diff --git a/app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor b/app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor
index 97bd672d..88eb9f9c 100644
--- a/app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor	
+++ b/app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor	
@@ -26,7 +26,7 @@
         var availablePreviewFeatures = ConfigurationSelectDataFactory.GetPreviewFeaturesData(this.SettingsManager).ToList();
         if (availablePreviewFeatures.Count > 0)
         {
-            <ConfigurationMultiSelect OptionDescription="@T("Select preview features")" SelectedValues="@(() => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures)" Data="@availablePreviewFeatures" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures = selectedValue)" OptionHelp="@T("Which preview features would you like to enable?")"/>
+            <ConfigurationMultiSelect OptionDescription="@T("Select preview features")" SelectedValues="@(() => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures.Where(x => !x.IsReleased()).ToHashSet())" Data="@availablePreviewFeatures" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures = selectedValue)" OptionHelp="@T("Which preview features would you like to enable?")"/>
         }
     }
 
diff --git a/app/MindWork AI Studio/Settings/ConfigurationSelectDataFactory.cs b/app/MindWork AI Studio/Settings/ConfigurationSelectDataFactory.cs
index 9d066a7a..4e461f9d 100644
--- a/app/MindWork AI Studio/Settings/ConfigurationSelectDataFactory.cs	
+++ b/app/MindWork AI Studio/Settings/ConfigurationSelectDataFactory.cs	
@@ -108,7 +108,7 @@ public static class ConfigurationSelectDataFactory
     
     public static IEnumerable<ConfigurationSelectData<PreviewFeatures>> GetPreviewFeaturesData(SettingsManager settingsManager)
     {
-        foreach (var source in settingsManager.ConfigurationData.App.PreviewVisibility.GetPreviewFeatures())
+        foreach (var source in settingsManager.ConfigurationData.App.PreviewVisibility.GetPreviewFeatures().Where(x => !x.IsReleased()))
             yield return new(source.GetPreviewDescription(), source);
     }
     
diff --git a/app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs b/app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs
index 79972185..e99fef96 100644
--- a/app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs	
+++ b/app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs	
@@ -17,5 +17,26 @@ public static class PreviewFeaturesExtensions
         _ => TB("Unknown preview feature")
     };
     
-    public static bool IsEnabled(this PreviewFeatures feature, SettingsManager settingsManager) => settingsManager.ConfigurationData.App.EnabledPreviewFeatures.Contains(feature);
+    /// <summary>
+    /// Check if the preview feature is released or not.
+    /// </summary>
+    /// <remarks>
+    /// This metadata is necessary because we cannot remove the enum values from the list.
+    /// Otherwise, we could not deserialize old settings files that may contain these values.
+    /// </remarks>
+    /// <param name="feature">The preview feature to check.</param>
+    /// <returns>True when the preview feature is released, false otherwise.</returns>
+    public static bool IsReleased(this PreviewFeatures feature) => feature switch
+    {
+        PreviewFeatures.PRE_READ_PDF_2025 => true,
+        _ => false
+    };
+    
+    public static bool IsEnabled(this PreviewFeatures feature, SettingsManager settingsManager)
+    {
+        if(feature.IsReleased())
+            return true;
+        
+        return settingsManager.ConfigurationData.App.EnabledPreviewFeatures.Contains(feature);
+    }
 }
\ No newline at end of file