We are excited today to introduce Next.js 9.4, featuring:
Fast Refresh is a new hot reloading experience that gives you instantaneous feedback on edits made to your React components. It is now enabled by default for all projects on Next.js 9.4 or newer.
Hot reloading has existed for a long time but has historically been too fragile to enable by default in your workflow. Because of this, Next.js previously implemented a coarse form of hot reloading that would reset the entire state of your application.
The old hot reloading implementation was not resilient to compilation or runtime errors and would perform a full reload of your application if you made a typo while editing your CSS or JavaScript.
This is an excerpt. The full article is published by Next.js Blog.
Continue reading at Next.js Blog