Replace != null with is not null

61 files changed, 383 insertions, 383 deletions

diff --git a/Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs b/Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs
index 5876c9b4c..985a127d5 100644
--- a/Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs
+++ b/Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs
@@ -131,7 +131,7 @@ namespace Emby.Server.Implementations.AppBase
             {
                 _configuration = value;
 
-                _configurationLoaded = value != null;
+                _configurationLoaded = value is not null;
             }
         }
 
diff --git a/Emby.Server.Implementations/ApplicationHost.cs b/Emby.Server.Implementations/ApplicationHost.cs
index 8e4c13def..5db3748bf 100644
--- a/Emby.Server.Implementations/ApplicationHost.cs
+++ b/Emby.Server.Implementations/ApplicationHost.cs
@@ -196,7 +196,7 @@ namespace Emby.Server.Implementations
         /// <summary>
         /// Gets a value indicating whether this instance can self restart.
         /// </summary>
-        public bool CanSelfRestart => _startupOptions.RestartPath != null;
+        public bool CanSelfRestart => _startupOptions.RestartPath is not null;
 
         public bool CoreStartupHasCompleted { get; private set; }
 
@@ -311,7 +311,7 @@ namespace Emby.Server.Implementations
         public X509Certificate2 Certificate { get; private set; }
 
         /// <inheritdoc/>
-        public bool ListenWithHttps => Certificate != null && ConfigurationManager.GetNetworkConfiguration().EnableHttps;
+        public bool ListenWithHttps => Certificate is not null && ConfigurationManager.GetNetworkConfiguration().EnableHttps;
 
         public string FriendlyName =>
             string.IsNullOrEmpty(ConfigurationManager.Configuration.ServerName)
@@ -403,7 +403,7 @@ namespace Emby.Server.Implementations
             // Convert to list so this isn't executed for each iteration
             var parts = GetExportTypes<T>()
                 .Select(CreateInstanceSafe)
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .Cast<T>()
                 .ToList();
 
@@ -424,7 +424,7 @@ namespace Emby.Server.Implementations
             // Convert to list so this isn't executed for each iteration
             var parts = GetExportTypes<T>()
                 .Select(i => defaultFunc(i))
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .Cast<T>()
                 .ToList();
 
diff --git a/Emby.Server.Implementations/Channels/ChannelManager.cs b/Emby.Server.Implementations/Channels/ChannelManager.cs
index d7eb7e3ac..a961c09e8 100644
--- a/Emby.Server.Implementations/Channels/ChannelManager.cs
+++ b/Emby.Server.Implementations/Channels/ChannelManager.cs
@@ -227,7 +227,7 @@ namespace Emby.Server.Implementations.Channels
                     .ToList();
             }
 
-            if (user != null)
+            if (user is not null)
             {
                 channels = channels.Where(i =>
                 {
@@ -739,7 +739,7 @@ namespace Emby.Server.Implementations.Channels
             query.GroupByPresentationUniqueKey = false;
 
             // null if came from cache
-            if (itemsResult != null)
+            if (itemsResult is not null)
             {
                 var items = itemsResult.Items;
                 var itemsLen = items.Count;
@@ -761,7 +761,7 @@ namespace Emby.Server.Implementations.Channels
                 foreach (var deadId in deadIds)
                 {
                     var deadItem = _libraryManager.GetItemById(deadId);
-                    if (deadItem != null)
+                    if (deadItem is not null)
                     {
                         _libraryManager.DeleteItem(
                             deadItem,
@@ -813,7 +813,7 @@ namespace Emby.Server.Implementations.Channels
                 {
                     await using FileStream jsonStream = AsyncFile.OpenRead(cachePath);
                     var cachedResult = await JsonSerializer.DeserializeAsync<ChannelItemResult>(jsonStream, _jsonOptions, cancellationToken).ConfigureAwait(false);
-                    if (cachedResult != null)
+                    if (cachedResult is not null)
                     {
                         return null;
                     }
@@ -836,7 +836,7 @@ namespace Emby.Server.Implementations.Channels
                     {
                         await using FileStream jsonStream = AsyncFile.OpenRead(cachePath);
                         var cachedResult = await JsonSerializer.DeserializeAsync<ChannelItemResult>(jsonStream, _jsonOptions, cancellationToken).ConfigureAwait(false);
-                        if (cachedResult != null)
+                        if (cachedResult is not null)
                         {
                             return null;
                         }
@@ -1156,7 +1156,7 @@ namespace Emby.Server.Implementations.Channels
             {
                 _libraryManager.CreateItem(item, parentFolder);
 
-                if (info.People != null && info.People.Count > 0)
+                if (info.People is not null && info.People.Count > 0)
                 {
                     _libraryManager.UpdatePeople(item, info.People);
                 }
diff --git a/Emby.Server.Implementations/Collections/CollectionImageProvider.cs b/Emby.Server.Implementations/Collections/CollectionImageProvider.cs
index ca8409402..c31bb4fb9 100644
--- a/Emby.Server.Implementations/Collections/CollectionImageProvider.cs
+++ b/Emby.Server.Implementations/Collections/CollectionImageProvider.cs
@@ -59,7 +59,7 @@ namespace Emby.Server.Implementations.Collections
                     var episode = subItem as Episode;
 
                     var series = episode?.Series;
-                    if (series != null && series.HasImage(ImageType.Primary))
+                    if (series is not null && series.HasImage(ImageType.Primary))
                     {
                         return series;
                     }
@@ -71,7 +71,7 @@ namespace Emby.Server.Implementations.Collections
 
                     var parent = subItem.GetOwner() ?? subItem.GetParent();
 
-                    if (parent != null && parent.HasImage(ImageType.Primary))
+                    if (parent is not null && parent.HasImage(ImageType.Primary))
                     {
                         if (parent is MusicAlbum)
                         {
@@ -81,7 +81,7 @@ namespace Emby.Server.Implementations.Collections
 
                     return null;
                 })
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .GroupBy(x => x!.Id) // We removed the null values
                 .Select(x => x.First())
                 .ToList()!; // Again... the list doesn't contain any null values
diff --git a/Emby.Server.Implementations/Collections/CollectionManager.cs b/Emby.Server.Implementations/Collections/CollectionManager.cs
index 701c7b61d..b53c8ca51 100644
--- a/Emby.Server.Implementations/Collections/CollectionManager.cs
+++ b/Emby.Server.Implementations/Collections/CollectionManager.cs
@@ -81,7 +81,7 @@ namespace Emby.Server.Implementations.Collections
         internal async Task<Folder?> EnsureLibraryFolder(string path, bool createIfNeeded)
         {
             var existingFolder = FindFolders(path).FirstOrDefault();
-            if (existingFolder != null)
+            if (existingFolder is not null)
             {
                 return existingFolder;
             }
@@ -265,7 +265,7 @@ namespace Emby.Server.Implementations.Collections
             {
                 var childItem = _libraryManager.GetItemById(guidId);
 
-                var child = collection.LinkedChildren.FirstOrDefault(i => (i.ItemId.HasValue && i.ItemId.Value.Equals(guidId)) || (childItem != null && string.Equals(childItem.Path, i.Path, StringComparison.OrdinalIgnoreCase)));
+                var child = collection.LinkedChildren.FirstOrDefault(i => (i.ItemId.HasValue && i.ItemId.Value.Equals(guidId)) || (childItem is not null && string.Equals(childItem.Path, i.Path, StringComparison.OrdinalIgnoreCase)));
 
                 if (child is null)
                 {
@@ -275,7 +275,7 @@ namespace Emby.Server.Implementations.Collections
 
                 list.Add(child);
 
-                if (childItem != null)
+                if (childItem is not null)
                 {
                     itemList.Add(childItem);
                 }
diff --git a/Emby.Server.Implementations/Data/BaseSqliteRepository.cs b/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
index 450688491..ff9aa4c2a 100644
--- a/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
+++ b/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
@@ -101,7 +101,7 @@ namespace Emby.Server.Implementations.Data
         protected ManagedConnection GetConnection(bool readOnly = false)
         {
             WriteLock.Wait();
-            if (WriteConnection != null)
+            if (WriteConnection is not null)
             {
                 return new ManagedConnection(WriteConnection, WriteLock);
             }
diff --git a/Emby.Server.Implementations/Data/CleanDatabaseScheduledTask.cs b/Emby.Server.Implementations/Data/CleanDatabaseScheduledTask.cs
index 3de9d6371..4516b89dc 100644
--- a/Emby.Server.Implementations/Data/CleanDatabaseScheduledTask.cs
+++ b/Emby.Server.Implementations/Data/CleanDatabaseScheduledTask.cs
@@ -44,7 +44,7 @@ namespace Emby.Server.Implementations.Data
 
                 var item = _libraryManager.GetItemById(itemId);
 
-                if (item != null)
+                if (item is not null)
                 {
                     _logger.LogInformation("Cleaning item {0} type: {1} path: {2}", item.Name, item.GetType().Name, item.Path ?? string.Empty);
 
diff --git a/Emby.Server.Implementations/Data/SqliteItemRepository.cs b/Emby.Server.Implementations/Data/SqliteItemRepository.cs
index 36fdfc8f2..fa9d7dea2 100644
--- a/Emby.Server.Implementations/Data/SqliteItemRepository.cs
+++ b/Emby.Server.Implementations/Data/SqliteItemRepository.cs
@@ -1146,7 +1146,7 @@ namespace Emby.Server.Implementations.Data
             {
                 var image = ItemImageInfoFromValueString(part);
 
-                if (image != null)
+                if (image is not null)
                 {
                     result[position++] = image;
                 }
@@ -1825,7 +1825,7 @@ namespace Emby.Server.Implementations.Data
             var hasSeries = item as IHasSeries;
             if (hasSeriesFields)
             {
-                if (hasSeries != null)
+                if (hasSeries is not null)
                 {
                     if (reader.TryGetGuid(index, out var seriesId))
                     {
@@ -1938,7 +1938,7 @@ namespace Emby.Server.Implementations.Data
 
             if (HasField(query, ItemFields.SeriesPresentationUniqueKey))
             {
-                if (hasSeries != null)
+                if (hasSeries is not null)
                 {
                     if (reader.TryGetString(index, out var seriesPresentationUniqueKey))
                     {
@@ -2205,7 +2205,7 @@ namespace Emby.Server.Implementations.Data
 
         private bool HasProgramAttributes(InternalItemsQuery query)
         {
-            if (query.ParentType != null && _programExcludeParentTypes.Contains(query.ParentType.Value))
+            if (query.ParentType is not null && _programExcludeParentTypes.Contains(query.ParentType.Value))
             {
                 return false;
             }
@@ -2220,7 +2220,7 @@ namespace Emby.Server.Implementations.Data
 
         private bool HasServiceName(InternalItemsQuery query)
         {
-            if (query.ParentType != null && _programExcludeParentTypes.Contains(query.ParentType.Value))
+            if (query.ParentType is not null && _programExcludeParentTypes.Contains(query.ParentType.Value))
             {
                 return false;
             }
@@ -2235,7 +2235,7 @@ namespace Emby.Server.Implementations.Data
 
         private bool HasStartDate(InternalItemsQuery query)
         {
-            if (query.ParentType != null && _programExcludeParentTypes.Contains(query.ParentType.Value))
+            if (query.ParentType is not null && _programExcludeParentTypes.Contains(query.ParentType.Value))
             {
                 return false;
             }
@@ -2270,7 +2270,7 @@ namespace Emby.Server.Implementations.Data
 
         private bool HasArtistFields(InternalItemsQuery query)
         {
-            if (query.ParentType != null && _artistExcludeParentTypes.Contains(query.ParentType.Value))
+            if (query.ParentType is not null && _artistExcludeParentTypes.Contains(query.ParentType.Value))
             {
                 return false;
             }
@@ -2392,7 +2392,7 @@ namespace Emby.Server.Implementations.Data
                 columns.Add("UserDatas.rating");
             }
 
-            if (query.SimilarTo != null)
+            if (query.SimilarTo is not null)
             {
                 var item = query.SimilarTo;
 
@@ -2681,7 +2681,7 @@ namespace Emby.Server.Implementations.Data
                     foreach (var row in statement.ExecuteQuery())
                     {
                         var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
-                        if (item != null)
+                        if (item is not null)
                         {
                             items.Add(item);
                         }
@@ -2923,7 +2923,7 @@ namespace Emby.Server.Implementations.Data
                                 foreach (var row in statement.ExecuteQuery())
                                 {
                                     var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
-                                    if (item != null)
+                                    if (item is not null)
                                     {
                                         list.Add(item);
                                     }
@@ -2966,7 +2966,7 @@ namespace Emby.Server.Implementations.Data
         private string GetOrderByText(InternalItemsQuery query)
         {
             var orderBy = query.OrderBy;
-            bool hasSimilar = query.SimilarTo != null;
+            bool hasSimilar = query.SimilarTo is not null;
             bool hasSearch = !string.IsNullOrEmpty(query.SearchTerm);
 
             if (hasSimilar || hasSearch)
@@ -3396,7 +3396,7 @@ namespace Emby.Server.Implementations.Data
                 }
             }
 
-            if (query.SimilarTo != null && query.MinSimilarityScore > 0)
+            if (query.SimilarTo is not null && query.MinSimilarityScore > 0)
             {
                 whereClauses.Add("SimilarityScore > " + (query.MinSimilarityScore - 1).ToString(CultureInfo.InvariantCulture));
             }
@@ -3683,7 +3683,7 @@ namespace Emby.Server.Implementations.Data
                         .Append(paramName)
                         .Append("))) OR ");
 
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         query.PersonIds[i].TryWriteBytes(idBytes);
                         statement.TryBind(paramName, idBytes);
@@ -3734,7 +3734,7 @@ namespace Emby.Server.Implementations.Data
             if (!string.IsNullOrWhiteSpace(nameContains))
             {
                 whereClauses.Add("(CleanName like @NameContains or OriginalTitle like @NameContains)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     nameContains = FixUnicodeChars(nameContains);
 
@@ -3865,7 +3865,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@ArtistIds" + index;
 
                     clauses.Add("(guid in (select itemid from ItemValues where CleanValue = (select CleanName from TypedBaseItems where guid=" + paramName + ") and Type<=1))");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, artistId);
                     }
@@ -3886,7 +3886,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@ArtistIds" + index;
 
                     clauses.Add("(guid in (select itemid from ItemValues where CleanValue = (select CleanName from TypedBaseItems where guid=" + paramName + ") and Type=1))");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, artistId);
                     }
@@ -3907,7 +3907,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@ArtistIds" + index;
 
                     clauses.Add("((select CleanName from TypedBaseItems where guid=" + paramName + ") in (select CleanValue from ItemValues where ItemId=Guid and Type=0) AND (select CleanName from TypedBaseItems where guid=" + paramName + ") not in (select CleanValue from ItemValues where ItemId=Guid and Type=1))");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, artistId);
                     }
@@ -3928,7 +3928,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@AlbumIds" + index;
 
                     clauses.Add("Album in (select Name from typedbaseitems where guid=" + paramName + ")");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, albumId);
                     }
@@ -3949,7 +3949,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@ExcludeArtistId" + index;
 
                     clauses.Add("(guid not in (select itemid from ItemValues where CleanValue = (select CleanName from TypedBaseItems where guid=" + paramName + ") and Type<=1))");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, artistId);
                     }
@@ -3970,7 +3970,7 @@ namespace Emby.Server.Implementations.Data
                     var paramName = "@GenreId" + index;
 
                     clauses.Add("(guid in (select itemid from ItemValues where CleanValue = (select CleanName from TypedBaseItems where guid=" + paramName + ") and Type=2))");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, genreId);
                     }
@@ -3989,7 +3989,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var item in query.Genres)
                 {
                     clauses.Add("@Genre" + index + " in (select CleanValue from ItemValues where ItemId=Guid and Type=2)");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@Genre" + index, GetCleanValue(item));
                     }
@@ -4008,7 +4008,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var item in tags)
                 {
                     clauses.Add("@Tag" + index + " in (select CleanValue from ItemValues where ItemId=Guid and Type=4)");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@Tag" + index, GetCleanValue(item));
                     }
@@ -4027,7 +4027,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var item in excludeTags)
                 {
                     clauses.Add("@ExcludeTag" + index + " not in (select CleanValue from ItemValues where ItemId=Guid and Type=4)");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@ExcludeTag" + index, GetCleanValue(item));
                     }
@@ -4049,7 +4049,7 @@ namespace Emby.Server.Implementations.Data
 
                     clauses.Add("(guid in (select itemid from ItemValues where CleanValue = (select CleanName from TypedBaseItems where guid=" + paramName + ") and Type=3))");
 
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, studioId);
                     }
@@ -4068,7 +4068,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var item in query.OfficialRatings)
                 {
                     clauses.Add("OfficialRating=@OfficialRating" + index);
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@OfficialRating" + index, item);
                     }
@@ -4083,7 +4083,7 @@ namespace Emby.Server.Implementations.Data
             if (query.MinParentalRating.HasValue)
             {
                 whereClauses.Add("InheritedParentalRatingValue>=@MinParentalRating");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@MinParentalRating", query.MinParentalRating.Value);
                 }
@@ -4092,7 +4092,7 @@ namespace Emby.Server.Implementations.Data
             if (query.MaxParentalRating.HasValue)
             {
                 whereClauses.Add("InheritedParentalRatingValue<=@MaxParentalRating");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@MaxParentalRating", query.MaxParentalRating.Value);
                 }
@@ -4149,7 +4149,7 @@ namespace Emby.Server.Implementations.Data
             if (!string.IsNullOrWhiteSpace(query.HasNoAudioTrackWithLanguage))
             {
                 whereClauses.Add("((select language from MediaStreams where MediaStreams.ItemId=A.Guid and MediaStreams.StreamType='Audio' and MediaStreams.Language=@HasNoAudioTrackWithLanguage limit 1) is null)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@HasNoAudioTrackWithLanguage", query.HasNoAudioTrackWithLanguage);
                 }
@@ -4158,7 +4158,7 @@ namespace Emby.Server.Implementations.Data
             if (!string.IsNullOrWhiteSpace(query.HasNoInternalSubtitleTrackWithLanguage))
             {
                 whereClauses.Add("((select language from MediaStreams where MediaStreams.ItemId=A.Guid and MediaStreams.StreamType='Subtitle' and MediaStreams.IsExternal=0 and MediaStreams.Language=@HasNoInternalSubtitleTrackWithLanguage limit 1) is null)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@HasNoInternalSubtitleTrackWithLanguage", query.HasNoInternalSubtitleTrackWithLanguage);
                 }
@@ -4167,7 +4167,7 @@ namespace Emby.Server.Implementations.Data
             if (!string.IsNullOrWhiteSpace(query.HasNoExternalSubtitleTrackWithLanguage))
             {
                 whereClauses.Add("((select language from MediaStreams where MediaStreams.ItemId=A.Guid and MediaStreams.StreamType='Subtitle' and MediaStreams.IsExternal=1 and MediaStreams.Language=@HasNoExternalSubtitleTrackWithLanguage limit 1) is null)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@HasNoExternalSubtitleTrackWithLanguage", query.HasNoExternalSubtitleTrackWithLanguage);
                 }
@@ -4176,7 +4176,7 @@ namespace Emby.Server.Implementations.Data
             if (!string.IsNullOrWhiteSpace(query.HasNoSubtitleTrackWithLanguage))
             {
                 whereClauses.Add("((select language from MediaStreams where MediaStreams.ItemId=A.Guid and MediaStreams.StreamType='Subtitle' and MediaStreams.Language=@HasNoSubtitleTrackWithLanguage limit 1) is null)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@HasNoSubtitleTrackWithLanguage", query.HasNoSubtitleTrackWithLanguage);
                 }
@@ -4229,7 +4229,7 @@ namespace Emby.Server.Implementations.Data
             if (query.Years.Length == 1)
             {
                 whereClauses.Add("ProductionYear=@Years");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@Years", query.Years[0].ToString(CultureInfo.InvariantCulture));
                 }
@@ -4245,7 +4245,7 @@ namespace Emby.Server.Implementations.Data
             if (isVirtualItem.HasValue)
             {
                 whereClauses.Add("IsVirtualItem=@IsVirtualItem");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@IsVirtualItem", isVirtualItem.Value);
                 }
@@ -4279,7 +4279,7 @@ namespace Emby.Server.Implementations.Data
             if (queryMediaTypes.Length == 1)
             {
                 whereClauses.Add("MediaType=@MediaTypes");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@MediaTypes", queryMediaTypes[0]);
                 }
@@ -4299,7 +4299,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var id in query.ItemIds)
                 {
                     includeIds.Add("Guid = @IncludeId" + index);
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@IncludeId" + index, id);
                     }
@@ -4318,7 +4318,7 @@ namespace Emby.Server.Implementations.Data
                 foreach (var id in query.ExcludeItemIds)
                 {
                     excludeIds.Add("Guid <> @ExcludeId" + index);
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind("@ExcludeId" + index, id);
                     }
@@ -4329,7 +4329,7 @@ namespace Emby.Server.Implementations.Data
                 whereClauses.Add(string.Join(" AND ", excludeIds));
             }
 
-            if (query.ExcludeProviderIds != null && query.ExcludeProviderIds.Count > 0)
+            if (query.ExcludeProviderIds is not null && query.ExcludeProviderIds.Count > 0)
             {
                 var excludeIds = new List<string>();
 
@@ -4343,7 +4343,7 @@ namespace Emby.Server.Implementations.Data
 
                     var paramName = "@ExcludeProviderId" + index;
                     excludeIds.Add("(ProviderIds is null or ProviderIds not like " + paramName + ")");
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, "%" + pair.Key + "=" + pair.Value + "%");
                     }
@@ -4359,7 +4359,7 @@ namespace Emby.Server.Implementations.Data
                 }
             }
 
-            if (query.HasAnyProviderId != null && query.HasAnyProviderId.Count > 0)
+            if (query.HasAnyProviderId is not null && query.HasAnyProviderId.Count > 0)
             {
                 var hasProviderIds = new List<string>();
 
@@ -4386,7 +4386,7 @@ namespace Emby.Server.Implementations.Data
                     hasProviderIds.Add("ProviderIds like " + paramName);
 
                     // this replaces the placeholder with a value, here: %key=val%
-                    if (statement != null)
+                    if (statement is not null)
                     {
                         statement.TryBind(paramName, "%" + pair.Key + "=" + pair.Value + "%");
                     }
@@ -4468,7 +4468,7 @@ namespace Emby.Server.Implementations.Data
             {
                 whereClauses.Add("Guid in (select itemId from AncestorIds where AncestorId=@AncestorId)");
 
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@AncestorId", query.AncestorIds[0]);
                 }
@@ -4484,7 +4484,7 @@ namespace Emby.Server.Implementations.Data
             {
                 var inClause = "select guid from TypedBaseItems where PresentationUniqueKey=@AncestorWithPresentationUniqueKey";
                 whereClauses.Add(string.Format(CultureInfo.InvariantCulture, "Guid in (select itemId from AncestorIds where AncestorId in ({0}))", inClause));
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@AncestorWithPresentationUniqueKey", query.AncestorWithPresentationUniqueKey);
                 }
@@ -4494,7 +4494,7 @@ namespace Emby.Server.Implementations.Data
             {
                 whereClauses.Add("SeriesPresentationUniqueKey=@SeriesPresentationUniqueKey");
 
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@SeriesPresentationUniqueKey", query.SeriesPresentationUniqueKey);
                 }
@@ -4503,7 +4503,7 @@ namespace Emby.Server.Implementations.Data
             if (query.BlockUnratedItems.Length == 1)
             {
                 whereClauses.Add("(InheritedParentalRatingValue > 0 or UnratedType <> @UnratedType)");
-                if (statement != null)
+                if (statement is not null)
                 {
                     statement.TryBind("@UnratedType", query.BlockUnratedItems[0].ToString());
                 }
@@ -4916,7 +4916,7 @@ where AncestorIdText not null and ItemValues.Value not null and ItemValues.Type
         {
             var whereClauses = new List<string>();
 
-            if (query.User != null && query.IsFavorite.HasValue)
+            if (query.User is not null && query.IsFavorite.HasValue)
             {
                 whereClauses.Add(@"p.Name IN (
 SELECT Name FROM TypedBaseItems WHERE UserDataKey IN (
@@ -5293,7 +5293,7 @@ AND Type = @InternalPersonType)");
                 .Append(" group by PresentationUniqueKey");
 
             if (query.OrderBy.Count != 0
-                || query.SimilarTo != null
+                || query.SimilarTo is not null
                 || !string.IsNullOrEmpty(query.SearchTerm))
             {
                 stringBuilder.Append(GetOrderByText(query));
@@ -5361,7 +5361,7 @@ AND Type = @InternalPersonType)");
                                     statement.TryBind("@UserId", query.User.InternalId);
                                 }
 
-                                if (typeSubQuery != null)
+                                if (typeSubQuery is not null)
                                 {
                                     GetWhereClauses(typeSubQuery, null);
                                 }
@@ -5382,7 +5382,7 @@ AND Type = @InternalPersonType)");
                                 foreach (var row in statement.ExecuteQuery())
                                 {
                                     var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
-                                    if (item != null)
+                                    if (item is not null)
                                     {
                                         var countStartColumn = columns.Count - 1;
 
@@ -5402,7 +5402,7 @@ AND Type = @InternalPersonType)");
                                     statement.TryBind("@UserId", query.User.InternalId);
                                 }
 
-                                if (typeSubQuery != null)
+                                if (typeSubQuery is not null)
                                 {
                                     GetWhereClauses(typeSubQuery, null);
                                 }
diff --git a/Emby.Server.Implementations/Data/TypeMapper.cs b/Emby.Server.Implementations/Data/TypeMapper.cs
index 064664e1f..4202915ec 100644
--- a/Emby.Server.Implementations/Data/TypeMapper.cs
+++ b/Emby.Server.Implementations/Data/TypeMapper.cs
@@ -30,7 +30,7 @@ namespace Emby.Server.Implementations.Data
 
             return _typeMap.GetOrAdd(typeName, k => AppDomain.CurrentDomain.GetAssemblies()
                 .Select(a => a.GetType(k))
-                .FirstOrDefault(t => t != null));
+                .FirstOrDefault(t => t is not null));
         }
     }
 }
diff --git a/Emby.Server.Implementations/Dto/DtoService.cs b/Emby.Server.Implementations/Dto/DtoService.cs
index e0e3366b4..0c6c31982 100644
--- a/Emby.Server.Implementations/Dto/DtoService.cs
+++ b/Emby.Server.Implementations/Dto/DtoService.cs
@@ -213,7 +213,7 @@ namespace Emby.Server.Implementations.Dto
                 dto.DisplayPreferencesId = item.DisplayPreferencesId.ToString("N", CultureInfo.InvariantCulture);
             }
 
-            if (user != null)
+            if (user is not null)
             {
                 AttachUserSpecificInfo(dto, item, user, options);
             }
@@ -254,7 +254,7 @@ namespace Emby.Server.Implementations.Dto
 
             var liveTvManager = LivetvManager;
             var activeRecording = liveTvManager.GetActiveRecordingInfo(item.Path);
-            if (activeRecording != null)
+            if (activeRecording is not null)
             {
                 dto.Type = BaseItemKind.Recording;
                 dto.CanDownload = false;
@@ -317,7 +317,7 @@ namespace Emby.Server.Implementations.Dto
         {
             var dto = GetBaseItemDtoInternal(item, options, user);
 
-            if (taggedItems != null && options.ContainsField(ItemFields.ItemCounts))
+            if (taggedItems is not null && options.ContainsField(ItemFields.ItemCounts))
             {
                 SetItemByNameInfo(item, dto, taggedItems);
             }
@@ -417,7 +417,7 @@ namespace Emby.Server.Implementations.Dto
 
             if (options.ContainsField(ItemFields.BasicSyncInfo))
             {
-                var userCanSync = user != null && user.HasPermission(PermissionKind.EnableContentDownloading);
+                var userCanSync = user is not null && user.HasPermission(PermissionKind.EnableContentDownloading);
                 if (userCanSync && item.SupportsExternalTransfer)
                 {
                     dto.SupportsSync = true;
@@ -460,7 +460,7 @@ namespace Emby.Server.Implementations.Dto
 
             var album = item.AlbumEntity;
 
-            if (album != null)
+            if (album is not null)
             {
                 dto.Album = album.Name;
                 dto.AlbumId = album.Id;
@@ -491,7 +491,7 @@ namespace Emby.Server.Implementations.Dto
         {
             return images
                 .Select(p => GetImageCacheTag(item, p))
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .ToArray();
         }
 
@@ -570,7 +570,7 @@ namespace Emby.Server.Implementations.Dto
                         _logger.LogError(ex, "Error getting person {Name}", c);
                         return null;
                     }
-                }).Where(i => i != null)
+                }).Where(i => i is not null)
                 .Where(i => user is null ?
                     true :
                     i.IsVisible(user))
@@ -593,13 +593,13 @@ namespace Emby.Server.Implementations.Dto
                 {
                     baseItemPerson.PrimaryImageTag = GetTagAndFillBlurhash(dto, entity, ImageType.Primary);
                     baseItemPerson.Id = entity.Id;
-                    if (dto.ImageBlurHashes != null)
+                    if (dto.ImageBlurHashes is not null)
                     {
                         // Only add BlurHash for the person's image.
                         baseItemPerson.ImageBlurHashes = new Dictionary<ImageType, Dictionary<string, string>>();
                         foreach (var (imageType, blurHash) in dto.ImageBlurHashes)
                         {
-                            if (blurHash != null)
+                            if (blurHash is not null)
                             {
                                 baseItemPerson.ImageBlurHashes[imageType] = new Dictionary<string, string>();
                                 foreach (var (imageId, blurHashValue) in blurHash)
@@ -662,7 +662,7 @@ namespace Emby.Server.Implementations.Dto
         private string GetTagAndFillBlurhash(BaseItemDto dto, BaseItem item, ImageType imageType, int imageIndex = 0)
         {
             var image = item.GetImageInfo(imageType, imageIndex);
-            if (image != null)
+            if (image is not null)
             {
                 return GetTagAndFillBlurhash(dto, item, image);
             }
@@ -782,7 +782,7 @@ namespace Emby.Server.Implementations.Dto
                     {
                         var tag = GetTagAndFillBlurhash(dto, item, image);
 
-                        if (tag != null)
+                        if (tag is not null)
                         {
                             dto.ImageTags[image.Type] = tag;
                         }
@@ -917,7 +917,7 @@ namespace Emby.Server.Implementations.Dto
 
                 var albumParent = audio.AlbumEntity;
 
-                if (albumParent != null)
+                if (albumParent is not null)
                 {
                     dto.AlbumId = albumParent.Id;
                     dto.AlbumPrimaryImageTag = GetTagAndFillBlurhash(dto, albumParent, ImageType.Primary);
@@ -967,7 +967,7 @@ namespace Emby.Server.Implementations.Dto
                         {
                             EnableImages = false
                         });
-                        if (artist != null)
+                        if (artist is not null)
                         {
                             return new NameGuidPair
                             {
@@ -977,7 +977,7 @@ namespace Emby.Server.Implementations.Dto
                         }
 
                         return null;
-                    }).Where(i => i != null).ToArray();
+                    }).Where(i => i is not null).ToArray();
             }
 
             if (item is IHasAlbumArtist hasAlbumArtist)
@@ -1016,7 +1016,7 @@ namespace Emby.Server.Implementations.Dto
                         {
                             EnableImages = false
                         });
-                        if (artist != null)
+                        if (artist is not null)
                         {
                             return new NameGuidPair
                             {
@@ -1026,7 +1026,7 @@ namespace Emby.Server.Implementations.Dto
                         }
 
                         return null;
-                    }).Where(i => i != null).ToArray();
+                    }).Where(i => i is not null).ToArray();
             }
 
             // Add video info
@@ -1073,7 +1073,7 @@ namespace Emby.Server.Implementations.Dto
                 {
                     MediaStream[] mediaStreams;
 
-                    if (dto.MediaSources != null && dto.MediaSources.Length > 0)
+                    if (dto.MediaSources is not null && dto.MediaSources.Length > 0)
                     {
                         if (item.SourceType == SourceType.Channel)
                         {
@@ -1140,7 +1140,7 @@ namespace Emby.Server.Implementations.Dto
                 // if (options.ContainsField(ItemFields.SeriesPrimaryImage))
                 {
                     episodeSeries ??= episode.Series;
-                    if (episodeSeries != null)
+                    if (episodeSeries is not null)
                     {
                         dto.SeriesPrimaryImageTag = GetTagAndFillBlurhash(dto, episodeSeries, ImageType.Primary);
                         if (dto.ImageTags is null || !dto.ImageTags.ContainsKey(ImageType.Primary))
@@ -1153,7 +1153,7 @@ namespace Emby.Server.Implementations.Dto
                 if (options.ContainsField(ItemFields.SeriesStudio))
                 {
                     episodeSeries ??= episode.Series;
-                    if (episodeSeries != null)
+                    if (episodeSeries is not null)
                     {
                         dto.SeriesStudio = episodeSeries.Studios.FirstOrDefault();
                     }
@@ -1179,7 +1179,7 @@ namespace Emby.Server.Implementations.Dto
                 if (options.ContainsField(ItemFields.SeriesStudio))
                 {
                     series ??= season.Series;
-                    if (series != null)
+                    if (series is not null)
                     {
                         dto.SeriesStudio = series.Studios.FirstOrDefault();
                     }
@@ -1190,7 +1190,7 @@ namespace Emby.Server.Implementations.Dto
                 // if (options.ContainsField(ItemFields.SeriesPrimaryImage))
                 {
                     series ??= season.Series;
-                    if (series != null)
+                    if (series is not null)
                     {
                         dto.SeriesPrimaryImageTag = GetTagAndFillBlurhash(dto, series, ImageType.Primary);
                         if (dto.ImageTags is null || !dto.ImageTags.ContainsKey(ImageType.Primary))
@@ -1256,7 +1256,7 @@ namespace Emby.Server.Implementations.Dto
             if (item.SourceType == SourceType.Channel)
             {
                 var channel = _libraryManager.GetItemById(item.ChannelId);
-                if (channel != null)
+                if (channel is not null)
                 {
                     dto.ChannelName = channel.Name;
                 }
@@ -1268,7 +1268,7 @@ namespace Emby.Server.Implementations.Dto
             if (currentItem is MusicAlbum musicAlbum)
             {
                 var artist = musicAlbum.GetMusicArtist(new DtoOptions(false));
-                if (artist != null)
+                if (artist is not null)
                 {
                     return artist;
                 }
@@ -1309,9 +1309,9 @@ namespace Emby.Server.Implementations.Dto
 
             var imageTags = dto.ImageTags;
 
-            while ((!(imageTags != null && imageTags.ContainsKey(ImageType.Logo)) && logoLimit > 0)
-                || (!(imageTags != null && imageTags.ContainsKey(ImageType.Art)) && artLimit > 0)
-                || (!(imageTags != null && imageTags.ContainsKey(ImageType.Thumb)) && thumbLimit > 0)
+            while ((!(imageTags is not null && imageTags.ContainsKey(ImageType.Logo)) && logoLimit > 0)
+                || (!(imageTags is not null && imageTags.ContainsKey(ImageType.Art)) && artLimit > 0)
+                || (!(imageTags is not null && imageTags.ContainsKey(ImageType.Thumb)) && thumbLimit > 0)
                 || parent is Series)
             {
                 parent ??= isFirst ? GetImageDisplayParent(item, item) ?? owner : parent;
@@ -1322,40 +1322,40 @@ namespace Emby.Server.Implementations.Dto
 
                 var allImages = parent.ImageInfos;
 
-                if (logoLimit > 0 && !(imageTags != null && imageTags.ContainsKey(ImageType.Logo)) && dto.ParentLogoItemId is null)
+                if (logoLimit > 0 && !(imageTags is not null && imageTags.ContainsKey(ImageType.Logo)) && dto.ParentLogoItemId is null)
                 {
                     var image = allImages.FirstOrDefault(i => i.Type == ImageType.Logo);
 
-                    if (image != null)
+                    if (image is not null)
                     {
                         dto.ParentLogoItemId = parent.Id;
                         dto.ParentLogoImageTag = GetTagAndFillBlurhash(dto, parent, image);
                     }
                 }
 
-                if (artLimit > 0 && !(imageTags != null && imageTags.ContainsKey(ImageType.Art)) && dto.ParentArtItemId is null)
+                if (artLimit > 0 && !(imageTags is not null && imageTags.ContainsKey(ImageType.Art)) && dto.ParentArtItemId is null)
                 {
                     var image = allImages.FirstOrDefault(i => i.Type == ImageType.Art);
 
-                    if (image != null)
+                    if (image is not null)
                     {
                         dto.ParentArtItemId = parent.Id;
                         dto.ParentArtImageTag = GetTagAndFillBlurhash(dto, parent, image);
                     }
                 }
 
-                if (thumbLimit > 0 && !(imageTags != null && imageTags.ContainsKey(ImageType.Thumb)) && (dto.ParentThumbItemId is null || parent is Series) && parent is not ICollectionFolder && parent is not UserView)
+                if (thumbLimit > 0 && !(imageTags is not null && imageTags.ContainsKey(ImageType.Thumb)) && (dto.ParentThumbItemId is null || parent is Series) && parent is not ICollectionFolder && parent is not UserView)
                 {
                     var image = allImages.FirstOrDefault(i => i.Type == ImageType.Thumb);
 
-                    if (image != null)
+                    if (image is not null)
                     {
                         dto.ParentThumbItemId = parent.Id;
                         dto.ParentThumbImageTag = GetTagAndFillBlurhash(dto, parent, image);
                     }
                 }
 
-                if (backdropLimit > 0 && !((dto.BackdropImageTags != null && dto.BackdropImageTags.Length > 0) || (dto.ParentBackdropImageTags != null && dto.ParentBackdropImageTags.Length > 0)))
+                if (backdropLimit > 0 && !((dto.BackdropImageTags is not null && dto.BackdropImageTags.Length > 0) || (dto.ParentBackdropImageTags is not null && dto.ParentBackdropImageTags.Length > 0)))
                 {
                     var images = allImages.Where(i => i.Type == ImageType.Backdrop).Take(backdropLimit).ToList();
 
diff --git a/Emby.Server.Implementations/EntryPoints/LibraryChangedNotifier.cs b/Emby.Server.Implementations/EntryPoints/LibraryChangedNotifier.cs
index fb6f52332..25a7029c9 100644
--- a/Emby.Server.Implementations/EntryPoints/LibraryChangedNotifier.cs
+++ b/Emby.Server.Implementations/EntryPoints/LibraryChangedNotifier.cs
@@ -299,7 +299,7 @@ namespace Emby.Server.Implementations.EntryPoints
 
                 SendChangeNotifications(_itemsAdded.ToList(), itemsUpdated, _itemsRemoved.ToList(), foldersAddedTo, foldersRemovedFrom, CancellationToken.None).GetAwaiter().GetResult();
 
-                if (LibraryUpdateTimer != null)
+                if (LibraryUpdateTimer is not null)
                 {
                     LibraryUpdateTimer.Dispose();
                     LibraryUpdateTimer = null;
@@ -475,7 +475,7 @@ namespace Emby.Server.Implementations.EntryPoints
         {
             if (dispose)
             {
-                if (LibraryUpdateTimer != null)
+                if (LibraryUpdateTimer is not null)
                 {
                     LibraryUpdateTimer.Dispose();
                     LibraryUpdateTimer = null;
diff --git a/Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs b/Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs
index ce81f9e42..42c8f24a1 100644
--- a/Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs
+++ b/Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs
@@ -75,11 +75,11 @@ namespace Emby.Server.Implementations.EntryPoints
                 var baseItem = e.Item;
 
                 // Go up one level for indicators
-                if (baseItem != null)
+                if (baseItem is not null)
                 {
                     var parent = baseItem.GetOwner() ?? baseItem.GetParent();
 
-                    if (parent != null)
+                    if (parent is not null)
                     {
                         keys.Add(parent);
                     }
@@ -97,7 +97,7 @@ namespace Emby.Server.Implementations.EntryPoints
 
                 SendNotifications(changes, CancellationToken.None).GetAwaiter().GetResult();
 
-                if (_updateTimer != null)
+                if (_updateTimer is not null)
                 {
                     _updateTimer.Dispose();
                     _updateTimer = null;
@@ -145,7 +145,7 @@ namespace Emby.Server.Implementations.EntryPoints
 
         public void Dispose()
         {
-            if (_updateTimer != null)
+            if (_updateTimer is not null)
             {
                 _updateTimer.Dispose();
                 _updateTimer = null;
diff --git a/Emby.Server.Implementations/IO/FileRefresher.cs b/Emby.Server.Implementations/IO/FileRefresher.cs
index 6337952c1..534ca7b6c 100644
--- a/Emby.Server.Implementations/IO/FileRefresher.cs
+++ b/Emby.Server.Implementations/IO/FileRefresher.cs
@@ -138,7 +138,7 @@ namespace Emby.Server.Implementations.IO
             IEnumerable<BaseItem> itemsToRefresh = paths
                 .Distinct(StringComparer.OrdinalIgnoreCase)
                 .Select(GetAffectedBaseItem)
-                .Where(item => item != null)
+                .Where(item => item is not null)
                 .GroupBy(x => x!.Id) // Removed null values in the previous .Where()
                 .Select(x => x.First())!;
 
@@ -185,7 +185,7 @@ namespace Emby.Server.Implementations.IO
                 path = System.IO.Path.GetDirectoryName(path) ?? string.Empty;
             }
 
-            if (item != null)
+            if (item is not null)
             {
                 // If the item has been deleted find the first valid parent that still exists
                 while (!Directory.Exists(item.Path) && !File.Exists(item.Path))
@@ -206,7 +206,7 @@ namespace Emby.Server.Implementations.IO
         {
             lock (_timerLock)
             {
-                if (_timer != null)
+                if (_timer is not null)
                 {
                     _timer.Dispose();
                     _timer = null;
diff --git a/Emby.Server.Implementations/IO/LibraryMonitor.cs b/Emby.Server.Implementations/IO/LibraryMonitor.cs
index c1422c43d..e88346771 100644
--- a/Emby.Server.Implementations/IO/LibraryMonitor.cs
+++ b/Emby.Server.Implementations/IO/LibraryMonitor.cs
@@ -115,7 +115,7 @@ namespace Emby.Server.Implementations.IO
 
             var options = _libraryManager.GetLibraryOptions(item);
 
-            if (options != null)
+            if (options is not null)
             {
                 return options.EnableRealtimeMonitor;
             }
diff --git a/Emby.Server.Implementations/IO/ManagedFileSystem.cs b/Emby.Server.Implementations/IO/ManagedFileSystem.cs
index 120b1812a..cdb301094 100644
--- a/Emby.Server.Implementations/IO/ManagedFileSystem.cs
+++ b/Emby.Server.Implementations/IO/ManagedFileSystem.cs
@@ -149,7 +149,7 @@ namespace Emby.Server.Implementations.IO
             var extension = Path.GetExtension(shortcutPath);
             var handler = _shortcutHandlers.Find(i => string.Equals(extension, i.Extension, StringComparison.OrdinalIgnoreCase));
 
-            if (handler != null)
+            if (handler is not null)
             {
                 handler.Create(shortcutPath, target);
             }
@@ -621,14 +621,14 @@ namespace Emby.Server.Implementations.IO
 
             // On linux and osx the search pattern is case sensitive
             // If we're OK with case-sensitivity, and we're only filtering for one extension, then use the native method
-            if ((enableCaseSensitiveExtensions || _isEnvironmentCaseInsensitive) && extensions != null && extensions.Count == 1)
+            if ((enableCaseSensitiveExtensions || _isEnvironmentCaseInsensitive) && extensions is not null && extensions.Count == 1)
             {
                 return ToMetadata(new DirectoryInfo(path).EnumerateFiles("*" + extensions[0], enumerationOptions));
             }
 
             var files = new DirectoryInfo(path).EnumerateFiles("*", enumerationOptions);
 
-            if (extensions != null && extensions.Count > 0)
+            if (extensions is not null && extensions.Count > 0)
             {
                 files = files.Where(i =>
                 {
@@ -678,14 +678,14 @@ namespace Emby.Server.Implementations.IO
 
             // On linux and osx the search pattern is case sensitive
             // If we're OK with case-sensitivity, and we're only filtering for one extension, then use the native method
-            if ((enableCaseSensitiveExtensions || _isEnvironmentCaseInsensitive) && extensions != null && extensions.Length == 1)
+            if ((enableCaseSensitiveExtensions || _isEnvironmentCaseInsensitive) && extensions is not null && extensions.Length == 1)
             {
                 return Directory.EnumerateFiles(path, "*" + extensions[0], enumerationOptions);
             }
 
             var files = Directory.EnumerateFiles(path, "*", enumerationOptions);
 
-            if (extensions != null && extensions.Length > 0)
+            if (extensions is not null && extensions.Length > 0)
             {
                 files = files.Where(i =>
                 {
diff --git a/Emby.Server.Implementations/IO/StreamHelper.cs b/Emby.Server.Implementations/IO/StreamHelper.cs
index f55c16d6d..6eaf22ce4 100644
--- a/Emby.Server.Implementations/IO/StreamHelper.cs
+++ b/Emby.Server.Implementations/IO/StreamHelper.cs
@@ -23,7 +23,7 @@ namespace Emby.Server.Implementations.IO
 
                     await destination.WriteAsync(buffer.AsMemory(0, read), cancellationToken).ConfigureAwait(false);
 
-                    if (onStarted != null)
+                    if (onStarted is not null)
                     {
                         onStarted();
                         onStarted = null;
diff --git a/Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs b/Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs
index 57c2f1a5e..0a3d740cc 100644
--- a/Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs
+++ b/Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs
@@ -81,7 +81,7 @@ namespace Emby.Server.Implementations.Images
         {
             var image = item.GetImageInfo(imageType, 0);
 
-            if (image != null)
+            if (image is not null)
             {
                 if (!image.IsLocalFile)
                 {
@@ -143,20 +143,20 @@ namespace Emby.Server.Implementations.Images
                     if (useBackdrop)
                     {
                         var backdrop = i.GetImageInfo(ImageType.Backdrop, 0);
-                        if (backdrop != null && backdrop.IsLocalFile)
+                        if (backdrop is not null && backdrop.IsLocalFile)
                         {
                             return backdrop.Path;
                         }
                     }
 
                     var image = i.GetImageInfo(ImageType.Primary, 0);
-                    if (image != null && image.IsLocalFile)
+                    if (image is not null && image.IsLocalFile)
                     {
                         return image.Path;
                     }
 
                     image = i.GetImageInfo(ImageType.Thumb, 0);
-                    if (image != null && image.IsLocalFile)
+                    if (image is not null && image.IsLocalFile)
                     {
                         return image.Path;
                     }
@@ -268,7 +268,7 @@ namespace Emby.Server.Implementations.Images
         {
             var image = item.GetImageInfo(type, 0);
 
-            if (image != null)
+            if (image is not null)
             {
                 if (!image.IsLocalFile)
                 {
diff --git a/Emby.Server.Implementations/Images/DynamicImageProvider.cs b/Emby.Server.Implementations/Images/DynamicImageProvider.cs
index 0faa0f8fa..82690f8a9 100644
--- a/Emby.Server.Implementations/Images/DynamicImageProvider.cs
+++ b/Emby.Server.Implementations/Images/DynamicImageProvider.cs
@@ -52,7 +52,7 @@ namespace Emby.Server.Implementations.Images
                 if (i is Episode episode)
                 {
                     var series = episode.Series;
-                    if (series != null)
+                    if (series is not null)
                     {
                         return series;
                     }
@@ -63,7 +63,7 @@ namespace Emby.Server.Implementations.Images
                 if (i is Season season)
                 {
                     var series = season.Series;
-                    if (series != null)
+                    if (series is not null)
                     {
                         return series;
                     }
@@ -74,7 +74,7 @@ namespace Emby.Server.Implementations.Images
                 if (i is Audio audio)
                 {
                     var album = audio.AlbumEntity;
-                    if (album != null && album.HasImage(ImageType.Primary))
+                    if (album is not null && album.HasImage(ImageType.Primary))
                     {
                         return album;
                     }
diff --git a/Emby.Server.Implementations/Images/PlaylistImageProvider.cs b/Emby.Server.Implementations/Images/PlaylistImageProvider.cs
index b8f0f0d65..580151287 100644
--- a/Emby.Server.Implementations/Images/PlaylistImageProvider.cs
+++ b/Emby.Server.Implementations/Images/PlaylistImageProvider.cs
@@ -34,7 +34,7 @@ namespace Emby.Server.Implementations.Images
                     if (subItem is Episode episode)
                     {
                         var series = episode.Series;
-                        if (series != null && series.HasImage(ImageType.Primary))
+                        if (series is not null && series.HasImage(ImageType.Primary))
                         {
                             return series;
                         }
@@ -47,7 +47,7 @@ namespace Emby.Server.Implementations.Images
 
                     var parent = subItem.GetOwner() ?? subItem.GetParent();
 
-                    if (parent != null && parent.HasImage(ImageType.Primary))
+                    if (parent is not null && parent.HasImage(ImageType.Primary))
                     {
                         if (parent is MusicAlbum)
                         {
@@ -57,7 +57,7 @@ namespace Emby.Server.Implementations.Images
 
                     return null;
                 })
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .GroupBy(x => x.Id)
                 .Select(x => x.First())
                 .ToList();
diff --git a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
index e558fbe27..665d70a41 100644
--- a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
+++ b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
@@ -52,7 +52,7 @@ namespace Emby.Server.Implementations.Library
 
             if (fileInfo.IsDirectory)
             {
-                if (parent != null)
+                if (parent is not null)
                 {
                     // Ignore extras folders but allow it at the collection level
                     if (_namingOptions.AllExtrasTypesFolderNames.ContainsKey(filename)
@@ -65,7 +65,7 @@ namespace Emby.Server.Implementations.Library
             }
             else
             {
-                if (parent != null)
+                if (parent is not null)
                 {
                     // Don't resolve these into audio files
                     if (Path.GetFileNameWithoutExtension(filename.AsSpan()).Equals(BaseItem.ThemeSongFileName, StringComparison.Ordinal)
diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index e8f6d2d23..9ee8a630d 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -465,9 +465,9 @@ namespace Emby.Server.Implementations.Library
         private BaseItem ResolveItem(ItemResolveArgs args, IItemResolver[] resolvers)
         {
             var item = (resolvers ?? EntityResolvers).Select(r => Resolve(args, r))
-                .FirstOrDefault(i => i != null);
+                .FirstOrDefault(i => i is not null);
 
-            if (item != null)
+            if (item is not null)
             {
                 ResolverHelper.SetInitialItemValues(item, args, _fileSystem, this);
             }
@@ -536,7 +536,7 @@ namespace Emby.Server.Implementations.Library
 
             var fullPath = fileInfo.FullName;
 
-            if (string.IsNullOrEmpty(collectionType) && parent != null)
+            if (string.IsNullOrEmpty(collectionType) && parent is not null)
             {
                 collectionType = GetContentTypeOverride(fullPath, true);
             }
@@ -572,7 +572,7 @@ namespace Emby.Server.Implementations.Library
                 }
                 catch (Exception ex)
                 {
-                    if (parent != null && parent.IsPhysicalRoot)
+                    if (parent is not null && parent.IsPhysicalRoot)
                     {
                         _logger.LogError(ex, "Error in GetFilteredFileSystemEntries isPhysicalRoot: {0} IsVf: {1}", isPhysicalRoot, isVf);
 
@@ -654,7 +654,7 @@ namespace Emby.Server.Implementations.Library
         {
             var fileList = files.Where(i => !IgnoreFile(i, parent)).ToList();
 
-            if (parent != null)
+            if (parent is not null)
             {
                 var multiItemResolvers = resolvers is null ? MultiItemResolvers : resolvers.OfType<IMultiItemResolver>().ToArray();
 
@@ -697,7 +697,7 @@ namespace Emby.Server.Implementations.Library
                     _logger.LogError(ex, "Error resolving path {Path}", file.FullName);
                 }
 
-                if (result != null)
+                if (result is not null)
                 {
                     yield return result;
                 }
@@ -750,7 +750,7 @@ namespace Emby.Server.Implementations.Library
 
             var dbItem = GetItemById(folder.Id) as BasePluginFolder;
 
-            if (dbItem != null && string.Equals(dbItem.Path, folder.Path, StringComparison.OrdinalIgnoreCase))
+            if (dbItem is not null && string.Equals(dbItem.Path, folder.Path, StringComparison.OrdinalIgnoreCase))
             {
                 folder = dbItem;
             }
@@ -952,7 +952,7 @@ namespace Emby.Server.Implementations.Library
                 .Cast<T>()
                 .FirstOrDefault();
 
-                if (existing != null)
+                if (existing is not null)
                 {
                     return existing;
                 }
@@ -1181,7 +1181,7 @@ namespace Emby.Server.Implementations.Library
                             return null;
                         }
                     })
-                    .Where(i => i != null)
+                    .Where(i => i is not null)
                     .OrderBy(i => i)
                     .ToArray(),
 
@@ -1190,17 +1190,17 @@ namespace Emby.Server.Implementations.Library
 
             var libraryFolder = allCollectionFolders.FirstOrDefault(i => string.Equals(i.Path, dir, StringComparison.OrdinalIgnoreCase));
 
-            if (libraryFolder != null && libraryFolder.HasImage(ImageType.Primary))
+            if (libraryFolder is not null && libraryFolder.HasImage(ImageType.Primary))
             {
                 info.PrimaryImageItemId = libraryFolder.Id.ToString("N", CultureInfo.InvariantCulture);
             }
 
-            if (libraryFolder != null)
+            if (libraryFolder is not null)
             {
                 info.ItemId = libraryFolder.Id.ToString("N", CultureInfo.InvariantCulture);
                 info.LibraryOptions = GetLibraryOptions(libraryFolder);
 
-                if (refreshQueue != null)
+                if (refreshQueue is not null)
                 {
                     info.RefreshProgress = libraryFolder.GetRefreshProgress();
 
@@ -1245,7 +1245,7 @@ namespace Emby.Server.Implementations.Library
 
             item = RetrieveItem(id);
 
-            if (item != null)
+            if (item is not null)
             {
                 RegisterItem(item);
             }
@@ -1258,13 +1258,13 @@ namespace Emby.Server.Implementations.Library
             if (query.Recursive && !query.ParentId.Equals(default))
             {
                 var parent = GetItemById(query.ParentId);
-                if (parent != null)
+                if (parent is not null)
                 {
                     SetTopParentIdsOrAncestors(query, new List<BaseItem> { parent });
                 }
             }
 
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User, allowExternalContent);
             }
@@ -1282,13 +1282,13 @@ namespace Emby.Server.Implementations.Library
             if (query.Recursive && !query.ParentId.Equals(default))
             {
                 var parent = GetItemById(query.ParentId);
-                if (parent != null)
+                if (parent is not null)
                 {
                     SetTopParentIdsOrAncestors(query, new List<BaseItem> { parent });
                 }
             }
 
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1302,7 +1302,7 @@ namespace Emby.Server.Implementations.Library
 
             if (query.AncestorIds.Length == 0 && query.TopParentIds.Length == 0)
             {
-                if (query.User != null)
+                if (query.User is not null)
                 {
                     AddUserToQuery(query, query.User);
                 }
@@ -1313,7 +1313,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<BaseItem> QueryItems(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1331,7 +1331,7 @@ namespace Emby.Server.Implementations.Library
 
         public List<Guid> GetItemIds(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1341,7 +1341,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetStudios(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1352,7 +1352,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetGenres(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1363,7 +1363,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetMusicGenres(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1374,7 +1374,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetAllArtists(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1385,7 +1385,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetArtists(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1426,7 +1426,7 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetAlbumArtists(InternalItemsQuery query)
         {
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1440,13 +1440,13 @@ namespace Emby.Server.Implementations.Library
             if (query.Recursive && !query.ParentId.Equals(default))
             {
                 var parent = GetItemById(query.ParentId);
-                if (parent != null)
+                if (parent is not null)
                 {
                     SetTopParentIdsOrAncestors(query, new List<BaseItem> { parent });
                 }
             }
 
-            if (query.User != null)
+            if (query.User is not null)
             {
                 AddUserToQuery(query, query.User);
             }
@@ -1524,7 +1524,7 @@ namespace Emby.Server.Implementations.Library
                 if (!view.DisplayParentId.Equals(default))
                 {
                     var displayParent = GetItemById(view.DisplayParentId);
-                    if (displayParent != null)
+                    if (displayParent is not null)
                     {
                         return GetTopParentIdsForQuery(displayParent, user);
                     }
@@ -1535,7 +1535,7 @@ namespace Emby.Server.Implementations.Library
                 if (!view.ParentId.Equals(default))
                 {
                     var displayParent = GetItemById(view.ParentId);
-                    if (displayParent != null)
+                    if (displayParent is not null)
                     {
                         return GetTopParentIdsForQuery(displayParent, user);
                     }
@@ -1544,7 +1544,7 @@ namespace Emby.Server.Implementations.Library
                 }
 
                 // Handle grouping
-                if (user != null && !string.IsNullOrEmpty(view.ViewType) && UserView.IsEligibleForGrouping(view.ViewType)
+                if (user is not null && !string.IsNullOrEmpty(view.ViewType) && UserView.IsEligibleForGrouping(view.ViewType)
                     && user.GetPreference(PreferenceKind.GroupedFolders).Length > 0)
                 {
                     return GetUserRootFolder()
@@ -1564,7 +1564,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             var topParent = item.GetTopParent();
-            if (topParent != null)
+            if (topParent is not null)
             {
                 return new[] { topParent.Id };
             }
@@ -1589,7 +1589,7 @@ namespace Emby.Server.Implementations.Library
             return items
                 .SelectMany(i => i.ToArray())
                 .Select(ResolveIntro)
-                .Where(i => i != null);
+                .Where(i => i is not null);
         }
 
         /// <summary>
@@ -1648,7 +1648,7 @@ namespace Emby.Server.Implementations.Library
                         // Pull the saved db item that will include metadata
                         var dbItem = GetItemById(video.Id) as Video;
 
-                        if (dbItem != null)
+                        if (dbItem is not null)
                         {
                             video = dbItem;
                         }
@@ -1685,7 +1685,7 @@ namespace Emby.Server.Implementations.Library
 
             IOrderedEnumerable<BaseItem> orderedItems = null;
 
-            foreach (var orderBy in sortBy.Select(o => GetComparer(o, user)).Where(c => c != null))
+            foreach (var orderBy in sortBy.Select(o => GetComparer(o, user)).Where(c => c is not null))
             {
                 if (isFirst)
                 {
@@ -1781,7 +1781,7 @@ namespace Emby.Server.Implementations.Library
                 RegisterItem(item);
             }
 
-            if (ItemAdded != null)
+            if (ItemAdded is not null)
             {
                 foreach (var item in items)
                 {
@@ -1811,7 +1811,7 @@ namespace Emby.Server.Implementations.Library
 
         private bool ImageNeedsRefresh(ItemImageInfo image)
         {
-            if (image.Path != null && image.IsLocalFile)
+            if (image.Path is not null && image.IsLocalFile)
             {
                 if (image.Width == 0 || image.Height == 0 || string.IsNullOrEmpty(image.BlurHash))
                 {
@@ -1829,7 +1829,7 @@ namespace Emby.Server.Implementations.Library
                 }
             }
 
-            return image.Path != null && !image.IsLocalFile;
+            return image.Path is not null && !image.IsLocalFile;
         }
 
         /// <inheritdoc />
@@ -1838,7 +1838,7 @@ namespace Emby.Server.Implementations.Library
             ArgumentNullException.ThrowIfNull(item);
 
             var outdated = forceUpdate
-                ? item.ImageInfos.Where(i => i.Path != null).ToArray()
+                ? item.ImageInfos.Where(i => i.Path is not null).ToArray()
                 : item.ImageInfos.Where(ImageNeedsRefresh).ToArray();
             // Skip image processing if current or live tv source
             if (outdated.Length == 0 || item.SourceType != SourceType.Library)
@@ -1923,7 +1923,7 @@ namespace Emby.Server.Implementations.Library
 
             _itemRepository.SaveItems(items, cancellationToken);
 
-            if (ItemUpdated != null)
+            if (ItemUpdated is not null)
             {
                 foreach (var item in items)
                 {
@@ -1975,7 +1975,7 @@ namespace Emby.Server.Implementations.Library
         /// <param name="parent">The parent item.</param>
         public void ReportItemRemoved(BaseItem item, BaseItem parent)
         {
-            if (ItemRemoved != null)
+            if (ItemRemoved is not null)
             {
                 try
                 {
@@ -2006,7 +2006,7 @@ namespace Emby.Server.Implementations.Library
 
         public List<Folder> GetCollectionFolders(BaseItem item)
         {
-            while (item != null)
+            while (item is not null)
             {
                 var parent = item.GetParent();
 
@@ -2028,7 +2028,7 @@ namespace Emby.Server.Implementations.Library
 
         public List<Folder> GetCollectionFolders(BaseItem item, List<Folder> allUserRootChildren)
         {
-            while (item != null)
+            while (item is not null)
             {
                 var parent = item.GetParent();
 
@@ -2251,7 +2251,7 @@ namespace Emby.Server.Implementations.Library
             if (!refresh && !item.DisplayParentId.Equals(default))
             {
                 var displayParent = GetItemById(item.DisplayParentId);
-                refresh = displayParent != null && displayParent.DateLastSaved > item.DateLastRefreshed;
+                refresh = displayParent is not null && displayParent.DateLastSaved > item.DateLastRefreshed;
             }
 
             if (refresh)
@@ -2315,7 +2315,7 @@ namespace Emby.Server.Implementations.Library
             if (!refresh && !item.DisplayParentId.Equals(default))
             {
                 var displayParent = GetItemById(item.DisplayParentId);
-                refresh = displayParent != null && displayParent.DateLastSaved > item.DateLastRefreshed;
+                refresh = displayParent is not null && displayParent.DateLastSaved > item.DateLastRefreshed;
             }
 
             if (refresh)
@@ -2394,7 +2394,7 @@ namespace Emby.Server.Implementations.Library
             if (!refresh && !item.DisplayParentId.Equals(default))
             {
                 var displayParent = GetItemById(item.DisplayParentId);
-                refresh = displayParent != null && displayParent.DateLastSaved > item.DateLastRefreshed;
+                refresh = displayParent is not null && displayParent.DateLastSaved > item.DateLastRefreshed;
             }
 
             if (refresh)
@@ -2441,7 +2441,7 @@ namespace Emby.Server.Implementations.Library
         public bool FillMissingEpisodeNumbersFromPath(Episode episode, bool forceRefresh)
         {
             var series = episode.Series;
-            bool? isAbsoluteNaming = series != null && string.Equals(series.DisplayOrder, "absolute", StringComparison.OrdinalIgnoreCase);
+            bool? isAbsoluteNaming = series is not null && string.Equals(series.DisplayOrder, "absolute", StringComparison.OrdinalIgnoreCase);
             if (!isAbsoluteNaming.Value)
             {
                 // In other words, no filter applied
@@ -2462,7 +2462,7 @@ namespace Emby.Server.Implementations.Library
                 if (episodeInfo is null && parent.GetType() == typeof(Folder))
                 {
                     episodeInfo = resolver.Resolve(parent.Path, true, null, null, isAbsoluteNaming);
-                    if (episodeInfo != null)
+                    if (episodeInfo is not null)
                     {
                         // add the container
                         episodeInfo.Container = Path.GetExtension(episode.Path)?.TrimStart('.');
@@ -2582,7 +2582,7 @@ namespace Emby.Server.Implementations.Library
             {
                 var season = episode.Season;
 
-                if (season != null)
+                if (season is not null)
                 {
                     episode.ParentIndexNumber = season.IndexNumber;
                 }
@@ -2640,7 +2640,7 @@ namespace Emby.Server.Implementations.Library
                         }
 
                         var extra = GetExtra(file, extraType.Value);
-                        if (extra != null)
+                        if (extra is not null)
                         {
                             yield return extra;
                         }
@@ -2649,7 +2649,7 @@ namespace Emby.Server.Implementations.Library
                 else if (!current.IsDirectory && _extraResolver.TryGetExtraTypeForOwner(current.FullName, ownerVideoInfo, out var extraType))
                 {
                     var extra = GetExtra(current, extraType.Value);
-                    if (extra != null)
+                    if (extra is not null)
                     {
                         yield return extra;
                     }
@@ -2666,7 +2666,7 @@ namespace Emby.Server.Implementations.Library
 
                 // Try to retrieve it from the db. If we don't find it, use the resolved version
                 var itemById = GetItemById(extra.Id);
-                if (itemById != null)
+                if (itemById is not null)
                 {
                     extra = itemById;
                 }
@@ -2681,10 +2681,10 @@ namespace Emby.Server.Implementations.Library
         public string GetPathAfterNetworkSubstitution(string path, BaseItem ownerItem)
         {
             string newPath;
-            if (ownerItem != null)
+            if (ownerItem is not null)
             {
                 var libraryOptions = GetLibraryOptions(ownerItem);
-                if (libraryOptions != null)
+                if (libraryOptions is not null)
                 {
                     foreach (var pathInfo in libraryOptions.PathInfos)
                     {
@@ -2753,7 +2753,7 @@ namespace Emby.Server.Implementations.Library
                     return null;
                 }
             })
-            .Where(i => i != null)
+            .Where(i => i is not null)
             .Where(i => query.User is null ?
                 true :
                 i.IsVisible(query.User))
@@ -2838,10 +2838,10 @@ namespace Emby.Server.Implementations.Library
             }
 
             var mediaPathInfos = options.PathInfos;
-            if (mediaPathInfos != null)
+            if (mediaPathInfos is not null)
             {
                 var invalidpath = mediaPathInfos.FirstOrDefault(i => !Directory.Exists(i.Path));
-                if (invalidpath != null)
+                if (invalidpath is not null)
                 {
                     throw new ArgumentException("The specified path does not exist: " + invalidpath.Path + ".");
                 }
@@ -2853,7 +2853,7 @@ namespace Emby.Server.Implementations.Library
             {
                 Directory.CreateDirectory(virtualFolderPath);
 
-                if (collectionType != null)
+                if (collectionType is not null)
                 {
                     var path = Path.Combine(virtualFolderPath, collectionType.ToString().ToLowerInvariant() + ".collection");
 
@@ -2862,7 +2862,7 @@ namespace Emby.Server.Implementations.Library
 
                 CollectionFolder.SaveLibraryOptions(virtualFolderPath, options);
 
-                if (mediaPathInfos != null)
+                if (mediaPathInfos is not null)
                 {
                     foreach (var path in mediaPathInfos)
                     {
diff --git a/Emby.Server.Implementations/Library/LiveStreamHelper.cs b/Emby.Server.Implementations/Library/LiveStreamHelper.cs
index 101033551..936a08da8 100644
--- a/Emby.Server.Implementations/Library/LiveStreamHelper.cs
+++ b/Emby.Server.Implementations/Library/LiveStreamHelper.cs
@@ -81,7 +81,7 @@ namespace Emby.Server.Implementations.Library
                     },
                     cancellationToken).ConfigureAwait(false);
 
-                if (cacheFilePath != null)
+                if (cacheFilePath is not null)
                 {
                     Directory.CreateDirectory(Path.GetDirectoryName(cacheFilePath));
                     await using FileStream createStream = AsyncFile.OpenWrite(cacheFilePath);
@@ -140,7 +140,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             var videoStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
-            if (videoStream != null)
+            if (videoStream is not null)
             {
                 if (!videoStream.BitRate.HasValue)
                 {
diff --git a/Emby.Server.Implementations/Library/MediaSourceManager.cs b/Emby.Server.Implementations/Library/MediaSourceManager.cs
index e2474f508..7fff6ab7b 100644
--- a/Emby.Server.Implementations/Library/MediaSourceManager.cs
+++ b/Emby.Server.Implementations/Library/MediaSourceManager.cs
@@ -182,7 +182,7 @@ namespace Emby.Server.Implementations.Library
                     source.SupportsDirectStream = SupportsDirectStream(source.Path, source.Protocol);
                 }
 
-                if (user != null)
+                if (user is not null)
                 {
                     SetDefaultAudioAndSubtitleStreamIndexes(item, source, user);
 
@@ -248,7 +248,7 @@ namespace Emby.Server.Implementations.Library
 
             if (protocol == MediaProtocol.Http)
             {
-                if (path != null)
+                if (path is not null)
                 {
                     if (path.Contains(".m3u", StringComparison.OrdinalIgnoreCase))
                     {
@@ -328,7 +328,7 @@ namespace Emby.Server.Implementations.Library
 
             var sources = hasMediaSources.GetMediaSources(enablePathSubstitution);
 
-            if (user != null)
+            if (user is not null)
             {
                 foreach (var source in sources)
                 {
@@ -357,7 +357,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             var culture = _localizationManager.FindLanguageInfo(language);
-            if (culture != null)
+            if (culture is not null)
             {
                 return culture.ThreeLetterISOLanguageNames;
             }
@@ -432,7 +432,7 @@ namespace Emby.Server.Implementations.Library
             {
                 var audio = source.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Audio);
 
-                if (audio != null)
+                if (audio is not null)
                 {
                     source.DefaultAudioStreamIndex = audio.Index;
                 }
@@ -553,7 +553,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             var videoStream = mediaSource.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
-            if (videoStream != null)
+            if (videoStream is not null)
             {
                 if (!videoStream.BitRate.HasValue)
                 {
@@ -661,7 +661,7 @@ namespace Emby.Server.Implementations.Library
                 },
                     cancellationToken).ConfigureAwait(false);
 
-                if (cacheFilePath != null)
+                if (cacheFilePath is not null)
                 {
                     Directory.CreateDirectory(Path.GetDirectoryName(cacheFilePath));
                     await using FileStream createStream = File.Create(cacheFilePath);
@@ -723,7 +723,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             var videoStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
-            if (videoStream != null)
+            if (videoStream is not null)
             {
                 if (!videoStream.BitRate.HasValue)
                 {
diff --git a/Emby.Server.Implementations/Library/MediaStreamSelector.cs b/Emby.Server.Implementations/Library/MediaStreamSelector.cs
index 609b95772..74c53b2da 100644
--- a/Emby.Server.Implementations/Library/MediaStreamSelector.cs
+++ b/Emby.Server.Implementations/Library/MediaStreamSelector.cs
@@ -19,7 +19,7 @@ namespace Emby.Server.Implementations.Library
             {
                 var defaultStream = sortedStreams.FirstOrDefault(i => i.IsDefault);
 
-                if (defaultStream != null)
+                if (defaultStream is not null)
                 {
                     return defaultStream.Index;
                 }
diff --git a/Emby.Server.Implementations/Library/ResolverHelper.cs b/Emby.Server.Implementations/Library/ResolverHelper.cs
index 590d37b92..dedb56d67 100644
--- a/Emby.Server.Implementations/Library/ResolverHelper.cs
+++ b/Emby.Server.Implementations/Library/ResolverHelper.cs
@@ -31,7 +31,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             // If the resolver didn't specify this
-            if (parent != null)
+            if (parent is not null)
             {
                 item.SetParent(parent);
             }
@@ -71,7 +71,7 @@ namespace Emby.Server.Implementations.Library
             }
 
             // If the resolver didn't specify this
-            if (args.Parent != null)
+            if (args.Parent is not null)
             {
                 item.SetParent(args.Parent);
             }
@@ -113,7 +113,7 @@ namespace Emby.Server.Implementations.Library
             {
                 var childData = args.IsDirectory ? args.GetFileSystemEntryByPath(item.Path) : null;
 
-                if (childData != null)
+                if (childData is not null)
                 {
                     SetDateCreated(item, childData);
                 }
@@ -140,7 +140,7 @@ namespace Emby.Server.Implementations.Library
             if (config.UseFileCreationTimeForDateAdded)
             {
                 // directoryService.getFile may return null
-                if (info != null)
+                if (info is not null)
                 {
                     var dateCreated = info.CreationTimeUtc;
 
diff --git a/Emby.Server.Implementations/Library/Resolvers/Audio/AudioResolver.cs b/Emby.Server.Implementations/Library/Resolvers/Audio/AudioResolver.cs
index bc1f5d08a..06621700a 100644
--- a/Emby.Server.Implementations/Library/Resolvers/Audio/AudioResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/Audio/AudioResolver.cs
@@ -45,7 +45,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
         {
             var result = ResolveMultipleInternal(parent, files, collectionType);
 
-            if (result != null)
+            if (result is not null)
             {
                 foreach (var item in result.Items)
                 {
@@ -126,7 +126,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
                     item = new AudioBook();
                 }
 
-                if (item != null)
+                if (item is not null)
                 {
                     item.IsShortcut = string.Equals(extension, ".strm", StringComparison.OrdinalIgnoreCase);
 
@@ -183,7 +183,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
                 Items = items
             };
 
-            var isInMixedFolder = resolverResult.Count > 1 || (parent != null && parent.IsTopParent);
+            var isInMixedFolder = resolverResult.Count > 1 || (parent is not null && parent.IsTopParent);
 
             foreach (var resolvedItem in resolverResult)
             {
diff --git a/Emby.Server.Implementations/Library/Resolvers/Books/BookResolver.cs b/Emby.Server.Implementations/Library/Resolvers/Books/BookResolver.cs
index 6fc200e3b..042422c6f 100644
--- a/Emby.Server.Implementations/Library/Resolvers/Books/BookResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/Books/BookResolver.cs
@@ -34,7 +34,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Books
 
             var extension = Path.GetExtension(args.Path);
 
-            if (extension != null && _validExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
+            if (extension is not null && _validExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
             {
                 // It's a book
                 return new Book
diff --git a/Emby.Server.Implementations/Library/Resolvers/Movies/MovieResolver.cs b/Emby.Server.Implementations/Library/Resolvers/Movies/MovieResolver.cs
index 6b18ad237..5f1a3ec6d 100644
--- a/Emby.Server.Implementations/Library/Resolvers/Movies/MovieResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/Movies/MovieResolver.cs
@@ -64,7 +64,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Movies
         {
             var result = ResolveMultipleInternal(parent, files, collectionType);
 
-            if (result != null)
+            if (result is not null)
             {
                 foreach (var item in result.Items)
                 {
@@ -168,12 +168,12 @@ namespace Emby.Server.Implementations.Library.Resolvers.Movies
             }
 
             // Ignore extras
-            if (item?.ExtraType != null)
+            if (item?.ExtraType is not null)
             {
                 return null;
             }
 
-            if (item != null)
+            if (item is not null)
             {
                 item.IsInMixedFolder = true;
             }
@@ -268,7 +268,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Movies
 
             var videoInfos = files
                 .Select(i => VideoResolver.Resolve(i.FullName, i.IsDirectory, NamingOptions, parseName))
-                .Where(f => f != null)
+                .Where(f => f is not null)
                 .ToList();
 
             var resolverResult = VideoListResolver.Resolve(videoInfos, NamingOptions, supportMultiEditions, parseName);
@@ -284,7 +284,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Movies
             {
                 var firstVideo = video.Files[0];
                 var path = firstVideo.Path;
-                if (video.ExtraType != null)
+                if (video.ExtraType is not null)
                 {
                     result.ExtraFiles.Add(files.Find(f => string.Equals(f.FullName, path, StringComparison.OrdinalIgnoreCase)));
                     continue;
@@ -568,7 +568,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Movies
 
         private bool IsInvalid(Folder parent, ReadOnlySpan<char> collectionType)
         {
-            if (parent != null)
+            if (parent is not null)
             {
                 if (parent.IsRoot)
                 {
diff --git a/Emby.Server.Implementations/Library/Resolvers/TV/EpisodeResolver.cs b/Emby.Server.Implementations/Library/Resolvers/TV/EpisodeResolver.cs
index 2e2b79341..0fcc5070b 100644
--- a/Emby.Server.Implementations/Library/Resolvers/TV/EpisodeResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/TV/EpisodeResolver.cs
@@ -46,27 +46,27 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
 
             // If the parent is a Season or Series and the parent is not an extras folder, then this is an Episode if the VideoResolver returns something
             // Also handle flat tv folders
-            if (season != null ||
+            if (season is not null ||
                 string.Equals(args.GetCollectionType(), CollectionType.TvShows, StringComparison.OrdinalIgnoreCase) ||
                 args.HasParent<Series>())
             {
                 var episode = ResolveVideo<Episode>(args, false);
 
                 // Ignore extras
-                if (episode is null || episode.ExtraType != null)
+                if (episode is null || episode.ExtraType is not null)
                 {
                     return null;
                 }
 
                 var series = parent as Series ?? parent.GetParents().OfType<Series>().FirstOrDefault();
 
-                if (series != null)
+                if (series is not null)
                 {
                     episode.SeriesId = series.Id;
                     episode.SeriesName = series.Name;
                 }
 
-                if (season != null)
+                if (season is not null)
                 {
                     episode.SeasonId = season.Id;
                     episode.SeasonName = season.Name;
diff --git a/Emby.Server.Implementations/Library/Resolvers/TV/SeasonResolver.cs b/Emby.Server.Implementations/Library/Resolvers/TV/SeasonResolver.cs
index ea4851458..62a524d2e 100644
--- a/Emby.Server.Implementations/Library/Resolvers/TV/SeasonResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/TV/SeasonResolver.cs
@@ -66,7 +66,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
 
                     var episodeInfo = resolver.Resolve(testPath, true);
 
-                    if (episodeInfo?.EpisodeNumber != null && episodeInfo.SeasonNumber.HasValue)
+                    if (episodeInfo?.EpisodeNumber is not null && episodeInfo.SeasonNumber.HasValue)
                     {
                         _logger.LogDebug(
                             "Found folder underneath series with episode number: {0}. Season {1}. Episode {2}",
diff --git a/Emby.Server.Implementations/Library/Resolvers/TV/SeriesResolver.cs b/Emby.Server.Implementations/Library/Resolvers/TV/SeriesResolver.cs
index f5ac3c665..8f69175d0 100644
--- a/Emby.Server.Implementations/Library/Resolvers/TV/SeriesResolver.cs
+++ b/Emby.Server.Implementations/Library/Resolvers/TV/SeriesResolver.cs
@@ -76,7 +76,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
                 {
                     if (args.ContainsFileSystemEntryByName("tvshow.nfo"))
                     {
-                        if (args.Parent != null && args.Parent.IsRoot)
+                        if (args.Parent is not null && args.Parent.IsRoot)
                         {
                             // For now, return null, but if we want to allow this in the future then add some additional checks to guard against a misplaced tvshow.nfo
                             return null;
@@ -89,7 +89,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
                         };
                     }
 
-                    if (args.Parent != null && args.Parent.IsRoot)
+                    if (args.Parent is not null && args.Parent.IsRoot)
                     {
                         return null;
                     }
@@ -138,7 +138,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
                         var episodeResolver = new Naming.TV.EpisodeResolver(namingOptions);
 
                         var episodeInfo = episodeResolver.Resolve(fullName, false, true, false, fillExtendedInfo: false);
-                        if (episodeInfo != null && episodeInfo.EpisodeNumber.HasValue)
+                        if (episodeInfo is not null && episodeInfo.EpisodeNumber.HasValue)
                         {
                             return true;
                         }
diff --git a/Emby.Server.Implementations/Library/UserDataManager.cs b/Emby.Server.Implementations/Library/UserDataManager.cs
index aecab7d9c..a0a90b129 100644
--- a/Emby.Server.Implementations/Library/UserDataManager.cs
+++ b/Emby.Server.Implementations/Library/UserDataManager.cs
@@ -126,7 +126,7 @@ namespace Emby.Server.Implementations.Library
         {
             var userData = _repository.GetUserData(internalUserId, keys);
 
-            if (userData != null)
+            if (userData is not null)
             {
                 return userData;
             }
diff --git a/Emby.Server.Implementations/Library/UserViewManager.cs b/Emby.Server.Implementations/Library/UserViewManager.cs
index c294a63db..1137625f4 100644
--- a/Emby.Server.Implementations/Library/UserViewManager.cs
+++ b/Emby.Server.Implementations/Library/UserViewManager.cs
@@ -72,7 +72,7 @@ namespace Emby.Server.Implementations.Library
                     continue;
                 }
 
-                if (collectionFolder != null && UserView.IsEligibleForGrouping(folder) && user.IsFolderGrouped(folder.Id))
+                if (collectionFolder is not null && UserView.IsEligibleForGrouping(folder) && user.IsFolderGrouped(folder.Id))
                 {
                     groupedFolders.Add(collectionFolder);
                     continue;
@@ -214,9 +214,9 @@ namespace Emby.Server.Implementations.Library
                 }
                 else
                 {
-                    var current = list.FirstOrDefault(i => i.Item1 != null && i.Item1.Id.Equals(container.Id));
+                    var current = list.FirstOrDefault(i => i.Item1 is not null && i.Item1.Id.Equals(container.Id));
 
-                    if (current != null)
+                    if (current is not null)
                     {
                         current.Item2.Add(item);
                     }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
index b2d25fdae..49833de73 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
@@ -34,7 +34,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
         public Task Record(IDirectStreamProvider? directStreamProvider, MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
         {
-            if (directStreamProvider != null)
+            if (directStreamProvider is not null)
             {
                 return RecordFromDirectStreamProvider(directStreamProvider, targetFile, duration, onStarted, cancellationToken);
             }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
index 2f4854a6d..8f5fa8694 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
@@ -367,7 +367,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             {
                 var epgChannel = GetEpgChannelFromTunerChannel(info, tunerChannel, epgChannels);
 
-                if (epgChannel != null)
+                if (epgChannel is not null)
                 {
                     if (!string.IsNullOrWhiteSpace(epgChannel.Name))
                     {
@@ -450,7 +450,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
                 var channel = epgChannelData.GetChannelById(mappedTunerChannelId);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     return channel;
                 }
@@ -473,7 +473,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
                 var channel = epgChannelData.GetChannelById(mappedTunerChannelId);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     return channel;
                 }
@@ -490,7 +490,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
                 var channel = epgChannelData.GetChannelByNumber(tunerChannelNumber);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     return channel;
                 }
@@ -502,7 +502,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
                 var channel = epgChannelData.GetChannelByName(normalizedName);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     return channel;
                 }
@@ -552,7 +552,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             }
 
             var remove = _seriesTimerProvider.GetAll().FirstOrDefault(r => string.Equals(r.Id, timerId, StringComparison.OrdinalIgnoreCase));
-            if (remove != null)
+            if (remove is not null)
             {
                 _seriesTimerProvider.Delete(remove);
             }
@@ -563,7 +563,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         private void CancelTimerInternal(string timerId, bool isSeriesCancelled, bool isManualCancellation)
         {
             var timer = _timerProvider.GetTimer(timerId);
-            if (timer != null)
+            if (timer is not null)
             {
                 var statusChanging = timer.Status != RecordingStatus.Cancelled;
                 timer.Status = RecordingStatus.Cancelled;
@@ -582,7 +582,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                     _timerProvider.AddOrUpdate(timer, false);
                 }
 
-                if (statusChanging && TimerCancelled != null)
+                if (statusChanging && TimerCancelled is not null)
                 {
                     TimerCancelled(this, new GenericEventArgs<string>(timerId));
                 }
@@ -617,7 +617,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 null :
                 _timerProvider.GetTimerByProgramId(info.ProgramId);
 
-            if (existingTimer != null)
+            if (existingTimer is not null)
             {
                 if (existingTimer.Status == RecordingStatus.Cancelled
                     || existingTimer.Status == RecordingStatus.Completed)
@@ -648,7 +648,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 programInfo = GetProgramInfoFromCache(info.ChannelId, info.StartDate);
             }
 
-            if (programInfo != null)
+            if (programInfo is not null)
             {
                 CopyProgramInfoToTimerInfo(programInfo, info);
             }
@@ -668,7 +668,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             // populate info.seriesID
             var program = GetProgramInfoFromCache(info.ProgramId);
 
-            if (program != null)
+            if (program is not null)
             {
                 info.SeriesId = program.ExternalSeriesId;
             }
@@ -714,7 +714,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         {
             var instance = _seriesTimerProvider.GetAll().FirstOrDefault(i => string.Equals(i.Id, info.Id, StringComparison.OrdinalIgnoreCase));
 
-            if (instance != null)
+            if (instance is not null)
             {
                 instance.ChannelId = info.ChannelId;
                 instance.Days = info.Days;
@@ -861,7 +861,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 }
             };
 
-            if (program != null)
+            if (program is not null)
             {
                 defaults.SeriesId = program.SeriesId;
                 defaults.ProgramId = program.Id;
@@ -947,7 +947,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
                     return provider is null ? null : new Tuple<IListingsProvider, ListingsProviderInfo>(provider, i);
                 })
-                .Where(i => i != null)
+                .Where(i => i is not null)
                 .ToList();
         }
 
@@ -964,7 +964,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 null :
                 currentLiveStreams.FirstOrDefault(i => string.Equals(i.OriginalStreamId, streamId, StringComparison.OrdinalIgnoreCase));
 
-            if (result != null && result.EnableStreamSharing)
+            if (result is not null && result.EnableStreamSharing)
             {
                 result.ConsumerCount++;
 
@@ -1134,7 +1134,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 // trim trailing period from the folder name
                 var folderName = _fileSystem.GetValidFilename(timer.Name).Trim().TrimEnd('.').Trim();
 
-                if (metadata != null && metadata.ProductionYear.HasValue)
+                if (metadata is not null && metadata.ProductionYear.HasValue)
                 {
                     folderName += " (" + metadata.ProductionYear.Value.ToString(CultureInfo.InvariantCulture) + ")";
                 }
@@ -1238,7 +1238,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 programInfo = GetProgramInfoFromCache(timer.ChannelId, timer.StartDate);
             }
 
-            if (programInfo != null)
+            if (programInfo is not null)
             {
                 CopyProgramInfoToTimerInfo(programInfo, timer);
             }
@@ -1412,7 +1412,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
             var item = GetAffectedBaseItem(Path.GetDirectoryName(path));
 
-            if (item != null)
+            if (item is not null)
             {
                 _logger.LogInformation("Refreshing recording parent {Path}", item.Path);
 
@@ -1444,12 +1444,12 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 path = Path.GetDirectoryName(path);
             }
 
-            if (item != null)
+            if (item is not null)
             {
                 if (item.GetType() == typeof(Folder) && string.Equals(item.Path, parentPath, StringComparison.OrdinalIgnoreCase))
                 {
                     var parentItem = item.GetParent();
-                    if (parentItem != null && parentItem is not AggregateFolder)
+                    if (parentItem is not null && parentItem is not AggregateFolder)
                     {
                         item = parentItem;
                     }
@@ -1569,7 +1569,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         {
             var libraryItem = _libraryManager.FindByPath(timer.RecordingPath, false);
 
-            if (libraryItem != null)
+            if (libraryItem is not null)
             {
                 _libraryManager.DeleteItem(
                     libraryItem,
@@ -1714,7 +1714,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 (program.GetImageInfo(ImageType.Thumb, 0) ?? program.GetImageInfo(ImageType.Primary, 0)) :
                 (program.GetImageInfo(ImageType.Primary, 0) ?? program.GetImageInfo(ImageType.Thumb, 0));
 
-            if (image != null)
+            if (image is not null)
             {
                 try
                 {
@@ -1729,7 +1729,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             if (!program.IsSeries)
             {
                 image = program.GetImageInfo(ImageType.Backdrop, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -1742,7 +1742,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 }
 
                 image = program.GetImageInfo(ImageType.Thumb, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -1755,7 +1755,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 }
 
                 image = program.GetImageInfo(ImageType.Logo, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -2367,13 +2367,13 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                             DtoOptions = new DtoOptions()
                         }).FirstOrDefault() as LiveTvChannel;
 
-                    if (channel != null && !string.IsNullOrWhiteSpace(channel.ExternalId))
+                    if (channel is not null && !string.IsNullOrWhiteSpace(channel.ExternalId))
                     {
                         tempChannelCache[parent.ChannelId] = channel;
                     }
                 }
 
-                if (channel != null || tempChannelCache.TryGetValue(parent.ChannelId, out channel))
+                if (channel is not null || tempChannelCache.TryGetValue(parent.ChannelId, out channel))
                 {
                     channelId = channel.ExternalId;
                 }
@@ -2426,13 +2426,13 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                             DtoOptions = new DtoOptions()
                         }).FirstOrDefault() as LiveTvChannel;
 
-                    if (channel != null && !string.IsNullOrWhiteSpace(channel.ExternalId))
+                    if (channel is not null && !string.IsNullOrWhiteSpace(channel.ExternalId))
                     {
                         tempChannelCache[programInfo.ChannelId] = channel;
                     }
                 }
 
-                if (channel != null || tempChannelCache.TryGetValue(programInfo.ChannelId, out channel))
+                if (channel is not null || tempChannelCache.TryGetValue(programInfo.ChannelId, out channel))
                 {
                     channelId = channel.ExternalId;
                 }
@@ -2626,7 +2626,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             {
                 var configuredDevice = configuredDevices.FirstOrDefault(i => string.Equals(i.DeviceId, device.DeviceId, StringComparison.OrdinalIgnoreCase));
 
-                if (configuredDevice != null && !string.Equals(device.Url, configuredDevice.Url, StringComparison.OrdinalIgnoreCase))
+                if (configuredDevice is not null && !string.Equals(device.Url, configuredDevice.Url, StringComparison.OrdinalIgnoreCase))
                 {
                     _logger.LogInformation("Tuner url has changed from {PreviousUrl} to {NewUrl}", configuredDevice.Url, device.Url);
 
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
index 08534de59..5369c9b3d 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
@@ -208,7 +208,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
             // var audioChannels = 2;
             // var audioStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Audio);
-            // if (audioStream != null)
+            // if (audioStream is not null)
             // {
             //    audioChannels = audioStream.Channels ?? audioChannels;
             // }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
index 80e3e5233..d5a6feb47 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
@@ -36,7 +36,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         [MemberNotNull(nameof(_items))]
         private void EnsureLoaded()
         {
-            if (_items != null)
+            if (_items is not null)
             {
                 return;
             }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
index 40dcca94f..7bbeae866 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
@@ -63,7 +63,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                     }
                 }
             }
-            else if (info.IsMovie && info.ProductionYear != null)
+            else if (info.IsMovie && info.ProductionYear is not null)
             {
                 name += " (" + info.ProductionYear + ")";
             }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
index f612565d1..1dfdfe84d 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
@@ -165,7 +165,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             var timerId = (string?)state ?? throw new ArgumentNullException(nameof(state));
 
             var timer = GetAll().FirstOrDefault(i => string.Equals(i.Id, timerId, StringComparison.OrdinalIgnoreCase));
-            if (timer != null)
+            if (timer is not null)
             {
                 TimerFired?.Invoke(this, new GenericEventArgs<TimerInfo>(timer));
             }
diff --git a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
index 69670e811..7db7ac576 100644
--- a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
+++ b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
@@ -153,7 +153,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                     continue;
                 }
 
-                if (images != null)
+                if (images is not null)
                 {
                     var imageIndex = images.FindIndex(i => i.ProgramId == schedule.ProgramId[..10]);
                     if (imageIndex > -1)
@@ -266,7 +266,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
             }
 
             string episodeTitle = null;
-            if (details.EpisodeTitle150 != null)
+            if (details.EpisodeTitle150 is not null)
             {
                 episodeTitle = details.EpisodeTitle150;
             }
@@ -315,13 +315,13 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
             info.ShowId = showId;
 
-            if (programInfo.VideoProperties != null)
+            if (programInfo.VideoProperties is not null)
             {
                 info.IsHD = programInfo.VideoProperties.Contains("hdtv", StringComparison.OrdinalIgnoreCase);
                 info.Is3D = programInfo.VideoProperties.Contains("3d", StringComparison.OrdinalIgnoreCase);
             }
 
-            if (details.ContentRating != null && details.ContentRating.Count > 0)
+            if (details.ContentRating is not null && details.ContentRating.Count > 0)
             {
                 info.OfficialRating = details.ContentRating[0].Code.Replace("TV", "TV-", StringComparison.Ordinal)
                     .Replace("--", "-", StringComparison.Ordinal);
@@ -333,13 +333,13 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                 }
             }
 
-            if (details.Descriptions != null)
+            if (details.Descriptions is not null)
             {
-                if (details.Descriptions.Description1000 != null && details.Descriptions.Description1000.Count > 0)
+                if (details.Descriptions.Description1000 is not null && details.Descriptions.Description1000.Count > 0)
                 {
                     info.Overview = details.Descriptions.Description1000[0].Description;
                 }
-                else if (details.Descriptions.Description100 != null && details.Descriptions.Description100.Count > 0)
+                else if (details.Descriptions.Description100 is not null && details.Descriptions.Description100.Count > 0)
                 {
                     info.Overview = details.Descriptions.Description100[0].Description;
                 }
@@ -351,12 +351,12 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
                 info.SeriesProviderIds[MetadataProvider.Zap2It.ToString()] = info.SeriesId;
 
-                if (details.Metadata != null)
+                if (details.Metadata is not null)
                 {
                     foreach (var metadataProgram in details.Metadata)
                     {
                         var gracenote = metadataProgram.Gracenote;
-                        if (gracenote != null)
+                        if (gracenote is not null)
                         {
                             info.SeasonNumber = gracenote.Season;
 
@@ -371,13 +371,13 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                 }
             }
 
-            if (details.OriginalAirDate != null)
+            if (details.OriginalAirDate is not null)
             {
                 info.OriginalAirDate = details.OriginalAirDate;
                 info.ProductionYear = info.OriginalAirDate.Value.Year;
             }
 
-            if (details.Movie != null)
+            if (details.Movie is not null)
             {
                 if (!string.IsNullOrEmpty(details.Movie.Year)
                     && int.TryParse(details.Movie.Year, out int year))
@@ -386,7 +386,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                 }
             }
 
-            if (details.Genres != null)
+            if (details.Genres is not null)
             {
                 info.Genres = details.Genres.Where(g => !string.IsNullOrWhiteSpace(g)).ToList();
                 info.IsNews = details.Genres.Contains("news", StringComparison.OrdinalIgnoreCase);
@@ -518,7 +518,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
                 var root = await JsonSerializer.DeserializeAsync<IReadOnlyList<HeadendsDto>>(response, _jsonOptions, cancellationToken).ConfigureAwait(false);
 
-                if (root != null)
+                if (root is not null)
                 {
                     foreach (HeadendsDto headend in root)
                     {
@@ -814,7 +814,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                     Name = string.IsNullOrWhiteSpace(station.Name) ? channelNumber : station.Name
                 };
 
-                if (station.Logo != null)
+                if (station.Logo is not null)
                 {
                     channelInfo.ImageUrl = station.Logo.Url;
                 }
diff --git a/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs b/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
index 1b72a44b4..e874990da 100644
--- a/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
@@ -151,9 +151,9 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                 Overview = program.Description,
                 ProductionYear = program.CopyrightDate?.Year,
                 SeasonNumber = program.Episode?.Series,
-                IsSeries = program.Episode != null,
+                IsSeries = program.Episode is not null,
                 IsRepeat = program.IsPreviouslyShown && !program.IsNew,
-                IsPremiere = program.Premiere != null,
+                IsPremiere = program.Premiere is not null,
                 IsKids = program.Categories.Any(c => info.KidsCategories.Contains(c, StringComparison.OrdinalIgnoreCase)),
                 IsMovie = program.Categories.Any(c => info.MovieCategories.Contains(c, StringComparison.OrdinalIgnoreCase)),
                 IsNews = program.Categories.Any(c => info.NewsCategories.Contains(c, StringComparison.OrdinalIgnoreCase)),
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs b/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
index a92b473b5..9326fbd5c 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
@@ -80,7 +80,7 @@ namespace Emby.Server.Implementations.LiveTv
                 dto.ProgramId = GetInternalProgramId(info.ProgramId).ToString("N", CultureInfo.InvariantCulture);
             }
 
-            if (program != null)
+            if (program is not null)
             {
                 dto.ProgramInfo = _dtoService.GetBaseItemDto(program, new DtoOptions());
 
@@ -98,7 +98,7 @@ namespace Emby.Server.Implementations.LiveTv
                 }
             }
 
-            if (channel != null)
+            if (channel is not null)
             {
                 dto.ChannelName = channel.Name;
 
@@ -168,10 +168,10 @@ namespace Emby.Server.Implementations.LiveTv
                 DtoOptions = new DtoOptions(false)
             }).FirstOrDefault();
 
-            if (librarySeries != null)
+            if (librarySeries is not null)
             {
                 var image = librarySeries.GetImageInfo(ImageType.Thumb, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -185,7 +185,7 @@ namespace Emby.Server.Implementations.LiveTv
                 }
 
                 image = librarySeries.GetImageInfo(ImageType.Backdrop, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -212,10 +212,10 @@ namespace Emby.Server.Implementations.LiveTv
                 Name = string.IsNullOrEmpty(programSeriesId) ? seriesName : null
             }).FirstOrDefault();
 
-            if (program != null)
+            if (program is not null)
             {
                 var image = program.GetImageInfo(ImageType.Primary, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -231,7 +231,7 @@ namespace Emby.Server.Implementations.LiveTv
                 if (dto.ParentBackdropImageTags is null || dto.ParentBackdropImageTags.Length == 0)
                 {
                     image = program.GetImageInfo(ImageType.Backdrop, 0);
-                    if (image != null)
+                    if (image is not null)
                     {
                         try
                         {
@@ -262,10 +262,10 @@ namespace Emby.Server.Implementations.LiveTv
                 DtoOptions = new DtoOptions(false)
             }).FirstOrDefault();
 
-            if (librarySeries != null)
+            if (librarySeries is not null)
             {
                 var image = librarySeries.GetImageInfo(ImageType.Thumb, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -279,7 +279,7 @@ namespace Emby.Server.Implementations.LiveTv
                 }
 
                 image = librarySeries.GetImageInfo(ImageType.Backdrop, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -318,10 +318,10 @@ namespace Emby.Server.Implementations.LiveTv
                 }).FirstOrDefault();
             }
 
-            if (program != null)
+            if (program is not null)
             {
                 var image = program.GetImageInfo(ImageType.Primary, 0);
-                if (image != null)
+                if (image is not null)
                 {
                     try
                     {
@@ -337,7 +337,7 @@ namespace Emby.Server.Implementations.LiveTv
                 if (dto.ParentBackdropImageTags is null || dto.ParentBackdropImageTags.Length == 0)
                 {
                     image = program.GetImageInfo(ImageType.Backdrop, 0);
-                    if (image != null)
+                    if (image is not null)
                     {
                         try
                         {
@@ -460,7 +460,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var channel = _libraryManager.GetItemById(dto.ChannelId);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     info.ChannelId = channel.ExternalId;
                 }
@@ -470,7 +470,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var program = _libraryManager.GetItemById(dto.ProgramId);
 
-                if (program != null)
+                if (program is not null)
                 {
                     info.ProgramId = program.ExternalId;
                 }
@@ -480,7 +480,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var timer = await liveTv.GetSeriesTimer(dto.SeriesTimerId, cancellationToken).ConfigureAwait(false);
 
-                if (timer != null)
+                if (timer is not null)
                 {
                     info.SeriesTimerId = timer.ExternalId;
                 }
@@ -526,7 +526,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var channel = _libraryManager.GetItemById(dto.ChannelId);
 
-                if (channel != null)
+                if (channel is not null)
                 {
                     info.ChannelId = channel.ExternalId;
                 }
@@ -536,7 +536,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var program = _libraryManager.GetItemById(dto.ProgramId);
 
-                if (program != null)
+                if (program is not null)
                 {
                     info.ProgramId = program.ExternalId;
                 }
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
index ea26a2227..7afc7959c 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
@@ -446,7 +446,7 @@ namespace Emby.Server.Implementations.LiveTv
                 isNew = true;
             }
 
-            if (channelInfo.Tags != null)
+            if (channelInfo.Tags is not null)
             {
                 if (!channelInfo.Tags.SequenceEqual(item.Tags, StringComparer.OrdinalIgnoreCase))
                 {
@@ -836,7 +836,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var seriesTimers = await GetSeriesTimersInternal(new SeriesTimerQuery(), cancellationToken).ConfigureAwait(false);
                 var seriesTimer = seriesTimers.Items.FirstOrDefault(i => string.Equals(_tvDtoService.GetInternalSeriesTimerId(i.Id).ToString("N", CultureInfo.InvariantCulture), query.SeriesTimerId, StringComparison.OrdinalIgnoreCase));
-                if (seriesTimer != null)
+                if (seriesTimer is not null)
                 {
                     internalQuery.ExternalSeriesId = seriesTimer.SeriesId;
 
@@ -989,7 +989,7 @@ namespace Emby.Server.Implementations.LiveTv
                 var timer = timerList.FirstOrDefault(i => string.Equals(i.ProgramId, externalProgramId, StringComparison.OrdinalIgnoreCase));
                 var foundSeriesTimer = false;
 
-                if (timer != null)
+                if (timer is not null)
                 {
                     if (timer.Status != RecordingStatus.Cancelled && timer.Status != RecordingStatus.Error)
                     {
@@ -1016,7 +1016,7 @@ namespace Emby.Server.Implementations.LiveTv
 
                 var seriesTimer = seriesTimerList.FirstOrDefault(i => string.Equals(i.SeriesId, externalSeriesId, StringComparison.OrdinalIgnoreCase));
 
-                if (seriesTimer != null)
+                if (seriesTimer is not null)
                 {
                     program.SeriesTimerId = _tvDtoService.GetInternalSeriesTimerId(seriesTimer.Id)
                         .ToString("N", CultureInfo.InvariantCulture);
@@ -1086,7 +1086,7 @@ namespace Emby.Server.Implementations.LiveTv
 
             var coreService = _services.OfType<EmbyTV.EmbyTV>().FirstOrDefault();
 
-            if (coreService != null)
+            if (coreService is not null)
             {
                 await coreService.RefreshSeriesTimers(cancellationToken).ConfigureAwait(false);
                 await coreService.RefreshTimers(cancellationToken).ConfigureAwait(false);
@@ -1280,7 +1280,7 @@ namespace Emby.Server.Implementations.LiveTv
                 {
                     var item = _libraryManager.GetItemById(itemId);
 
-                    if (item != null)
+                    if (item is not null)
                     {
                         _libraryManager.DeleteItem(
                             item,
@@ -1377,7 +1377,7 @@ namespace Emby.Server.Implementations.LiveTv
                 limit = null;
 
                 // var allActivePaths = EmbyTV.EmbyTV.Current.GetAllActiveRecordings().Select(i => i.Path).ToArray();
-                // var items = allActivePaths.Select(i => _libraryManager.FindByPath(i, false)).Where(i => i != null).ToArray();
+                // var items = allActivePaths.Select(i => _libraryManager.FindByPath(i, false)).Where(i => i is not null).ToArray();
 
                 // return new QueryResult<BaseItem>
                 // {
@@ -1517,7 +1517,7 @@ namespace Emby.Server.Implementations.LiveTv
                 dto.CompletionPercentage = pct;
             }
 
-            if (channel != null)
+            if (channel is not null)
             {
                 dto.ChannelName = channel.Name;
 
@@ -1887,7 +1887,7 @@ namespace Emby.Server.Implementations.LiveTv
                 {
                     var currentProgram = programs.FirstOrDefault(i => channel.Id.Equals(i.ChannelId));
 
-                    if (currentProgram != null)
+                    if (currentProgram is not null)
                     {
                         currentProgramsList.Add(currentProgram);
                     }
@@ -1913,7 +1913,7 @@ namespace Emby.Server.Implementations.LiveTv
             ILiveTvService service = null;
             ProgramInfo programInfo = null;
 
-            if (program != null)
+            if (program is not null)
             {
                 service = GetService(program);
 
@@ -2317,7 +2317,7 @@ namespace Emby.Server.Implementations.LiveTv
 
             var providerChannel = EmbyTV.EmbyTV.Current.GetEpgChannelFromTunerChannel(mappings, tunerChannel, providerChannels);
 
-            if (providerChannel != null)
+            if (providerChannel is not null)
             {
                 result.ProviderChannelName = providerChannel.Name;
                 result.ProviderChannelId = providerChannel.Id;
@@ -2390,7 +2390,7 @@ namespace Emby.Server.Implementations.LiveTv
                 .SelectMany(i => i.Locations)
                 .Distinct(StringComparer.OrdinalIgnoreCase)
                 .Select(i => _libraryManager.FindByPath(i, true))
-                .Where(i => i != null && i.IsVisibleStandalone(user))
+                .Where(i => i is not null && i.IsVisibleStandalone(user))
                 .SelectMany(i => _libraryManager.GetCollectionFolders(i))
                 .GroupBy(x => x.Id)
                 .Select(x => x.First())
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs b/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
index 4b7584af3..6a92fc599 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
@@ -42,7 +42,7 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 var activeRecordingInfo = _liveTvManager.GetActiveRecordingInfo(item.Path);
 
-                if (string.IsNullOrEmpty(item.Path) || activeRecordingInfo != null)
+                if (string.IsNullOrEmpty(item.Path) || activeRecordingInfo is not null)
                 {
                     return GetMediaSourcesInternal(item, activeRecordingInfo, cancellationToken);
                 }
@@ -59,7 +59,7 @@ namespace Emby.Server.Implementations.LiveTv
 
             try
             {
-                if (activeRecordingInfo != null)
+                if (activeRecordingInfo is not null)
                 {
                     sources = await EmbyTV.EmbyTV.Current.GetRecordingStreamMediaSources(activeRecordingInfo, cancellationToken)
                         .ConfigureAwait(false);
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
index 2b82f2462..2e1aef072 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
@@ -147,7 +147,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                         var channels = await GetChannels(host, true, cancellationToken).ConfigureAwait(false);
                         var channelInfo = channels.FirstOrDefault(i => string.Equals(i.Id, channelId, StringComparison.OrdinalIgnoreCase));
 
-                        if (channelInfo != null)
+                        if (channelInfo is not null)
                         {
                             return await GetChannelStreamMediaSources(host, channelInfo, cancellationToken).ConfigureAwait(false);
                         }
@@ -187,7 +187,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                     var channels = await GetChannels(host, true, cancellationToken).ConfigureAwait(false);
                     var channelInfo = channels.FirstOrDefault(i => string.Equals(i.Id, channelId, StringComparison.OrdinalIgnoreCase));
 
-                    if (channelInfo != null)
+                    if (channelInfo is not null)
                     {
                         hostsWithChannel.Add(new Tuple<TunerHostInfo, ChannelInfo>(host, channelInfo));
                     }
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
index 04d64e500..5327b3d74 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
@@ -503,7 +503,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
             {
                 var modelInfo = await GetModelInfo(tuner, false, cancellationToken).ConfigureAwait(false);
 
-                if (modelInfo != null && modelInfo.SupportsTranscoding)
+                if (modelInfo is not null && modelInfo.SupportsTranscoding)
                 {
                     if (tuner.AllowHWTranscoding)
                     {
@@ -560,7 +560,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
 
             var mediaSource = GetMediaSource(tunerHost, hdhrId, channel, profile);
 
-            if (hdhomerunChannel != null && hdhomerunChannel.IsLegacyTuner)
+            if (hdhomerunChannel is not null && hdhomerunChannel.IsLegacyTuner)
             {
                 return new HdHomerunUdpStream(
                     mediaSource,
@@ -674,7 +674,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
 
                             var info = await TryGetTunerHostInfo(deviceAddress, cancellationToken).ConfigureAwait(false);
 
-                            if (info != null)
+                            if (info is not null)
                             {
                                 list.Add(info);
                             }
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
index e67b5846a..81eb083f6 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
@@ -37,7 +37,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
         {
             using (var socket = _tcpClient)
             {
-                if (socket != null)
+                if (socket is not null)
                 {
                     _tcpClient = null;
 
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
index 2748794b3..3ae9e256b 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
@@ -35,7 +35,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
             EnableStreamSharing = true;
             UniqueId = Guid.NewGuid().ToString("N", CultureInfo.InvariantCulture);
 
-            if (tuner != null)
+            if (tuner is not null)
             {
                 TunerHostId = tuner.Id;
             }
diff --git a/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs b/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
index 6e1dc725d..9fe51f083 100644
--- a/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
+++ b/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
@@ -71,7 +71,7 @@ namespace Emby.Server.Implementations.MediaEncoder
             }
 
             var libraryOptions = _libraryManager.GetLibraryOptions(video);
-            if (libraryOptions != null)
+            if (libraryOptions is not null)
             {
                 if (!libraryOptions.EnableChapterImageExtraction)
                 {
diff --git a/Emby.Server.Implementations/Net/UdpSocket.cs b/Emby.Server.Implementations/Net/UdpSocket.cs
index c3994fc04..577b79283 100644
--- a/Emby.Server.Implementations/Net/UdpSocket.cs
+++ b/Emby.Server.Implementations/Net/UdpSocket.cs
@@ -74,7 +74,7 @@ namespace Emby.Server.Implementations.Net
         private void OnReceiveSocketAsyncEventArgsCompleted(object sender, SocketAsyncEventArgs e)
         {
             var tcs = _currentReceiveTaskCompletionSource;
-            if (tcs != null)
+            if (tcs is not null)
             {
                 _currentReceiveTaskCompletionSource = null;
 
@@ -98,7 +98,7 @@ namespace Emby.Server.Implementations.Net
         private void OnSendSocketAsyncEventArgsCompleted(object sender, SocketAsyncEventArgs e)
         {
             var tcs = _currentSendTaskCompletionSource;
-            if (tcs != null)
+            if (tcs is not null)
             {
                 _currentSendTaskCompletionSource = null;
 
diff --git a/Emby.Server.Implementations/Playlists/PlaylistManager.cs b/Emby.Server.Implementations/Playlists/PlaylistManager.cs
index d8d4629c1..271c0bc4d 100644
--- a/Emby.Server.Implementations/Playlists/PlaylistManager.cs
+++ b/Emby.Server.Implementations/Playlists/PlaylistManager.cs
@@ -183,7 +183,7 @@ namespace Emby.Server.Implementations.Playlists
 
         private List<BaseItem> GetPlaylistItems(IEnumerable<Guid> itemIds, string playlistMediaType, User user, DtoOptions options)
         {
-            var items = itemIds.Select(i => _libraryManager.GetItemById(i)).Where(i => i != null);
+            var items = itemIds.Select(i => _libraryManager.GetItemById(i)).Where(i => i is not null);
 
             return Playlist.GetPlaylistItems(playlistMediaType, items, user, options);
         }
diff --git a/Emby.Server.Implementations/Plugins/PluginManager.cs b/Emby.Server.Implementations/Plugins/PluginManager.cs
index c1a38d23c..39dc2135d 100644
--- a/Emby.Server.Implementations/Plugins/PluginManager.cs
+++ b/Emby.Server.Implementations/Plugins/PluginManager.cs
@@ -268,7 +268,7 @@ namespace Emby.Server.Implementations.Plugins
                 // If no version is given, return the current instance.
                 var plugins = _plugins.Where(p => p.Id.Equals(id)).ToList();
 
-                plugin = plugins.FirstOrDefault(p => p.Instance != null) ?? plugins.OrderByDescending(p => p.Version).FirstOrDefault();
+                plugin = plugins.FirstOrDefault(p => p.Instance is not null) ?? plugins.OrderByDescending(p => p.Version).FirstOrDefault();
             }
             else
             {
@@ -500,7 +500,7 @@ namespace Emby.Server.Implementations.Plugins
 #pragma warning restore CA1031 // Do not catch general exception types
             {
                 _logger.LogError(ex, "Error creating {Type}", type.FullName);
-                if (plugin != null)
+                if (plugin is not null)
                 {
                     if (ChangePluginState(plugin, PluginStatus.Malfunctioned))
                     {
@@ -523,7 +523,7 @@ namespace Emby.Server.Implementations.Plugins
 
             var predecessor = _plugins.OrderByDescending(p => p.Version)
                 .FirstOrDefault(p => p.Id.Equals(plugin.Id) && p.IsEnabledAndSupported && p.Version != plugin.Version);
-            if (predecessor != null)
+            if (predecessor is not null)
             {
                 return;
             }
@@ -577,7 +577,7 @@ namespace Emby.Server.Implementations.Plugins
                     _logger.LogError(ex, "Error deserializing {Json}.", Encoding.UTF8.GetString(data!));
                 }
 
-                if (manifest != null)
+                if (manifest is not null)
                 {
                     if (!Version.TryParse(manifest.TargetAbi, out var targetAbi))
                     {
diff --git a/Emby.Server.Implementations/ScheduledTasks/ScheduledTaskWorker.cs b/Emby.Server.Implementations/ScheduledTasks/ScheduledTaskWorker.cs
index 25515f778..ee9aa8569 100644
--- a/Emby.Server.Implementations/ScheduledTasks/ScheduledTaskWorker.cs
+++ b/Emby.Server.Implementations/ScheduledTasks/ScheduledTaskWorker.cs
@@ -211,7 +211,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
         {
             get
             {
-                if (CurrentCancellationTokenSource != null)
+                if (CurrentCancellationTokenSource is not null)
                 {
                     return CurrentCancellationTokenSource.IsCancellationRequested
                                ? TaskState.Cancelling
@@ -240,7 +240,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
                 ArgumentNullException.ThrowIfNull(value);
 
                 // Cleanup current triggers
-                if (_triggers != null)
+                if (_triggers is not null)
                 {
                     DisposeTriggers();
                 }
@@ -269,7 +269,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
                 ArgumentNullException.ThrowIfNull(value);
 
                 // This null check is not great, but is needed to handle bad user input, or user mucking with the config file incorrectly
-                var triggerList = value.Where(i => i != null).ToArray();
+                var triggerList = value.Where(i => i is not null).ToArray();
 
                 SaveTriggers(triggerList);
 
@@ -369,7 +369,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
         private async Task ExecuteInternal(TaskOptions options)
         {
             // Cancel the current execution, if any
-            if (CurrentCancellationTokenSource != null)
+            if (CurrentCancellationTokenSource is not null)
             {
                 throw new InvalidOperationException("Cannot execute a Task that is already running");
             }
@@ -391,7 +391,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
 
             try
             {
-                if (options != null && options.MaxRuntimeTicks.HasValue)
+                if (options is not null && options.MaxRuntimeTicks.HasValue)
                 {
                     CurrentCancellationTokenSource.CancelAfter(TimeSpan.FromTicks(options.MaxRuntimeTicks.Value));
                 }
@@ -507,7 +507,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
         private Tuple<TaskTriggerInfo, ITaskTrigger>[] LoadTriggers()
         {
             // This null check is not great, but is needed to handle bad user input, or user mucking with the config file incorrectly
-            var settings = LoadTriggerSettings().Where(i => i != null).ToArray();
+            var settings = LoadTriggerSettings().Where(i => i is not null).ToArray();
 
             return settings.Select(i => new Tuple<TaskTriggerInfo, ITaskTrigger>(i, GetTrigger(i))).ToArray();
         }
@@ -583,7 +583,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
 
             result.Key = ScheduledTask.Key;
 
-            if (ex != null)
+            if (ex is not null)
             {
                 result.ErrorMessage = ex.Message;
                 result.LongErrorMessage = ex.StackTrace;
@@ -617,7 +617,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
                 var startTime = CurrentExecutionStartTime;
 
                 var token = CurrentCancellationTokenSource;
-                if (token != null)
+                if (token is not null)
                 {
                     try
                     {
@@ -631,7 +631,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
                 }
 
                 var task = _currentTask;
-                if (task != null)
+                if (task is not null)
                 {
                     try
                     {
@@ -653,7 +653,7 @@ namespace Emby.Server.Implementations.ScheduledTasks
                     }
                 }
 
-                if (token != null)
+                if (token is not null)
                 {
                     try
                     {
diff --git a/Emby.Server.Implementations/ScheduledTasks/Tasks/ChapterImagesTask.cs b/Emby.Server.Implementations/ScheduledTasks/Tasks/ChapterImagesTask.cs
index da7c8732a..abc203618 100644
--- a/Emby.Server.Implementations/ScheduledTasks/Tasks/ChapterImagesTask.cs
+++ b/Emby.Server.Implementations/ScheduledTasks/Tasks/ChapterImagesTask.cs
@@ -151,7 +151,7 @@ namespace Emby.Server.Implementations.ScheduledTasks.Tasks
                         previouslyFailedImages.Add(key);
 
                         var parentPath = Path.GetDirectoryName(failHistoryPath);
-                        if (parentPath != null)
+                        if (parentPath is not null)
                         {
                             Directory.CreateDirectory(parentPath);
                         }
diff --git a/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs b/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs
index e9b8a8257..d65ac2e5e 100644
--- a/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs
+++ b/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs
@@ -100,7 +100,7 @@ namespace Emby.Server.Implementations.ScheduledTasks.Triggers
         {
             DisposeTimer();
 
-            if (Triggered != null)
+            if (Triggered is not null)
             {
                 _lastStartDate = DateTime.UtcNow;
                 Triggered(this, EventArgs.Empty);
diff --git a/Emby.Server.Implementations/Session/SessionManager.cs b/Emby.Server.Implementations/Session/SessionManager.cs
index a1e3b9dbd..2add9be80 100644
--- a/Emby.Server.Implementations/Session/SessionManager.cs
+++ b/Emby.Server.Implementations/Session/SessionManager.cs
@@ -200,7 +200,7 @@ namespace Emby.Server.Implementations.Session
             {
                 var capabilities = _deviceManager.GetCapabilities(info.DeviceId);
 
-                if (capabilities != null)
+                if (capabilities is not null)
                 {
                     ReportCapabilities(info, capabilities, false);
                 }
@@ -238,7 +238,7 @@ namespace Emby.Server.Implementations.Session
         public void UpdateDeviceName(string sessionId, string reportedDeviceName)
         {
             var session = GetSession(sessionId);
-            if (session != null)
+            if (session is not null)
             {
                 session.DeviceName = reportedDeviceName;
             }
@@ -284,7 +284,7 @@ namespace Emby.Server.Implementations.Session
             var lastActivityDate = session.LastActivityDate;
             session.LastActivityDate = activityDate;
 
-            if (user != null)
+            if (user is not null)
             {
                 var userLastActivityDate = user.LastActivityDate ?? DateTime.MinValue;
 
@@ -351,7 +351,7 @@ namespace Emby.Server.Implementations.Session
             CheckDisposed();
             var session = GetSession(sessionId, false);
 
-            if (session != null)
+            if (session is not null)
             {
                 var key = GetSessionKey(session.Client, session.DeviceId);
 
@@ -377,7 +377,7 @@ namespace Emby.Server.Implementations.Session
                 info.MediaSourceId = info.ItemId.ToString("N", CultureInfo.InvariantCulture);
             }
 
-            if (!info.ItemId.Equals(default) && info.Item is null && libraryItem != null)
+            if (!info.ItemId.Equals(default) && info.Item is null && libraryItem is not null)
             {
                 var current = session.NowPlayingItem;
 
@@ -390,7 +390,7 @@ namespace Emby.Server.Implementations.Session
                     {
                         mediaSource = await GetMediaSource(libraryItem, info.MediaSourceId, info.LiveStreamId).ConfigureAwait(false);
 
-                        if (mediaSource != null)
+                        if (mediaSource is not null)
                         {
                             runtimeTicks = mediaSource.RunTimeTicks;
                         }
@@ -579,7 +579,7 @@ namespace Emby.Server.Implementations.Session
 
             users.AddRange(session.AdditionalUsers
                 .Select(i => _userManager.GetUserById(i.UserId))
-                .Where(i => i != null));
+                .Where(i => i is not null));
 
             return users;
         }
@@ -591,7 +591,7 @@ namespace Emby.Server.Implementations.Session
 
         private void StopIdleCheckTimer()
         {
-            if (_idleTimer != null)
+            if (_idleTimer is not null)
             {
                 _idleTimer.Dispose();
                 _idleTimer = null;
@@ -600,7 +600,7 @@ namespace Emby.Server.Implementations.Session
 
         private async void CheckForIdlePlayback(object state)
         {
-            var playingSessions = Sessions.Where(i => i.NowPlayingItem != null)
+            var playingSessions = Sessions.Where(i => i.NowPlayingItem is not null)
                 .ToList();
 
             if (playingSessions.Count > 0)
@@ -630,7 +630,7 @@ namespace Emby.Server.Implementations.Session
                     }
                 }
 
-                playingSessions = Sessions.Where(i => i.NowPlayingItem != null)
+                playingSessions = Sessions.Where(i => i.NowPlayingItem is not null)
                     .ToList();
             }
 
@@ -643,7 +643,7 @@ namespace Emby.Server.Implementations.Session
         private BaseItem GetNowPlayingItem(SessionInfo session, Guid itemId)
         {
             var item = session.FullNowPlayingItem;
-            if (item != null && item.Id.Equals(itemId))
+            if (item is not null && item.Id.Equals(itemId))
             {
                 return item;
             }
@@ -684,7 +684,7 @@ namespace Emby.Server.Implementations.Session
 
             var users = GetUsers(session);
 
-            if (libraryItem != null)
+            if (libraryItem is not null)
             {
                 foreach (var user in users)
                 {
@@ -777,7 +777,7 @@ namespace Emby.Server.Implementations.Session
             var users = GetUsers(session);
 
             // only update saved user data on actual check-ins, not automated ones
-            if (libraryItem != null && !isAutomated)
+            if (libraryItem is not null && !isAutomated)
             {
                 foreach (var user in users)
                 {
@@ -912,7 +912,7 @@ namespace Emby.Server.Implementations.Session
                 info.MediaSourceId = info.ItemId.ToString("N", CultureInfo.InvariantCulture);
             }
 
-            if (!info.ItemId.Equals(default) && info.Item is null && libraryItem != null)
+            if (!info.ItemId.Equals(default) && info.Item is null && libraryItem is not null)
             {
                 var current = session.NowPlayingItem;
 
@@ -933,7 +933,7 @@ namespace Emby.Server.Implementations.Session
                 }
             }
 
-            if (info.Item != null)
+            if (info.Item is not null)
             {
                 var msString = info.PositionTicks.HasValue ? (info.PositionTicks.Value / 10000).ToString(CultureInfo.InvariantCulture) : "unknown";
 
@@ -945,7 +945,7 @@ namespace Emby.Server.Implementations.Session
                     msString);
             }
 
-            if (info.NowPlayingQueue != null)
+            if (info.NowPlayingQueue is not null)
             {
                 session.NowPlayingQueue = info.NowPlayingQueue;
             }
@@ -957,7 +957,7 @@ namespace Emby.Server.Implementations.Session
             var users = GetUsers(session);
             var playedToCompletion = false;
 
-            if (libraryItem != null)
+            if (libraryItem is not null)
             {
                 foreach (var user in users)
                 {
@@ -1164,7 +1164,7 @@ namespace Emby.Server.Implementations.Session
 
             command.ItemIds = items.Select(i => i.Id).ToArray();
 
-            if (user != null)
+            if (user is not null)
             {
                 if (items.Any(i => i.GetPlayAccess(user) != PlayAccess.Full))
                 {
@@ -1173,13 +1173,13 @@ namespace Emby.Server.Implementations.Session
                 }
             }
 
-            if (user != null
+            if (user is not null
                 && command.ItemIds.Length == 1
                 && user.EnableNextEpisodeAutoPlay
                 && _libraryManager.GetItemById(command.ItemIds[0]) is Episode episode)
             {
                 var series = episode.Series;
-                if (series != null)
+                if (series is not null)
                 {
                     var episodes = series.GetEpisodes(
                             user,
@@ -1429,7 +1429,7 @@ namespace Emby.Server.Implementations.Session
 
             var user = session.AdditionalUsers.FirstOrDefault(i => i.UserId.Equals(userId));
 
-            if (user != null)
+            if (user is not null)
             {
                 var list = session.AdditionalUsers.ToList();
                 list.Remove(user);
@@ -1554,7 +1554,7 @@ namespace Emby.Server.Implementations.Session
                 }
             }
 
-            if (existing != null)
+            if (existing is not null)
             {
                 _logger.LogInformation("Reissuing access token: {Token}", existing.AccessToken);
                 return existing.AccessToken;
@@ -1720,7 +1720,7 @@ namespace Emby.Server.Implementations.Session
 
             var info = _dtoService.GetBaseItemDto(item, dtoOptions);
 
-            if (mediaSource != null)
+            if (mediaSource is not null)
             {
                 info.MediaStreams = mediaSource.MediaStreams.ToArray();
             }
@@ -1761,7 +1761,7 @@ namespace Emby.Server.Implementations.Session
             var session = Sessions.FirstOrDefault(i =>
                 string.Equals(i.DeviceId, deviceId, StringComparison.OrdinalIgnoreCase));
 
-            if (session != null)
+            if (session is not null)
             {
                 session.TranscodingInfo = info;
             }
diff --git a/Emby.Server.Implementations/Session/SessionWebSocketListener.cs b/Emby.Server.Implementations/Session/SessionWebSocketListener.cs
index bab934578..aebb55907 100644
--- a/Emby.Server.Implementations/Session/SessionWebSocketListener.cs
+++ b/Emby.Server.Implementations/Session/SessionWebSocketListener.cs
@@ -94,7 +94,7 @@ namespace Emby.Server.Implementations.Session
         public async Task ProcessWebSocketConnectedAsync(IWebSocketConnection connection, HttpContext httpContext)
         {
             var session = await GetSession(httpContext, connection.RemoteEndPoint?.ToString()).ConfigureAwait(false);
-            if (session != null)
+            if (session is not null)
             {
                 EnsureController(session, connection);
                 await KeepAliveWebSocket(connection).ConfigureAwait(false);
@@ -221,7 +221,7 @@ namespace Emby.Server.Implementations.Session
         {
             lock (_keepAliveLock)
             {
-                if (_keepAliveCancellationToken != null)
+                if (_keepAliveCancellationToken is not null)
                 {
                     _keepAliveCancellationToken.Cancel();
                     _keepAliveCancellationToken.Dispose();
diff --git a/Emby.Server.Implementations/Sorting/DatePlayedComparer.cs b/Emby.Server.Implementations/Sorting/DatePlayedComparer.cs
index ec818253b..453d817c7 100644
--- a/Emby.Server.Implementations/Sorting/DatePlayedComparer.cs
+++ b/Emby.Server.Implementations/Sorting/DatePlayedComparer.cs
@@ -58,7 +58,7 @@ namespace Emby.Server.Implementations.Sorting
         {
             var userdata = UserDataRepository.GetUserData(User, x);
 
-            if (userdata != null && userdata.LastPlayedDate.HasValue)
+            if (userdata is not null && userdata.LastPlayedDate.HasValue)
             {
                 return userdata.LastPlayedDate.Value;
             }
diff --git a/Emby.Server.Implementations/SyncPlay/Group.cs b/Emby.Server.Implementations/SyncPlay/Group.cs
index ef2a4ef77..7d7ea5810 100644
--- a/Emby.Server.Implementations/SyncPlay/Group.cs
+++ b/Emby.Server.Implementations/SyncPlay/Group.cs
@@ -251,7 +251,7 @@ namespace Emby.Server.Implementations.SyncPlay
             GroupName = request.GroupName;
             AddSession(session);
 
-            var sessionIsPlayingAnItem = session.FullNowPlayingItem != null;
+            var sessionIsPlayingAnItem = session.FullNowPlayingItem is not null;
 
             RestartCurrentItem();
 
diff --git a/Emby.Server.Implementations/TV/TVSeriesManager.cs b/Emby.Server.Implementations/TV/TVSeriesManager.cs
index 57fa57c59..967f90b55 100644
--- a/Emby.Server.Implementations/TV/TVSeriesManager.cs
+++ b/Emby.Server.Implementations/TV/TVSeriesManager.cs
@@ -62,7 +62,7 @@ namespace Emby.Server.Implementations.TV
             {
                 var parent = _libraryManager.GetItemById(query.ParentId.Value);
 
-                if (parent != null)
+                if (parent is not null)
                 {
                     parents = new[] { parent };
                 }
@@ -168,7 +168,7 @@ namespace Emby.Server.Implementations.TV
                     return !anyFound && i.LastWatchedDate == DateTime.MinValue;
                 })
                 .Select(i => i.GetEpisodeFunction())
-                .Where(i => i != null);
+                .Where(i => i is not null);
         }
 
         private static string GetUniqueSeriesKey(Episode episode)
@@ -247,23 +247,23 @@ namespace Emby.Server.Implementations.TV
                         DtoOptions = dtoOptions
                     })
                     .Cast<Episode>()
-                    .Where(episode => episode.AirsBeforeSeasonNumber != null || episode.AirsAfterSeasonNumber != null)
+                    .Where(episode => episode.AirsBeforeSeasonNumber is not null || episode.AirsAfterSeasonNumber is not null)
                     .ToList();
 
-                    if (lastWatchedEpisode != null)
+                    if (lastWatchedEpisode is not null)
                     {
                         // Last watched episode is added, because there could be specials that aired before the last watched episode
                         consideredEpisodes.Add(lastWatchedEpisode);
                     }
 
-                    if (nextEpisode != null)
+                    if (nextEpisode is not null)
                     {
                         consideredEpisodes.Add(nextEpisode);
                     }
 
                     var sortedConsideredEpisodes = _libraryManager.Sort(consideredEpisodes, user, new[] { (ItemSortBy.AiredEpisodeOrder, SortOrder.Ascending) })
                         .Cast<Episode>();
-                    if (lastWatchedEpisode != null)
+                    if (lastWatchedEpisode is not null)
                     {
                         sortedConsideredEpisodes = sortedConsideredEpisodes.SkipWhile(episode => !episode.Id.Equals(lastWatchedEpisode.Id)).Skip(1);
                     }
@@ -271,7 +271,7 @@ namespace Emby.Server.Implementations.TV
                     nextEpisode = sortedConsideredEpisodes.FirstOrDefault();
                 }
 
-                if (nextEpisode != null)
+                if (nextEpisode is not null)
                 {
                     var userData = _userDataManager.GetUserData(user, nextEpisode);
 
@@ -284,7 +284,7 @@ namespace Emby.Server.Implementations.TV
                 return nextEpisode;
             }
 
-            if (lastWatchedEpisode != null)
+            if (lastWatchedEpisode is not null)
             {
                 var userData = _userDataManager.GetUserData(user, lastWatchedEpisode);
 
diff --git a/Emby.Server.Implementations/Updates/InstallationManager.cs b/Emby.Server.Implementations/Updates/InstallationManager.cs
index 84489b646..5e897833e 100644
--- a/Emby.Server.Implementations/Updates/InstallationManager.cs
+++ b/Emby.Server.Implementations/Updates/InstallationManager.cs
@@ -168,7 +168,7 @@ namespace Emby.Server.Implementations.Updates
             var result = new List<PackageInfo>();
             foreach (RepositoryInfo repository in _config.Configuration.PluginRepositories)
             {
-                if (repository.Enabled && repository.Url != null)
+                if (repository.Enabled && repository.Url is not null)
                 {
                     // Where repositories have the same content, the details from the first is taken.
                     foreach (var package in await GetPackages(repository.Name ?? "Unnamed Repo", repository.Url, true, cancellationToken).ConfigureAwait(true))
@@ -181,7 +181,7 @@ namespace Emby.Server.Implementations.Updates
                             var version = package.Versions[i];
 
                             var plugin = _pluginManager.GetPlugin(package.Id, version.VersionNumber);
-                            if (plugin != null)
+                            if (plugin is not null)
                             {
                                 await _pluginManager.GenerateManifest(package, version.VersionNumber, plugin.Path, plugin.Manifest.Status).ConfigureAwait(false);
                             }
@@ -199,7 +199,7 @@ namespace Emby.Server.Implementations.Updates
                             continue;
                         }
 
-                        if (existing != null)
+                        if (existing is not null)
                         {
                             // Assumption is both lists are ordered, so slot these into the correct place.
                             MergeSortedList(existing.Versions, package.Versions);
@@ -222,7 +222,7 @@ namespace Emby.Server.Implementations.Updates
             Guid id = default,
             Version? specificVersion = null)
         {
-            if (name != null)
+            if (name is not null)
             {
                 availablePackages = availablePackages.Where(x => x.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
             }
@@ -232,7 +232,7 @@ namespace Emby.Server.Implementations.Updates
                 availablePackages = availablePackages.Where(x => x.Id.Equals(id));
             }
 
-            if (specificVersion != null)
+            if (specificVersion is not null)
             {
                 availablePackages = availablePackages.Where(x => x.Versions.Any(y => y.VersionNumber.Equals(specificVersion)));
             }
@@ -260,11 +260,11 @@ namespace Emby.Server.Implementations.Updates
             var availableVersions = package.Versions
                 .Where(x => string.IsNullOrEmpty(x.TargetAbi) || Version.Parse(x.TargetAbi) <= appVer);
 
-            if (specificVersion != null)
+            if (specificVersion is not null)
             {
                 availableVersions = availableVersions.Where(x => x.VersionNumber.Equals(specificVersion));
             }
-            else if (minVersion != null)
+            else if (minVersion is not null)
             {
                 availableVersions = availableVersions.Where(x => x.VersionNumber >= minVersion);
             }
@@ -495,7 +495,7 @@ namespace Emby.Server.Implementations.Updates
                 var compatibleVersions = GetCompatibleVersions(pluginCatalog, plugin.Name, plugin.Id, minVersion: plugin.Version);
                 var version = compatibleVersions.FirstOrDefault(y => y.Version > plugin.Version);
 
-                if (version != null && CompletedInstallations.All(x => !x.Id.Equals(version.Id)))
+                if (version is not null && CompletedInstallations.All(x => !x.Id.Equals(version.Id)))
                 {
                     yield return version;
                 }
@@ -567,7 +567,7 @@ namespace Emby.Server.Implementations.Updates
             await PerformPackageInstallation(package, plugin?.Manifest.Status ?? PluginStatus.Active, cancellationToken).ConfigureAwait(false);
             _logger.LogInformation("Plugin {Action}: {PluginName} {PluginVersion}", plugin is null ? "installed" : "updated", package.Name, package.Version);
 
-            return plugin != null;
+            return plugin is not null;
         }
     }
 }