[CB-5565] Updated version and RELEASENOTES.md for release 0.2.4
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index a6bb1b8..84a9e74 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -45,3 +45,7 @@
 * [CB-4825] avoid retain cycle in update block
 * [CB-4825] use CoreMotion framework for accelerometer
 * [CB-4915] Incremented plugin version on dev branch.
+
+### 0.2.4 (Dec 4, 2013)
+* add ubuntu platform
+* 1. Added amazon-fireos platform. 2. Change to use amazon-fireos as the platform if the user agent string contains 'cordova-amazon-fireos'
diff --git a/plugin.xml b/plugin.xml
index ca82100..a224f49 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -2,7 +2,7 @@
 
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
            id="org.apache.cordova.device-motion"
-      version="0.2.4-dev">
+      version="0.2.4">
 	
     <name>Device Motion</name>
     <description>Cordova Device Motion Plugin</description>