Expect 27.3.1 is a patch release within the 27.x line of the popular assertion library used extensively in Jest testing framework. It builds upon version 27.3.0, incorporating subtle but important updates primarily focused on internal dependencies. For developers already using Expect, upgrading to 27.3.1 brings benefits from updated utility packages.
Specifically, the key changes lie within the dependency updates. jest-get-type sees an upgrade from version 27.0.6 to 27.3.1. jest-message-util and jest-matcher-utils are bumped from 27.3.0 to 27.3.1. The main practical impact of these changes will be under-the-hood improvements and potential bug fixes within the error messages generated by Expect and the matching logic it provides. There are not any API changes.
Additionally, @jest/test-utils gets an upgrade from version 27.3.0 to 27.3.1 in the devDependencies. While this is not a direct dependency impacting runtime behavior, it hints at refinements made to the testing infrastructure of Expect itself, indirectly influencing the library's reliability. The updated release date from October 17th to October 19th indicates recent changes and improvements. The unpacked size has also increased slightly, suggesting minor additions or modifications. Overall, while expect 27.3.1 doesn't introduce groundbreaking new features, its dependency upgrades translates into reliability and improvements for those relying on Expect.
The are not vulnerabilities for the version 27.3.1 of the package expect
