breaking: release version 9.0.0 of @cypress/react.

BREAKING CHANGE: Cypress 14 drops support for React 16-17. React 18 and up is supported.

Author: AtofStryker

npm/react/README.md

@@ -3,6 +3,11 @@
 Mount React components in the open source [Cypress.io](https://www.cypress.io/) test runner
 
 > **Note:** This package is bundled with the `cypress` package and should not need to be installed separately. See the [React Component Testing Docs](https://docs.cypress.io/guides/component-testing/react/overview) for mounting React components. Installing and importing `mount` from `@cypress/react` should only be done for advanced use-cases.
+
+## Requirements
+
+- React 18.0.0+ (Cypress 13 and under supports React 16 and 17)
+
 ## Development
 
 Run `yarn build` to compile and sync packages to the `cypress` cli package.