AppVerHook

app/src/main/java/ru/vtosters/lite/hooks/AppVerHook.java

@@ -1,13 +1,15 @@
 package ru.vtosters.lite.hooks;
 
+import static ru.vtosters.lite.utils.Preferences.getBoolValue;
+
 import b.h.g.g.BuildInfo;
 
 public class AppVerHook {
-    public static String appBuild() {
-        return String.valueOf(BuildInfo.i.e());
+    public static int appBuild() {
+        return getBoolValue("useOldAppVer", false) ? 6561 : BuildInfo.i.e();
     }
 
     public static String appVer() {
-        return BuildInfo.i.d(); // 7.26
+        return getBoolValue("useOldAppVer", false) ? "6.18.1" : BuildInfo.i.d();
     }
 }

app/src/main/java/ru/vtosters/lite/ui/fragments/VTSettings.java

@@ -251,7 +251,7 @@ public class VTSettings extends MaterialPreferenceToolbarFragment {
                 return true;
             });
 
-            if (dev()) {
+            if (dev() && isValidSignature()) {
                 addMaterialSwitchPreference(this, "autoupdates", requireContext().getString(R.string.checkupdates), "", R.drawable.ic_camera_switch_outline_24, true, (preference, o) -> {
                     boolean value = (boolean) o;
                     edit().putBoolean("autoupdates", value).commit();