add changelog and incompatibility error message

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Fixes
 
+- Support `[email protected]` new `sourceMapString` export ([#4004](https://github.com/getsentry/sentry-react-native/pull/4004))
 - `Sentry.captureMessage` stack trace is in `event.exception` (moved from `event.threads`) ([#3635](https://github.com/getsentry/sentry-react-native/pull/3635), [#3988](https://github.com/getsentry/sentry-react-native/pull/3988))
   - To revert to the old behavior (causing the stack to be unsymbolicated) use `useThreadsForMessageStack` option
 

src/js/tools/vendor/metro/utils.ts

@@ -86,7 +86,10 @@ export const createDefaultMetroSerializer = (): MetroSerializer => {
     } else if (typeof (sourceMapString as NewSourceMapStringExport).sourceMapString === 'function') {
       sourceMapStringFunction = (sourceMapString as NewSourceMapStringExport).sourceMapString;
     } else {
-      throw new Error('[@sentry/react-native/metro] Cannot find sourceMapString function in Metro');
+      throw new Error(`
+[@sentry/react-native/metro] Cannot find sourceMapString function in 'metro/src/DeltaBundler/Serializers/sourceMapString'.
+Please check the version of Metro you are using and report the issue at http://www.github.com/getsentry/sentry-react-native/issues
+`);
     }
 
     // Always generate source maps, can't use Sentry without source maps