Expect version 25.5.0 introduces several notable changes compared to version 25.4.0, primarily focusing on dependency updates within the Jest testing framework ecosystem. Developers upgrading should examine these changes as they may impact their testing environments. A key difference lies in the updated dependencies: @jest/types, jest-message-util, and jest-matcher-utils have all been bumped from version 25.4.0 to 25.5.0. These updates likely contain bug fixes, performance improvements, or new features related to type definitions, message handling in test outputs, and utility functions for custom matchers, respectively.
Another change is the update of @jest/test-utils in the devDependencies, shifting from version 25.3.0 to 25.5.0. This update brings the testing utilities used in expect's development more closely in line with the core Jest framework. While the core functionality of expect remains consistent in providing assertion capabilities, developers who extend expect with custom matchers or rely on specific behaviors of Jest's underlying utilities might need to adjust their code. The unpacked size also sees a slight increase from 2035554 to 2035721, potentially indicating added features or code optimizations. Finally, the release dates show version 25.5.0 was released on April 28, 2020, nine days after version 25.4.0. It is recommended to consult the Jest changelog for comprehensive information on these dependency updates and any breaking changes.
The are not vulnerabilities for the version 25.5.0 of the package expect
