diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60a990f..04929cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 Changelog for zsh-auto-notify
 =============================
 
+0.4.0
+-----
+* Add `AUTO_NOTIFY_EXPIRE_TIME` configuration option
+* Improvements to notification formatting
+* Exit code is now displayed in notifications
+* Notifications on linux now show as critical if long command exits with non-zero exit code
+
 0.3.0
 -----
 * Add support for environments where standard history is disabled. Fixed in #10
diff --git a/auto-notify.plugin.zsh b/auto-notify.plugin.zsh
index 216501f..7487ebf 100644
--- a/auto-notify.plugin.zsh
+++ b/auto-notify.plugin.zsh
@@ -1,4 +1,4 @@
-export AUTO_NOTIFY_VERSION="0.3.0"
+export AUTO_NOTIFY_VERSION="0.4.0"
 
 # Time it takes for a notification to expire
 export AUTO_NOTIFY_EXPIRE_TIME=8000