Introducing React-Admin V5

React-admin v5 introduces numerous enhancements and new features aimed at improving both the user and developer experience. Key updates include a theme switcher with a default dark theme, UI improvements like full-width inputs, and more robust form handling. It requires React 18 and has stricter TypeScript integration to catch more errors at compile time. Minimal breaking changes ensure a smooth upgrade process for existing users. The version also eliminates Internet Explorer support and updates several dependencies.