>It may break single sites that were written on naive assumptions; Google Translate and many other libraries break React based sites if they are using refs. I

>It may break single sites that were written on naive assumptions; Google Translate and many other libraries break React based sites if they are using refs. I don't think that point it falls under "written on naive assumptions" https://github.com/facebook/react/issues/11538 https://github.com/facebook/react/issues/11538 the issue says closed but you can easily catch it in various sites and use cases.