diff --git a/main.py b/main.py
index b3c89e54..e130696d 100644
--- a/main.py
+++ b/main.py
@@ -14,7 +14,7 @@
 from src.main_web_UI import WebUI
 
 VERSION = 3.5
-STABLE = False
+STABLE = True
 
 RELEASES = "https://github.com/JoeanAmier/TikTokDownloader/releases/latest"
 NAME = f"TikTokDownloader v{VERSION}{'' if STABLE else ' Beta'}"
@@ -98,11 +98,6 @@ def server():
     app.run(host="0.0.0.0", debug=False)
 
 
-def close_file(files: list | tuple):
-    for f in files:
-        f.close()
-
-
 def change_config(file: Path, tip="修改设置成功！"):
     deal_config(file)
     print(tip)