CHANGELOG.md in react-rails-2.7.1 vs CHANGELOG.md in react-rails-3.0.0.rc.0

@@ -7,9 +7,18 @@
 ## Unreleased
 Changes since last non-beta release.
 
 _Please add entries here for your pull requests that are not yet released._
 
+### Breaking Changes
+- Requires separate compilations for server & client bundles if using Shakapacker (see [Webpack config](https://github.com/reactjs/react-rails/tree/master/test/dummy/config/webpack)) #1274
+- Replaces WebpackManifestContainer, which searched for assets in the webpack manifest, with SeparateServerBundleContainer, which expects a single server bundle file & does not use the webpack manifest at all. #1274
+- Upgrades React-Rails' embedded react to v18.2.0. Uses node polyfill plugin & fast-text-encoder for SSR text encoding. #1290
+- If using Webpacker/Shakapacker, requires upgrading to Shakapacker v7 #1274 and #1285
+
+#### Changed
+- The `react:component` generator now generates a function component by default #1271
+
 ## [2.7.1] - 2023-05-19
 
 #### Bug Fixes
 - Fix ReactDomClient initialization error during SSR. #1278