Recordsnpmreact19.3.0
Which symbol ran where
Symbols × operating systems for this version. Cells drill into the package's compatibility cube.
| ubuntu glibc | 11 | |
|---|---|---|
| react.useCallback | 85%75 | |
| react.useEffect | 85%75 | |
| react.useRef | 85%75 | |
| react.useState | 85%75 |
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.
Environment detail
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 22.23 · JS · npm · linux glibc
Usage: USED 4✓
|
LOW | 0 +4 | 0 | — | 1 | 2026-09-13 |
| node 22.23 · JS · npm · linux glibc
Usage: USED 3✓
|
LOW | 0 +3 | 0 | — | 1 | 2026-09-11 |
| node 24.13 · TS · npm · windows
Observations: PROJECT_COMPILE 36✓ 9✕ · PROJECT_PROCESS 16✓ · PROJECT_TEST 12✓ 2✕ — Usage: USED 60✓ — Verified: PROCESS_START 0✓ 1✕ · UNKNOWN 0✓ 21✕
|
ELEVATED FAILURE | 75 +60 | 22 | 66% | 1 | 2026-09-14 |
Recent failure clusters
-
observed PROCESS_START process start failed Evidence gap ×3 19.2.8 → 19.3.0 executionContext=node · moduleSystem=esm · os=windows · runtime=node@24.13 react.useEffect sha256:c12549970456…· structured-termination · gap diagnostic-missingEvidence quality: partial · Environment variants: 2 · First recorded: 2026-09-13 · Last seen: 2026-09-16Diagnostic re-verification candidate
Symbols
- react.useCallback 0 of 22 runs passed
- react.useEffect 0 of 22 runs passed
- react.useRef 0 of 22 runs passed
- react.useState 0 of 22 runs passed