Version Details and Security Vulnerabilities

@storybook/addon-actions version 4.0.4 is a minor patch release following version 4.0.3, both serving as valuable tools for developers using Storybook. These addons are designed to simplify action logging within a Storybook environment, enabling developers to effortlessly track and display triggered events when interacting with components. This immediate feedback loop accelerates the development process and improves overall component testing.

Key differences between the versions lie primarily in their internal dependencies and potentially include bug fixes or minor performance improvements within the @storybook ecosystem itself. While both versions maintain identical file counts (143) and unpacked sizes (278402), version 4.0.4 introduced changes in the dependencies for "@storybook/addons", "@storybook/components", and "@storybook/core-events", all updated from 4.0.3 to 4.0.4. This indicates a coordinated update across core Storybook packages, likely addressing internal compatibilities and stability within the framework.

The core functionality remains consistent: both packages rely on critical dependencies like uuid for unique ID generation, lodash for utility functions, and @emotion/core and @emotion/styled for managing component styling. The inclusion of react-inspector enables detailed inspection of props and data passed during actions, giving developers greater debugging control. Developers should prioritize upgrading to version 4.0.4 ensures they are using the most up-to-date and potentially more stable version of the Storybook action logger.