nor people. The document beside it is a different fact from a different source: whether a sample exists at that coordinate, and how our own run of it went there.
- no sample at this coordinate yet
- there is a sample here, and nothing of ours has run it at this coordinate yet
- there is a sample here, and our run of it at this coordinate came back clean
- there is a sample here, and our run of it at this coordinate failed
- there is a sample here, and this coordinate records both a passing and a failing run of it
- nothing recorded — unknown, never "works" and never "broken"
- there is a level below this cell — click to open it
A document means there is a sample at that coordinate. Whether one EXISTS is a fact about this release and this API and does not change with OS, runtime or package manager; its COLOUR is how that sample ran in the environment you are looking at.
Published samples
- react-dom 18.3.1: Mount components with react-dom/client createRoot, manage updates, and unmount cleanly This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcreateRootreact-dom/client.createRootnode 22.23.2 MIT-0 · 2026-08-26
- react-dom 18.3.1: createRoot This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWreact-dom.createRootnode 22.23.2 MIT-0 · 2026-08-26
- react-dom 18.3.1: Differentiate React 18 react-dom/server stream controller architecture, renderToString Suspense fallback markup, and Node entrypoint boundary differences This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWreact-dom/server.renderToPipeableStreamreact-dom/server.renderToStringreact-dom/server.renderToNodeStreamreact-dom/client.createRootreact-dom.rendernode MIT-0 · 2026-08-17
- react 18.3.1: Differentiate React development vs production runtime contracts across NODE_ENV branching, jsxDEV stubbing, element immutability, and minified error invariant decoding This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWreact.createElementreact/jsx-dev-runtime.jsxDEVreact/jsx-runtime.jsxreact.useLayoutEffectreact-dom/client.createRootreact-dom/server.renderToStringnode MIT-0 · 2026-08-16
Compatibility matrix
Project-level observations and symbol/contract verifications are counted separately and never combined.
These counts do not distinguish how the symbol was called: overloads, argument shapes and options are pooled together. What a particular call shape does is proven by a sample's contract, not by these numbers.
| Environment | Confidence | Observations | Verified | Pass rate | Peers | Last seen |
|---|---|---|---|---|---|---|
| node 22 · JS · npm · linux musl · docker
Verified: CONTRACT 1✓
|
LOW | 0 | 1 | 100% | 0 · 1✓ | 2026-08-26 |
| node 24.13 · TS · pnpm · windows
Observations: PROJECT_COMPILE 5✓ · PROJECT_TEST 3✓ 2✕
|
LOW | 10 | 0 | 80% | 1 | 2026-08-26 |
| node 24.13 · TS · npm · windows
Observations: PROJECT_COMPILE 2✓ · PROJECT_TEST 4✓ 1✕ · PROJECT_TYPECHECK 2✓ 1✕
|
LOW | 10 | 0 | 80% | 1 | 2026-08-21 |
snapshot · 2026-08-30
Failure clusters
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observed PROJECT_TEST ELIFECYCLE Evidence gap ×7 18.3.1 → 19.2.8 executionContext=node · os=windows react-dom.createRootEvidence quality: legacy-evidence-incomplete · Environment variants: 4 · First recorded: 2026-08-21 · Last seen: 2026-08-26Diagnostic re-verification candidate
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observed PROJECT_PROCESS ERR_ASSERTION Evidence gap ×6 18.3.1 → 19.0.0 → 19.2.8 executionContext=nodeEvidence quality: legacy-evidence-incomplete · Environment variants: 3 · First recorded: 2026-08-18 · Last seen: 2026-08-29Diagnostic re-verification candidate
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observed UNKNOWN exit 1 ERR_MODULE_NOT_FOUND Evidence gap ×3 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:88af852f99a8…node:internal/modules/package_json_reader:<n> · throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null); · ^ …node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29Diagnostic re-verification candidate
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observed UNKNOWN exit 2 Evidence gap ×3 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:fddf8ea09045…Using CPython 3.12.3 interpreter at: <path> · Creating virtual environment at: .venv · error: Failed to create virtual environment …· unclassified-diagnostic · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-30Diagnostic re-verification candidate
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observed PROJECT_TYPECHECK Evidence gap ×2 18.3.1 → 19.2.8 executionContext=node · moduleSystem=cjs · os=windowsEvidence quality: legacy-evidence-incomplete · Environment variants: 2 · First recorded: 2026-08-19 · Last seen: 2026-08-21Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×2 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:9be950af9140…Traceback (most recent call last): · File <str>, line 1, in <module> · ModuleNotFoundError: No module named <str>python3 · unclassified-diagnostic · outer python3 · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-08-30 · Last seen: 2026-08-30Diagnostic re-verification candidate
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observed PROJECT_TYPECHECK Evidence gap ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=windows · runtime=node@24.13 react-dom.createRootEvidence quality: legacy-evidence-incomplete · Environment variants: 1 · First recorded: 2026-08-21 · Last seen: 2026-08-21
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observed PROJECT_PROCESS exit 1 ERR_ASSERTION ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:0e3b7c489c9f…node:internal/modules/run_main:<n> · triggerUncaughtException( · ^ · AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:Evidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29
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observed PROJECT_PROCESS exit 1 ERR_ASSERTION ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:c209875bcbeb…node:internal/modules/run_main:<n> · triggerUncaughtException( · ^ …Evidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29
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observed PROJECT_PROCESS exit 1 ERR_MODULE_NOT_FOUND ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:c33691aec18d…node:internal/modules/package_json_reader:<n> · throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null); · ^ …Evidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29
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observed UNKNOWN exit 1 Evidence gap ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:3226ba56e07f…Traceback (most recent call last): · File <str>, line 45, in <module> · File <str>, line 856, in from_path · with open(path, <str>) as fp:· unclassified-diagnostic · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×1 18.3.1 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:8310a83be884…node:internal/modules/cjs/loader:<n> · const err = new Error(message); · ^ · Error: Cannot find module <str>node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-08-29 · Last seen: 2026-08-29Diagnostic re-verification candidate
Showing the 12 most-reported of 26 recorded failure clusters. The rest are single reports.