Highlights This is a summary of the significant changes, both breaking and non-breaking, you need to know about when upgrading from ESLint v8.x to ESLint v9.0.0. Installing Because this is a major release, you may not automatically be upgraded by npm. To ensure you are using this version, run: npm i [email protected] --save-dev Migration Guide As there are a lot of changes, we’ve created a migration guide describing the breaking changes in great detail along with the steps you should take to address ...