Jest Environment JSDOM, a core component for Jest testing, saw a minor version bump from 27.2.4 to 27.2.5 in October 2021. Both versions maintain the same core dependencies, including jsdom (version ^16.6.0) for simulating a browser environment within Node.js, making it possible to test Javascript code that needs a DOM without the need of a browser.
The key difference lies in the version updates of several internal Jest packages. Specifically, jest-mock, jest-util, @jest/types, @jest/environment, and @jest/fake-timers all advanced from version 27.2.4 to 27.2.5. While the specific changes within these packages aren't detailed here, developers should consult the Jest release notes for version 27.2.5 to understand the precise nature of these updates, whether they be bug fixes, performance improvements or feature additions.
For developers, this update signifies a continued commitment to stability and refinement within the Jest ecosystem. The consistent dependency on jsdom indicates a stable foundation for DOM-dependent testing. The updated internal Jest packages likely contain incremental improvements that contribute to a more reliable and efficient testing experience as well as ensure compatibility between jest and all its internal dependencies. Developers already using Jest Environment JSDOM 27.2.4 should consider upgrading to 27.2.5 to benefit from these potential enhancements. New users can be confident that they are building on the newest and most stable foundation.
The are not vulnerabilities for the version 27.2.5 of the package jest-environment-jsdom
