diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04f883f..4ca35a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
-## 1.2.1
+## 1.3.0
 
-* Add lowerBound to binary search for values that might not be present.
+* Add `lowerBound` to binary search for values that might not be present.
+
+* Verify that the is valid for `CanonicalMap.[]`.
 
 ## 1.2.0
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 3595f9c..0679954 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: collection
-version: 1.2.1-dev
+version: 1.3.0
 author: Dart Team <misc@dartlang.org>
 description: Collections and utilities functions and classes related to collections.
 homepage: https://www.github.com/dart-lang/collection