React has actually done a great job of providing clear upgrade paths, assuming you don&#x27;t try to jump several major versions at a time.<p>They generally provide deprecation warnings at least 1 major version before actually breaking&#x2F;removing an existing API. They have also started providing codemod scripts to help migrate a large codebase (though I&#x27;ve found find&#x2F;replace sufficient for a lot of them)<p>My bigger problem has been relying on 3rd party components that hold me back due to some incompatibility they don&#x27;t address for months.