Set dart runtime version with parsed Platform.version

CHANGELOG.md

@@ -13,6 +13,10 @@
   - Time out for app start info retrieval has been reduced to 10s
   - If `autoAppStarts` is `false` and `setAppStartEnd` has not been called, the app start event processor will now return early instead of waiting for `getAppStartInfo` to finish
 
+### Improvements
+
+- Set dart runtime version with parsed `Platform.version` ([#2156](https://github.com/getsentry/sentry-dart/pull/2156))
+
 ## 8.4.0-beta.1
 
 ### Features

dart/lib/src/event_processor/enricher/io_enricher_event_processor.dart

@@ -15,6 +15,21 @@ class IoEnricherEventProcessor implements EnricherEventProcessor {
   IoEnricherEventProcessor(this._options);
 
   final SentryOptions _options;
+  late final String _dartVersion = _extractDartVersion(Platform.version);
+
+  /// Extracts the semantic version and channel from the full version string.
+  ///
+  /// Example:
+  /// Input: "3.5.0-180.3.beta (beta) (Wed Jun 5 15:06:15 2024 +0000) on "android_arm64""
+  /// Output: "3.5.0-180.3.beta (beta)"
+  ///
+  /// Falls back to the full version if the matching fails.
+  String _extractDartVersion(String fullVersion) {
+    RegExp channelRegex = RegExp(r'\((stable|beta|dev)\)');
+    Match? match = channelRegex.firstMatch(fullVersion);
+    // if match is null this will return the full version
+    return fullVersion.substring(0, match?.end);
+  }
 
   @override
   SentryEvent? apply(SentryEvent event, Hint hint) {
@@ -56,6 +71,7 @@ class IoEnricherEventProcessor implements EnricherEventProcessor {
     // like Flutter: https://flutter.dev/docs/testing/build-modes
     final dartRuntime = SentryRuntime(
       name: 'Dart',
+      version: _dartVersion,
       rawDescription: Platform.version,
     );
     if (runtimes == null) {

dart/test/event_processor/enricher/io_enricher_test.dart

@@ -1,6 +1,8 @@
 @TestOn('vm')
 library dart_test;
 
+import 'dart:io';
+
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/event_processor/enricher/io_enricher_event_processor.dart';
 import 'package:test/test.dart';
@@ -25,6 +27,8 @@ void main() {
           .firstWhere((element) => element.name == 'Dart');
       expect(dartRuntime?.name, 'Dart');
       expect(dartRuntime?.rawDescription, isNotNull);
+      expect(dartRuntime!.version.toString(), isNot(Platform.version));
+      expect(Platform.version, contains(dartRuntime.version.toString()));
     });
 
     test('does add to existing runtimes', () {