diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index a7f464f471..de9ce220df 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,6 +1,8 @@
 # Release notes #
 
-### Current dev branch (from r1.3.3) ###
+### Current dev branch (from r1.4.0) ###
+
+### r1.4.0 ###
 
 * Support for extracting Matroska streams (implemented by WebmExtractor).
 * Support for tx3g captions in MP4 streams.
diff --git a/demo/src/main/AndroidManifest.xml b/demo/src/main/AndroidManifest.xml
index 8a26c0f0e3..d825df355b 100644
--- a/demo/src/main/AndroidManifest.xml
+++ b/demo/src/main/AndroidManifest.xml
@@ -16,8 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.google.android.exoplayer.demo"
-    android:versionCode="1303"
-    android:versionName="1.3.3"
+    android:versionCode="1400"
+    android:versionName="1.4.0"
     android:theme="@style/RootTheme">
 
   <uses-permission android:name="android.permission.INTERNET"/>
diff --git a/demo_misc/webm_sw_decoder/src/main/AndroidManifest.xml b/demo_misc/webm_sw_decoder/src/main/AndroidManifest.xml
index 65ff6e425d..77da59ed7b 100644
--- a/demo_misc/webm_sw_decoder/src/main/AndroidManifest.xml
+++ b/demo_misc/webm_sw_decoder/src/main/AndroidManifest.xml
@@ -17,8 +17,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer.demo.webm"
-    android:versionCode="1"
-    android:versionName="1.0"
+    android:versionCode="1400"
+    android:versionName="1.4.0"
     android:theme="@style/RootTheme">
 
   <uses-permission android:name="android.permission.INTERNET"/>
diff --git a/library/build.gradle b/library/build.gradle
index dd741703ba..c63edeef99 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -84,7 +84,7 @@ publish {
     userOrg = 'google'
     groupId = 'com.google.android.exoplayer'
     artifactId = 'exoplayer'
-    version = 'r1.3.3'
+    version = 'r1.4.0'
     description = 'The ExoPlayer library.'
     website = 'https://github.com/google/ExoPlayer'
 }
diff --git a/library/src/main/java/com/google/android/exoplayer/ExoPlayerLibraryInfo.java b/library/src/main/java/com/google/android/exoplayer/ExoPlayerLibraryInfo.java
index 6830b3f33b..2b15f7f9f8 100644
--- a/library/src/main/java/com/google/android/exoplayer/ExoPlayerLibraryInfo.java
+++ b/library/src/main/java/com/google/android/exoplayer/ExoPlayerLibraryInfo.java
@@ -26,7 +26,7 @@ public class ExoPlayerLibraryInfo {
   /**
    * The version of the library, expressed as a string.
    */
-  public static final String VERSION = "1.3.3";
+  public static final String VERSION = "1.4.0";
 
   /**
    * The version of the library, expressed as an integer.
@@ -34,7 +34,7 @@ public class ExoPlayerLibraryInfo {
    * Three digits are used for each component of {@link #VERSION}. For example "1.2.3" has the
    * corresponding integer version 001002003.
    */
-  public static final int VERSION_INT = 001003003;
+  public static final int VERSION_INT = 001004000;
 
   /**
    * Whether the library was compiled with {@link com.google.android.exoplayer.util.Assertions}