Jest Environment JSDOM version 27.0.6 introduces subtle but important updates compared to version 27.0.5. Released on June 28, 2021, it upgrades several core dependencies, primarily within the Jest ecosystem itself. Developers should note the updated versions of jest-mock (from 27.0.3 to 27.0.6), jest-util (from 27.0.2 to 27.0.6), @jest/types (from 27.0.2 to 27.0.6), and @jest/environment and @jest/fake-timers (both from 27.0.5 to 27.0.6).
These dependency bumps likely incorporate bug fixes, performance enhancements, and new features within those respective Jest modules. If you're experiencing issues related to mocking, utility functions, type definitions, or the Jest environment itself with version 27.0.5, upgrading to 27.0.6 could resolve these problems. Given the MIT license, developers have the flexibility to integrate this version freely into their projects. Both versions share the same JSDOM dependency (^16.6.0), file count (4), and unpacked size (7449), meaning no new features that rely on JSDOM engine were introduced. This new stable release aims for more stability of the core jest testing framework and related utilities.
The are not vulnerabilities for the version 27.0.6 of the package jest-environment-jsdom