diff --git a/Emby.Server.Implementations/HttpServer/WebSocketConnection.cs b/Emby.Server.Implementations/HttpServer/WebSocketConnection.cs
index 5f25f69801..0eca2a6080 100644
--- a/Emby.Server.Implementations/HttpServer/WebSocketConnection.cs
+++ b/Emby.Server.Implementations/HttpServer/WebSocketConnection.cs
@@ -180,7 +180,7 @@ namespace Emby.Server.Implementations.HttpServer
             }
 
             WebSocketMessage<object>? stub;
-            long bytesConsumed = 0;
+            long bytesConsumed;
             try
             {
                 stub = DeserializeWebSocketMessage(buffer, out bytesConsumed);
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
index 1f02acfa3d..d2f0334394 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
@@ -84,7 +84,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
             Logger.LogInformation("Opening HDHR UDP Live stream from {Host}", uri.Host);
 
             var remoteAddress = IPAddress.Parse(uri.Host);
-            IPAddress localAddress = null;
+            IPAddress localAddress;
             using (var tcpClient = new TcpClient())
             {
                 try
diff --git a/Jellyfin.Api/Controllers/LibraryController.cs b/Jellyfin.Api/Controllers/LibraryController.cs
index 4eb979d838..f1b9c2f671 100644
--- a/Jellyfin.Api/Controllers/LibraryController.cs
+++ b/Jellyfin.Api/Controllers/LibraryController.cs
@@ -732,7 +732,7 @@ namespace Jellyfin.Api.Controllers
             else
             {
                 // For non series and movie types these columns are typically null
-                isSeries = null;
+                // isSeries = null;
                 isMovie = null;
                 includeItemTypes.Add(item.GetBaseItemKind());
             }
diff --git a/Jellyfin.Api/Controllers/VideoHlsController.cs b/Jellyfin.Api/Controllers/VideoHlsController.cs
index ef25db8c93..36643e464c 100644
--- a/Jellyfin.Api/Controllers/VideoHlsController.cs
+++ b/Jellyfin.Api/Controllers/VideoHlsController.cs
@@ -365,7 +365,7 @@ namespace Jellyfin.Api.Controllers
             }
             else if (string.Equals(segmentFormat, "mp4", StringComparison.OrdinalIgnoreCase))
             {
-                var outputFmp4HeaderArg = string.Empty;
+                string outputFmp4HeaderArg;
                 if (OperatingSystem.IsWindows())
                 {
                     // on Windows, the path of fmp4 header file needs to be configured
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
index 2997731001..e63874f21e 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
@@ -107,9 +107,7 @@ namespace MediaBrowser.Controller.LiveTv
         {
             if (!string.IsNullOrEmpty(Number))
             {
-                double number = 0;
-
-                if (double.TryParse(Number, NumberStyles.Any, CultureInfo.InvariantCulture, out number))
+                if (double.TryParse(Number, NumberStyles.Any, CultureInfo.InvariantCulture, out double number))
                 {
                     return string.Format(CultureInfo.InvariantCulture, "{0:00000.0}", number) + "-" + (Name ?? string.Empty);
                 }
diff --git a/MediaBrowser.LocalMetadata/Images/LocalImageProvider.cs b/MediaBrowser.LocalMetadata/Images/LocalImageProvider.cs
index de505b686a..7dc6149f4e 100644
--- a/MediaBrowser.LocalMetadata/Images/LocalImageProvider.cs
+++ b/MediaBrowser.LocalMetadata/Images/LocalImageProvider.cs
@@ -196,7 +196,7 @@ namespace MediaBrowser.LocalMetadata.Images
                 added = AddImage(files, images, "logo", imagePrefix, isInMixedFolder, ImageType.Logo);
                 if (!added)
                 {
-                    added = AddImage(files, images, "clearlogo", imagePrefix, isInMixedFolder, ImageType.Logo);
+                    AddImage(files, images, "clearlogo", imagePrefix, isInMixedFolder, ImageType.Logo);
                 }
             }
 
@@ -213,7 +213,7 @@ namespace MediaBrowser.LocalMetadata.Images
 
                 if (!added)
                 {
-                    added = AddImage(files, images, "disc", imagePrefix, isInMixedFolder, ImageType.Disc);
+                    AddImage(files, images, "disc", imagePrefix, isInMixedFolder, ImageType.Disc);
                 }
             }
             else if (item is Video || item is BoxSet)
@@ -227,7 +227,7 @@ namespace MediaBrowser.LocalMetadata.Images
 
                 if (!added)
                 {
-                    added = AddImage(files, images, "discart", imagePrefix, isInMixedFolder, ImageType.Disc);
+                    AddImage(files, images, "discart", imagePrefix, isInMixedFolder, ImageType.Disc);
                 }
             }
 
@@ -243,7 +243,7 @@ namespace MediaBrowser.LocalMetadata.Images
                 added = AddImage(files, images, "landscape", imagePrefix, isInMixedFolder, ImageType.Thumb);
                 if (!added)
                 {
-                    added = AddImage(files, images, "thumb", imagePrefix, isInMixedFolder, ImageType.Thumb);
+                    AddImage(files, images, "thumb", imagePrefix, isInMixedFolder, ImageType.Thumb);
                 }
             }
 
diff --git a/MediaBrowser.Providers/MediaInfo/SubtitleScheduledTask.cs b/MediaBrowser.Providers/MediaInfo/SubtitleScheduledTask.cs
index cce71b0673..58651d42a0 100644
--- a/MediaBrowser.Providers/MediaInfo/SubtitleScheduledTask.cs
+++ b/MediaBrowser.Providers/MediaInfo/SubtitleScheduledTask.cs
@@ -78,21 +78,18 @@ namespace MediaBrowser.Providers.MediaInfo
                 string[] subtitleDownloadLanguages;
                 bool skipIfEmbeddedSubtitlesPresent;
                 bool skipIfAudioTrackMatches;
-                bool requirePerfectMatch;
 
                 if (libraryOptions.SubtitleDownloadLanguages == null)
                 {
                     subtitleDownloadLanguages = options.DownloadLanguages;
                     skipIfEmbeddedSubtitlesPresent = options.SkipIfEmbeddedSubtitlesPresent;
                     skipIfAudioTrackMatches = options.SkipIfAudioTrackMatches;
-                    requirePerfectMatch = options.RequirePerfectMatch;
                 }
                 else
                 {
                     subtitleDownloadLanguages = libraryOptions.SubtitleDownloadLanguages;
                     skipIfEmbeddedSubtitlesPresent = libraryOptions.SkipSubtitlesIfEmbeddedSubtitlesPresent;
                     skipIfAudioTrackMatches = libraryOptions.SkipSubtitlesIfAudioTrackMatches;
-                    requirePerfectMatch = libraryOptions.RequirePerfectSubtitleMatch;
                 }
 
                 foreach (var lang in subtitleDownloadLanguages)