diff --git a/Assets/Misc/BuildTimestamp.txt b/Assets/Misc/BuildTimestamp.txt
index 811f3ad..9f2bfce 100644
--- a/Assets/Misc/BuildTimestamp.txt
+++ b/Assets/Misc/BuildTimestamp.txt
@@ -1 +1 @@
-637838563151613324
\ No newline at end of file
+637842797115353097
\ No newline at end of file
diff --git a/Assets/Misc/ChangeLog.txt b/Assets/Misc/ChangeLog.txt
index b4323b5..a304558 100644
--- a/Assets/Misc/ChangeLog.txt
+++ b/Assets/Misc/ChangeLog.txt
@@ -1,4 +1,4 @@
-欢迎来到 Arcade-plus 0.4.0(Beta 测试版)！
+欢迎来到 Arcade-plus 0.4.0！
 本次更新的内容有
 
 - Unity 版本更新到 2021.2
@@ -9,4 +9,6 @@
 - 优化了音画同步机制，减少了播放时画面时间的跳变
 - 调整了部分滚动框使用鼠标进行滚动时的滚动速度
 - 修复高帧率下镜头角度随 Arc 位置变化过快的问题
-- 修复谱面错误检查器对跨 Timing 的 Arc 的检测在 Arc 处于 TimingGroup 中时有误的问题
\ No newline at end of file
+- 修复谱面错误检查器对跨 Timing 的 Arc 的检测在 Arc 处于 TimingGroup 中时有误的问题
+- 自动保存和备份的文件名称中的时间改用 24 小时制
+- 为了避免播放时卡顿，正在播放谱面时不再会自动保存
\ No newline at end of file
diff --git a/ProjectSettings/ProjectSettings.asset b/ProjectSettings/ProjectSettings.asset
index b677162..b269cf7 100644
--- a/ProjectSettings/ProjectSettings.asset
+++ b/ProjectSettings/ProjectSettings.asset
@@ -147,7 +147,7 @@ PlayerSettings:
     16:10: 0
     16:9: 1
     Others: 0
-  bundleVersion: 0.4.0-beta.2
+  bundleVersion: 0.4.0
   preloadedAssets:
   - {fileID: 4800000, guid: bb26ede1beb997943a7d6295fbf075d4, type: 3}
   - {fileID: 4800000, guid: 1e340182228616b4ca7dad1e80f4d319, type: 3}