diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7737d02e..b82a4ba9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,18 @@
 CHANGELOG
 ======
 
+* v0.5.7: Remove deprecated classes && Add `LaunchAppOperationPlugin` && Add Bluetooth to `VolumeOperationPlugin` && Dev changes
+	* Remove deprecated interfaces / classes
+		* Remove `XmlDataStorageBackend`
+		* Remove `EventType`
+	* New Operation: Launch App (`LaunchAppOperationPlugin`)
+	* Allow to adjust Bluetooth volume in `VolumeOperationPlugin`
+	* Dev changes:
+		* New script to automatically create templates for new `OperationPlugin` (!!)
+		* Remove `StorageData.parse()`
+			* StorageData can not have their fields declared `final` in principle (!)
+		* Remove `DataFactory.emptyData()` && clean up empty constructors
+
 * v0.5.6.1: Switch between 12-hour and 24-hour clocks && Better MediaControlOperationPlugin for Lollipop+ && Update Danish translation && Minor changes
 	* Allow to change between 12-hour and 24-hour clocks in Settings
 	* Use `MediaSessionManager` for Lollipop+ (API 21+) for better media control
diff --git a/app/build.gradle b/app/build.gradle
index 6d638001..6ac80d8b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId 'ryey.easer'
         minSdkVersion 15
         targetSdkVersion 23
-        versionCode 62
-        versionName "0.5.6.1"
+        versionCode 63
+        versionName "0.5.7"
 
         vectorDrawables.useSupportLibrary = true
 
diff --git a/docs/en/FEATURES.md b/docs/en/FEATURES.md
index 09db0f6e..af9239f4 100644
--- a/docs/en/FEATURES.md
+++ b/docs/en/FEATURES.md
@@ -36,6 +36,7 @@ Supported Features
 * Set alarm
 * Change Event status
 * Control volume
+* Launch App
 
 ### Misc
 * Formatting expression (supported in the fields of many Events/Operations)
diff --git a/docs/en/TODO.md b/docs/en/TODO.md
index 6d934944..4c42bf15 100644
--- a/docs/en/TODO.md
+++ b/docs/en/TODO.md
@@ -6,7 +6,6 @@ TODO
 		* Receiving phone calls
 	* Add more Operation (suggestions below)
 		* Location setting
-		* Ringtone volume
 		* Perform phone call
 	* UI
 		* Allow to pick some pre-defined broadcasts or even dynamically search
diff --git a/docs/zh/FEATURES.md b/docs/zh/FEATURES.md
index 222885b4..8c9986f3 100644
--- a/docs/zh/FEATURES.md
+++ b/docs/zh/FEATURES.md
@@ -36,6 +36,7 @@
 * 設定鬧鐘
 * 控制事件狀態
 * 調整音量
+* 啓動程序
 
 ### 雜項
 * 格式化表達式（多數事件和動作的用戶輸入區均支持）
diff --git a/docs/zh/TODO.md b/docs/zh/TODO.md
index 1a90c928..62d5c570 100644
--- a/docs/zh/TODO.md
+++ b/docs/zh/TODO.md
@@ -6,7 +6,6 @@ TODO
 		* 收到來電
 	* 增加更多Operation（以下建議）
 		* 定位
-		* 音量
 		* 撥打電話
 	* UI方面
 		* 允許選擇一些預定的broadcast，甚或動態加載/尋找