React Router is a widely used routing library for React applications due to its API, which simplifies integration. The latest version of React-router (v6) was released in November 2021 and marked a significant API change. Version 5 of React-router was released in March 2019, but it faced some problems with its routing algorithm and configuration defaults. In version 6, React hooks are the driving force behind the new release, resulting in more efficient and compact code.
The article discusses the major problems with version 5, as well as changes to routing logic, bundle size reduction, route protection, and redirection, new features for forms in version 6.4, and also the features that are no longer available in the new version.