Remove setting from existing libraries with a migration

Jellyfin.Server/Migrations/MigrationRunner.cs

@@ -23,7 +23,8 @@ namespace Jellyfin.Server.Migrations
             typeof(Routines.AddDefaultPluginRepository),
             typeof(Routines.MigrateUserDb),
             typeof(Routines.ReaddDefaultPluginRepository),
-            typeof(Routines.MigrateDisplayPreferencesDb)
+            typeof(Routines.MigrateDisplayPreferencesDb),
+            typeof(Routines.RemoveDownloadImagesInAdvance)
         };
 
         /// <summary>

Jellyfin.Server/Migrations/Routines/RemoveDownloadImagesInAdvance.cs

@@ -0,0 +1,46 @@
+using System;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Migrations.Routines
+{
+    /// <summary>
+    /// Removes the old 'RemoveDownloadImagesInAdvance' from library options.
+    /// </summary>
+    internal class RemoveDownloadImagesInAdvance : IMigrationRoutine
+    {
+        private readonly ILogger<RemoveDownloadImagesInAdvance> _logger;
+        private readonly ILibraryManager _libraryManager;
+
+        public RemoveDownloadImagesInAdvance(ILogger<RemoveDownloadImagesInAdvance> logger, ILibraryManager libraryManager)
+        {
+            _logger = logger;
+            _libraryManager = libraryManager;
+        }
+
+        /// <inheritdoc/>
+        public Guid Id => Guid.Parse("{A81F75E0-8F43-416F-A5E8-516CCAB4D8CC}");
+
+        /// <inheritdoc/>
+        public string Name => "RemoveDownloadImagesInAdvance";
+
+        /// <inheritdoc/>
+        public bool PerformOnNewInstall => false;
+
+        /// <inheritdoc/>
+        public void Perform()
+        {
+            var virtual_folders = _libraryManager.GetVirtualFolders(false);
+            _logger.LogInformation("Removing 'RemoveDownloadImagesInAdvance' settings in all the libraries");
+            foreach (var virtual_folder in virtual_folders)
+            {
+                var library_options = virtual_folder.LibraryOptions;
+                var collectionFolder = (CollectionFolder)_libraryManager.GetItemById(virtual_folder.ItemId);
+                // The property no longer exists in LibraryOptions, so we just re-save the options to get old data removed.
+                collectionFolder.UpdateLibraryOptions(library_options);
+                _logger.LogInformation("Removed from '{VirtualFolder}'", virtual_folder.Name);
+            }
+        }
+    }
+}