Ts-jest is a popular Jest transformer that enables developers to seamlessly test TypeScript projects using Jest. Versions 27.0.2 and 27.0.3 have subtle differences, primarily in their development dependencies. For developers, the core functionality remains consistent: effortlessly executing Jest tests in TypeScript environments with source map support for easier debugging.
A key difference lies in the typescript version specified in devDependencies. Version 27.0.2 uses typescript: ^4.1.2, while version 27.0.3 moves to typescript: ~4.2.4. This indicates a refinement in the development and testing environment, potentially incorporating features or bug fixes present in the newer TypeScript version. Additionally, there may be small variations in internal build processes or dependency resolutions that don't drastically alter the user experience but improve the overall package stability and build process.
Both versions share the same dependencies and peer dependencies, ensuring compatibility with existing Jest setups (jest: ^27.0.0) and TypeScript versions (>=3.8 <5.0). Developers can continue to utilize familiar configuration methods and expect similar performance in their testing workflows. The ts-jest package continues to leverage packages in it's ecosystem such as json5, lodash and semver to deliver a seamless experience. Choosing either version depends on the specific needs of your existing development environment and if staying up to date is important for your team.
The are not vulnerabilities for the version 27.0.3 of the package ts-jest