From 49cc2f78990d2b78c0dabea327ddd79c8f90e2ef Mon Sep 17 00:00:00 2001
From: JPVenson <github@jpb.email>
Date: Thu, 21 May 2026 19:27:55 +0200
Subject: [PATCH] Modernize version display in UI (#16862)

Modernize version display in UI
---
 Jellyfin.Server/ServerSetupApp/SetupServer.cs        | 10 +++++++++-
 Jellyfin.Server/ServerSetupApp/index.mstemplate.html |  4 ++--
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/Jellyfin.Server/ServerSetupApp/SetupServer.cs b/Jellyfin.Server/ServerSetupApp/SetupServer.cs
index 05975929db..37bb1abe71 100644
--- a/Jellyfin.Server/ServerSetupApp/SetupServer.cs
+++ b/Jellyfin.Server/ServerSetupApp/SetupServer.cs
@@ -90,6 +90,13 @@ public sealed class SetupServer : IDisposable
         var fileTemplate = await File.ReadAllTextAsync(Path.Combine(AppContext.BaseDirectory, "ServerSetupApp", "index.mstemplate.html")).ConfigureAwait(false);
         _startupUiRenderer = (await ParserOptionsBuilder.New()
             .WithTemplate(fileTemplate)
+            .WithFormatter(
+            (Version version, int arg) =>
+            {
+                // version type does not for some stupid reason implement IFormattable which morestachio relies on for ToString support therefor we need to do it manually.
+                return version.ToString(arg);
+            },
+            "ToString")
             .WithFormatter(
                 (StartupLogTopic logEntry, IEnumerable<StartupLogTopic> children) =>
                 {
@@ -237,6 +244,7 @@ public sealed class SetupServer : IDisposable
                                         });
                                     });
 
+                                    var version = typeof(Emby.Server.Implementations.ApplicationHost).Assembly.GetName().Version!;
                                     app.Run(async (context) =>
                                     {
                                         context.Response.StatusCode = (int)HttpStatusCode.ServiceUnavailable;
@@ -250,7 +258,7 @@ public sealed class SetupServer : IDisposable
                                             {
                                                 { "isInReportingMode", _isUnhealthy },
                                                 { "retryValue", retryAfterValue },
-                                                { "version", typeof(Emby.Server.Implementations.ApplicationHost).Assembly.GetName().Version! },
+                                                { "version", version },
                                                 { "logs", startupLogEntries },
                                                 { "networkManagerReady", networkManager is not null },
                                                 { "localNetworkRequest", networkManager is not null && context.Connection.RemoteIpAddress is not null && networkManager.IsInLocalNetwork(context.Connection.RemoteIpAddress) }
diff --git a/Jellyfin.Server/ServerSetupApp/index.mstemplate.html b/Jellyfin.Server/ServerSetupApp/index.mstemplate.html
index 890a77619d..5706ce1fac 100644
--- a/Jellyfin.Server/ServerSetupApp/index.mstemplate.html
+++ b/Jellyfin.Server/ServerSetupApp/index.mstemplate.html
@@ -173,9 +173,9 @@
         <header class="flex-row">
 
             {{^IF isInReportingMode}}
-            <p>Jellyfin Server {{version}} still starting. Please wait.</p>
+            <p>Jellyfin Server {{version.ToString(2)}} still starting. Please wait.</p>
             {{#ELSE}}
-            <p>Jellyfin Server has encountered an error and was not able to start.</p>
+            <p>Jellyfin Server {{version.ToString(2)}} has encountered an error and was not able to start.</p>
             {{/ELSE}}
             {{/IF}}