Update the pubspec and add a CHANGELOG entry.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ca35a3..13b41f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.4.0
+
+* Add a `new PriorityQueue()` constructor that forwards to `new
+ HeapPriorityQueue()`.
+
## 1.3.0
* Add `lowerBound` to binary search for values that might not be present.
diff --git a/pubspec.yaml b/pubspec.yaml
index 0679954..a2ca5d6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
name: collection
-version: 1.3.0
+version: 1.4.0-dev
author: Dart Team <misc@dartlang.org>
description: Collections and utilities functions and classes related to collections.
homepage: https://www.github.com/dart-lang/collection
