diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d83b2b..e23bdf8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+## 0.13.6
+
+* Adds support for `@viewport`.
+* Adds support for `-webkit-calc()` and `-moz-calc()`.
+* Adds support for querying media features without specifying an expression. For
+  example: `@media (transform-3d) { ... }`.
+* Prevents exception being thrown for invalid dimension terms, and instead
+  issues an error.
+
 ## 0.13.5
 
 * Adds support for `@-moz-document`.
diff --git a/pubspec.yaml b/pubspec.yaml
index 81c97a8..8ed29b6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: csslib
-version: 0.13.5
+version: 0.13.6
 author: Dart Team <misc@dartlang.org>
 description: A library for parsing CSS.
 homepage: https://github.com/dart-lang/csslib