Change pubspec to be 0.16.0-dev

PiperOrigin-RevId: 239826821
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8c78d6..cfc4165 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## 0.16.0
+
 ## 0.15.8
  * Add return type to some internal methods to improve dart2js output.
  * Change parameter types in some public methods from dynamic (implicit or
diff --git a/pubspec.yaml b/pubspec.yaml
index d811a0b..ebef046 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: intl
-version: 0.15.8
+version: 0.16.0-dev
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/intl
 description: >-