diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 425f1757..6e479c6d 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sdk: [stable, 2.18.2]
+        sdk: [stable, 3.0.0]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e28be01..a7e4fac6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,12 @@ announcements on the StageXL forum or use one of the support links below:
   * StageXL GitHub <https://github.com/bp74/StageXL/issues>
   * StageXL StackOverflow: <http://stackoverflow.com/questions/ask?tags=stagexl>
 
+### 2.2.0
+* Support the latest version of `package:xml`.
+* Update Dart SDK restraint to  ^3.0.0
+* Add drag-drop support to interactive objects. (Pull #360)
+* Add drag-drop support to stage. (Pull #359)
+
 ### 2.1.2
  * Support the latest version of `package:xml`.
  * Update Dart SDK restraint to >= 2.18.0
diff --git a/lib/src/events/event_stream_subscription.dart b/lib/src/events/event_stream_subscription.dart
index 1456b94b..898c6d84 100644
--- a/lib/src/events/event_stream_subscription.dart
+++ b/lib/src/events/event_stream_subscription.dart
@@ -10,7 +10,7 @@ typedef EventListener<T extends Event> = void Function(T event);
 /// used to handle the events. The subscription can also be used to unsubscribe
 /// from the events, or to temporarily pause the events from the stream.
 
-class EventStreamSubscription<T extends Event> extends StreamSubscription<T> {
+class EventStreamSubscription<T extends Event> implements StreamSubscription<T> {
   final int _priority;
   int _pauseCount = 0;
   bool _canceled = false;
diff --git a/pubspec.yaml b/pubspec.yaml
index a38489bf..ad7ef8df 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,16 +1,16 @@
 name: stagexl
-version: 2.1.2
+version: 2.2.0
 description: A fast and universal 2D rendering engine for HTML5 and Dart.
 homepage: http://www.stagexl.org
 repository: https://github.com/bp74/StageXL
 
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '^3.0.0'
 
 documentation: http://www.stagexl.org/docs/api/index.html
 
 dependencies:
-  xml: '>=5.0.0 <7.0.0'
+  xml: '>=6.3.0 <7.0.0'
 
 dev_dependencies:
   build_runner: any