Release 0.1.0+4 (#8)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a11b141..884e9c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.0+4
+
+* Support Dart 2.
+
 ## 0.1.0+3
 
 * Support version `0.7.0` of `shelf`.
diff --git a/pubspec.yaml b/pubspec.yaml
index b719d51..2a60d54 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: shelf_proxy
-version: 0.1.1-dev
+version: 0.1.0+4
 author: Dart Team <misc@dartlang.org>
 description: A shelf handler for proxying requests to another server.
 homepage: https://github.com/dart-lang/shelf_proxy