Jest version 26.0.0 represents an incremental update from version 25.5.4, offering refinements and potentially new features to the popular JavaScript testing framework. Both versions share the same core purpose: providing a delightful JavaScript testing experience. Key similarities include the "jest" name and description as well as the MIT license, and the use of the same repository. Delving into the differences, both versions depend on "jest-cli", "@jest/core", and "import-local" albeit at different versions. Version 26.0.0 updates the dependencies of "jest-cli" and "@jest/core" to "^26.0.0" from "^25.5.4". This dependency bump typically indicates bug fixes, performance improvements, or even new features incorporated into those underlying packages.
Examining the "dist" section highlights some interesting changes. Version 26.0.0 showcases a "fileCount" of 6 and an "unpackedSize" of 4341, while version 25.5.4 has a "fileCount" of 7 and an "unpackedSize" of 4776. These discrepancies suggest that the newer version may have undergone some optimization, potentially through code refactoring or removal of unnecessary files, making it slightly leaner than its predecessor. Finally, considering the release dates, version 26.0.0 was released on May 4, 2020, which is approximately 2 days after the version 25.5.4. These changes mean that developers should consider upgrading to version 26.0.0, because it includes all the new features, optimization and bug fixes.
The are not vulnerabilities for the version 26.0.0 of the package jest