diff --git a/alpha/Update_English.txt b/alpha/Update_English.txt
index bd73dd7..44dd1e3 100644
--- a/alpha/Update_English.txt
+++ b/alpha/Update_English.txt
@@ -1,10 +1,14 @@
 Release note of v1.3.3 tree
 
  par2j's "lc" option was changed to support more threads.
+ Windows Vista will be removed from supported OS.
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-[ Changes from 1.3.3.2 to 1.3.3.3 ] (2024/06/09)
+[ Changes from 1.3.3.2 to 1.3.3.3 ] (2024/06/15)
+
+Installer update
+ Inno Setup was updated from v6.2.2 to v6.3.1.
 
 PAR2 client update
  Bug fix
diff --git a/alpha/Update_Japanese.txt b/alpha/Update_Japanese.txt
index 1fb1584..2416c5a 100644
--- a/alpha/Update_Japanese.txt
+++ b/alpha/Update_Japanese.txt
@@ -1,6 +1,6 @@
-v1.3.3 の更新情報 (2024/06/09)
+v1.3.3 の更新情報 (2024/06/15)
 
-　まだ動作実験中ですので、不安な人は前のバージョンを使ってください。
+　Windows Vista を動作対象の OS から外す予定です。
 
 [ 1.3.2 から 1.3.3 への変更点 ]