diff --git a/CHANGELOG.md b/CHANGELOG.md
index c209103..ced7b24 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,14 @@
 	OpenSeizureDetector Android App - Change Log
 	============================================
 
-	V2.5.2 - 09 May 2016
+	V2.5.3 - 10sep2017 - Added Pebble App V2.6 which provides better alarm reliability 
+	- no changes to Android App other than first run dialog.
+	
+	V2.5.2 - 09 May 2017
 	Added support for Pebble App V2.5 which includes a multi-ROI mode to improve sensitivity.
 	
 	
-    V2.5.1 - 07 May 2016
+    V2.5.1 - 07 May 2017
 	- Improved alarm annunciation for short duration seizures - setting
 	Latch Alarms will result in alarms sounding for at least Latch Alarm
 	Timer Duration seconds before resetting.
diff --git a/app/app-release-2.5.2.apk b/app/app-release-2.5.2.apk
new file mode 100644
index 0000000..b6a606c
Binary files /dev/null and b/app/app-release-2.5.2.apk differ
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 9e5c4d2..0d9b176 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="uk.org.openseizuredetector"
-    android:versionCode="36"
-    android:versionName="2.5.2">
+    android:versionCode="37"
+    android:versionName="2.5.3">
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
diff --git a/app/src/main/assets/pebble_sd.pbw b/app/src/main/assets/pebble_sd.pbw
index db097bf..2675b03 100644
Binary files a/app/src/main/assets/pebble_sd.pbw and b/app/src/main/assets/pebble_sd.pbw differ
diff --git a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
index 69c8bb6..ac0edff 100644
--- a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
@@ -275,7 +275,7 @@ public class MainActivity extends Activity {
         TextView tv;
         tv = (TextView) findViewById(R.id.versionTv);
         String versionName = mUtil.getAppVersionName();
-        tv.setText("OpenSeizureDetector Server Version " + versionName);
+        tv.setText("OpenSeizureDetector Android App Version " + versionName);
 
         mUtil.writeToSysLogFile("MainActivity.onStart - Binding to Server");
         mUtil.bindToServer(this, mConnection);
diff --git a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
index 7272800..6199435 100644
--- a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
@@ -461,11 +461,8 @@ public class StartupActivity extends Activity {
                             + "http://openseizuredetector.org.uk, or the app Facebook page at https://www.facebook.com/openseizuredetector. "
                             + "so I can get in touch if necessary.\nThank you!  Graham \ngraham@openseizuredetector.org.uk "
                             + "\n\nChanges in this version:"
-                            + "\n- Added an alarm latch automatic reset timer.   This means that if you enable 'Latch Alarms'"
-                            + "\n  in the alarms settings then an alarm will stay active for a period set by the Latch Alarm"
-                            + "\n  Time Duration setting before it re-sets, even if the watch only detects an alarm condition"
-                            + "\n  for a short period.   This is to make sure a carer is alerted to even a short duration alarm"
-                            + "\n  condition.   The alarm can be reset manually by pressing the 'Accept Alarm' button."
+                            + "\n- Upgraded Pebble watch app to V2.6, which improves alarm detection annunciation."
+                            + "\n-  Use the 'Install Watch App' menu option to upgrade the application on the watch."
                 );
             // This makes the links display as links, but they do not respond to clicks for some reason...
             Linkify.addLinks(s, Linkify.ALL);
diff --git a/build.gradle b/build.gradle
index f78cef2..efd8713 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.1'
+        classpath 'com.android.tools.build:gradle:2.3.3'
     }
 }
 allprojects {