What information do you have regarding <React.StrictMode>?

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<react.strictmode> is a feature in React that helps in highlighting potential problems in the application during its development phase. It performs additional checks and warnings on the app's code and all its child components. These checks are focused on highlighting the potential issues that can lead to unexpected behavior or performance degradation in the app.

When <react.strictmode> is enabled, it helps in identifying common issues like unsafe lifecycles, deprecated APIs, and usage of legacy string ref API, among others. It is particularly helpful when upgrading from legacy code or preparing for newer versions of React.

React.StrictMode is a development tool and is not meant for use in production. It is recommended to enable it only during the development process and disable it for the final build of the app.