diff --git a/README.md b/README.md
index 5727a41bd7..2608db11f2 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,13 @@ Open Source Projects Used
 
 Changelog
 ---------
+**version 2.6.4 (released 4/13/2015)**
+- minor fixes for crashes
+- since it seems that the notification crashes happen at random, and only
+after lots of notification traffic, this patch attempts to cut down on
+the notification traffic by remembering the last progress and maximum
+values and only posting the notification if they changed.
+
 **version 2.6.3 (released 4/12/2015)**
 - fix a bug where audio bar was hidden on tablet in landscape
 - persist highlight of ayah between translation and pages
diff --git a/app/build.gradle b/app/build.gradle
index e4ef3d8125..6446fe8c3c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,8 +13,8 @@ android {
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 22
-        versionCode 2630
-        versionName "2.6.3"
+        versionCode 2640
+        versionName "2.6.4"
     }
 
     signingConfigs {