diff --git a/NEWS.md b/NEWS.md
index a80713b873b3c80af94c919b1d05a85ec3113d01..3ad162ce1f464ab93226e37652f2c9969b55d6e6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,8 @@
 tag next
 --------------------------------
+
+tag k0.4.2
+--------------------------------
 - ios: support Xcode 7
 - ios: drop support of iOS 5.x
 - ffmpeg: enable libavfilter
diff --git a/README.md b/README.md
index a83115850187ecee343d911b1a7bde1610956e6a..eccd5c56e7e30e9a7743cbfdeda584e52fb256d5 100644
--- a/README.md
+++ b/README.md
@@ -15,13 +15,13 @@ allprojects {
 }
 
 dependencies {
-    compile 'tv.danmaku.ijk.media:ijkplayer-java:0.4.1'
-    compile 'tv.danmaku.ijk.media:ijkplayer-armv7a:0.4.1'
+    compile 'tv.danmaku.ijk.media:ijkplayer-java:0.4.2'
+    compile 'tv.danmaku.ijk.media:ijkplayer-armv7a:0.4.2'
 
     # optional
-    compile 'tv.danmaku.ijk.media:ijkplayer-armv5:0.4.1'
-    compile 'tv.danmaku.ijk.media:ijkplayer-arm64:0.4.1'
-    compile 'tv.danmaku.ijk.media:ijkplayer-x86:0.4.1'
+    compile 'tv.danmaku.ijk.media:ijkplayer-armv5:0.4.2'
+    compile 'tv.danmaku.ijk.media:ijkplayer-arm64:0.4.2'
+    compile 'tv.danmaku.ijk.media:ijkplayer-x86:0.4.2'
 }
 ```
 - iOS
@@ -119,7 +119,7 @@ sudo dpkg-reconfigure dash
 ```
 git clone https://github.com/Bilibili/ijkplayer.git ijkplayer-android
 cd ijkplayer-android
-git checkout -B latest k0.4.1
+git checkout -B latest k0.4.2
 
 ./init-android.sh
 
@@ -159,7 +159,7 @@ cd ..
 ```
 git clone https://github.com/Bilibili/ijkplayer.git ijkplayer-ios
 cd ijkplayer-ios
-git checkout -B latest k0.4.1
+git checkout -B latest k0.4.2
 
 ./init-ios.sh
 
diff --git a/android/ijkplayer/build.gradle b/android/ijkplayer/build.gradle
index 1749a2fd9be366708e88a7e8b5c5871d293fe11d..36b3cddda58b234639da8064d0d83380b73198bc 100644
--- a/android/ijkplayer/build.gradle
+++ b/android/ijkplayer/build.gradle
@@ -26,8 +26,8 @@ ext {
 
     targetSdkVersion = 23
 
-    versionCode = 401001
-    versionName = "0.4.1.1"
+    versionCode = 402000
+    versionName = "0.4.2"
 }
 
 wrapper {
diff --git a/android/ijkplayer/gradle.properties b/android/ijkplayer/gradle.properties
index 7aac5efe0bab0679a8aea4cb75fb66154d701076..71d44aecf266dec9720344308dd5c505b5a80859 100644
--- a/android/ijkplayer/gradle.properties
+++ b/android/ijkplayer/gradle.properties
@@ -17,8 +17,8 @@
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
-VERSION_NAME=0.4.1.1
-VERSION_CODE=401001
+VERSION_NAME=0.4.2
+VERSION_CODE=402000
 GROUP=tv.danmaku.ijk.media
 
 # http://central.sonatype.org/pages/requirements.html
diff --git a/android/ijkplayer/ijkplayer-exo/build.gradle b/android/ijkplayer/ijkplayer-exo/build.gradle
index 599d02f9f6370921b0a3ed742d83c22caa1644bc..e17bcc777bb999f1bb65faeeef0b61251ca6132c 100644
--- a/android/ijkplayer/ijkplayer-exo/build.gradle
+++ b/android/ijkplayer/ijkplayer-exo/build.gradle
@@ -25,7 +25,7 @@ dependencies {
     compile 'com.google.android.exoplayer:exoplayer:r1.5.1'
 
     compile project(':ijkplayer-java')
-    // compile 'tv.danmaku.ijk.media:ijkplayer-java:0.4.1'
+    // compile 'tv.danmaku.ijk.media:ijkplayer-java:0.4.2'
 }
 
 // apply from: '../tools/gradle-mvn-push.gradle'
diff --git a/ios/IJKMediaDemo/IJKMediaDemo/IJKMediaDemo-Info.plist b/ios/IJKMediaDemo/IJKMediaDemo/IJKMediaDemo-Info.plist
index f3299225f541455f7a1d1a544f32325bb0a90de8..dcc8282088ee3d9e9e071c7bd66a081f9c67fcff 100644
--- a/ios/IJKMediaDemo/IJKMediaDemo/IJKMediaDemo-Info.plist
+++ b/ios/IJKMediaDemo/IJKMediaDemo/IJKMediaDemo-Info.plist
@@ -21,11 +21,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.1</string>
+	<string>0.4.2</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>301</string>
+	<string>402</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UIFileSharingEnabled</key>