babel-preset-proposal-typescript
Yet another Babel preset for TypeScript, only transforms proposals which TypeScript does not support now.
Supply chain provenance
Status for the latest visible version.
Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.
Maintainers
Keywords
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| provenance | publisher-changed | AI (provenance): Publisher change from i1stg to jounqin reflects the same author (JounQin, [email protected]) using a different npm account. jounqin has 612 approved packages and strong track record; this is a legitimate account transition. | ai | |
| phantom-deps | phantom-dep:@bloomberg/record-tuple-polyfill | AI (phantom-deps): Babel presets load plugins by convention/config rather than direct imports; phantom dep findings are expected for this package type. | ai | |
| phantom-deps | phantom-dep:@babel/plugin-proposal-optional-chaining | AI (phantom-deps): Babel presets load plugins by convention/config rather than direct imports; phantom dep findings are expected for this package type. | ai | |
| phantom-deps | phantom-dep:@babel/plugin-proposal-private-property-in-object | AI (phantom-deps): Babel presets load plugins by convention/config rather than direct imports; phantom dep findings are expected for this package type. | ai | |
| provenance | no-provenance | AI (provenance): Established package predating Sigstore provenance; absence is not a risk signal for this package. | ai |
Versions (showing 31 of 31)
| Version | Deps | Published |
|---|---|---|
| 4.0.0 | 20 / 0 | |
| 3.0.0 | 16 / 0 | |
| 2.2.0 | 18 / 0 | |
| 2.1.0 | 19 / 0 | |
| 2.0.3 | 15 / 0 | |
| 2.0.2 | 16 / 0 | |
| 2.0.1 | 16 / 0 | |
| 2.0.0 | 17 / 10 | |
| 1.5.0 | 16 / 11 | |
| 1.4.6 | 16 / 10 | |
| 1.4.5 | 16 / 26 | |
| 1.4.4 | 16 / 26 | |
| 1.4.3 | 16 / 26 | |
| 1.4.2 | 16 / 26 | |
| 1.4.1 | 16 / 27 | |
| 1.4.0 | 16 / 28 | |
| 1.3.0 | 16 / 25 | |
| 1.2.6 | 16 / 21 | |
| 1.2.5 | 16 / 21 | |
| 1.2.4 | 16 / 21 | |
| 1.2.3 | 16 / 22 | |
| 1.2.2 | 16 / 22 | |
| 1.2.1 | 15 / 22 | |
| 1.2.0 | 12 / 25 | |
| 1.1.0 | 12 / 23 | |
| 1.0.0 | 12 / 8 | |
| 0.3.0 | 12 / 8 | |
| 0.2.0 | 11 / 9 | |
| 0.1.0 | 12 / 3 | |
| 0.0.2 | 5 / 3 | |
| 0.0.1 | 4 / 3 |
v4.0.0
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v3.0.0
2 findingsThis version was published by a different npm account than previous versions on 2022-08-21. This could indicate a legitimate maintainer transition or an account compromise.
Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.