diff --git a/app/build.gradle b/app/build.gradle
index f8633f5b7..a92b31d81 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -20,8 +20,8 @@ android {
         applicationId 'net.accelf.yuito'
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 35
-        versionName '3.7.6'
+        versionCode 36
+        versionName '4.0.0-beta.0'
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
 
diff --git a/changelogs/v4.0.0-beta.0/whatsnew-ja-JP b/changelogs/v4.0.0-beta.0/whatsnew-ja-JP
new file mode 100644
index 000000000..d507a516f
--- /dev/null
+++ b/changelogs/v4.0.0-beta.0/whatsnew-ja-JP
@@ -0,0 +1,3 @@
+> これはプレリリースです。Play Store版は公開されません。
+
+* 簡易投稿欄を非表示にするオプションを追加 (#14)