Jest Environment JSDOM version 26.6.0 introduces updates primarily focused on aligning with the core Jest ecosystem's versioning. Upgrading from version 26.5.2 involves ensuring that dependencies like jest-mock, jest-util, @jest/types, @jest/environment, and @jest/fake-timers are also bumped to their corresponding 26.6.0 versions to maintain compatibility and potentially leverage new features or bug fixes within those packages. The core functionality related to emulating a browser environment for testing JavaScript code using JSDOM remains consistent between the two versions; the JSDOM dependency itself stays at ^16.4.0 and the @types/jsdom dev dependency stays at ^16.2.4, which suggests no breaking changes or significant feature additions directly related to the JSDOM environment in this update. Developers adopting jest-environment-jsdom 26.6.0 should prioritize synchronizing their Jest-related dependencies to the 26.6.0 family to guarantee a smooth testing experience and access any improvements incorporated within the broader Jest framework. The release occurred on October 19, 2020 and no changes in tarball size or file count have been observed showing that the changes were minimal.
The are not vulnerabilities for the version 26.6.0 of the package jest-environment-jsdom