diff --git a/onesignal.php b/onesignal.php
index 08d15e8..5bcb961 100644
--- a/onesignal.php
+++ b/onesignal.php
@@ -6,7 +6,7 @@
  * Plugin Name: OneSignal Push Notifications
  * Plugin URI: https://onesignal.com/
  * Description: Free web push notifications.
- * Version: 3.0.5
+ * Version: 3.0.6
  * Author: OneSignal
  * Author URI: https://onesignal.com
  * License: MIT
diff --git a/readme.txt b/readme.txt
index faf6cbd..585d1f9 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://onesignal.com
 Tags: push notification, push notifications, desktop notifications, mobile notifications, chrome push, android, android notification, android notifications, android push, desktop notification, firefox, firefox push, mobile, mobile notification, notification, notifications, notify, onesignal, push, push messages, safari, safari push, web push, chrome
 Requires at least: 3.8
 Tested up to: 6.7
-Stable tag: 3.0.5
+Stable tag: 3.0.6
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -64,6 +64,10 @@ OneSignal is trusted by over 1.8M+ developers and marketing strategists. We powe
 
 == Changelog ==
 
+= 3.0.6 =
+- Bug fix: prevent caching of old plugin versions
+- Bug fix: guard against Undefined array key "REQUEST_METHOD" error
+
 = 3.0.5 =
 - Change push title and content to match 2.X version
 - Bugfix: handle missing UTM parameters