created reƶease branch 0.19.0
diff --git a/tutorial/dart/client/pubspec.yaml b/tutorial/dart/client/pubspec.yaml
index 626c8f9..e8c6db8 100644
--- a/tutorial/dart/client/pubspec.yaml
+++ b/tutorial/dart/client/pubspec.yaml
@@ -16,7 +16,7 @@
 # under the License.
 
 name: tutorial_client
-version: 0.19.0
+version: 0.20.0
 description: A Dart client implementation of the Apache Thrift tutorial
 author: Apache Thrift Developers <dev@thrift.apache.org>
 homepage: http://thrift.apache.org