From fc1455e0d8d71475e272c764eb17746159a0e30b Mon Sep 17 00:00:00 2001
From: Andy Butland <abutland73@gmail.com>
Date: Sat, 3 May 2025 17:28:44 +0200
Subject: [PATCH 1/2] Bumped version to 15.4.1.

---
 version.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/version.json b/version.json
index 54cdf6d288..3780adcd49 100644
--- a/version.json
+++ b/version.json
@@ -1,6 +1,6 @@
 {
   "$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/main/src/NerdBank.GitVersioning/version.schema.json",
-  "version": "15.4.0",
+  "version": "15.4.1",
   "assemblyVersion": {
     "precision": "build"
   },

From 0ad020f0ce62ab32eae127262efb31acd1137790 Mon Sep 17 00:00:00 2001
From: Andy Butland <abutland73@gmail.com>
Date: Mon, 5 May 2025 07:38:31 +0200
Subject: [PATCH 2/2] Restored interface methods on obsolete
 IBackgroundTaskQueue (#19223)

* Restore interface methods on obsolete IBackgroundTaskQueue.

* Fixed typos in comment.
---
 src/Umbraco.Core/HostedServices/IBackgroundTaskQueue.cs  | 2 +-
 .../HostedServices/IBackgroundTaskQueue.cs               | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Umbraco.Core/HostedServices/IBackgroundTaskQueue.cs b/src/Umbraco.Core/HostedServices/IBackgroundTaskQueue.cs
index 0fef380e8f..de51cd45e0 100644
--- a/src/Umbraco.Core/HostedServices/IBackgroundTaskQueue.cs
+++ b/src/Umbraco.Core/HostedServices/IBackgroundTaskQueue.cs
@@ -9,7 +9,7 @@ namespace Umbraco.Cms.Core.HostedServices;
 public interface IBackgroundTaskQueue
 {
     /// <summary>
-    ///     Enqueue a work item to be executed on in the background.
+    ///     Enqueue a work item to be executed in the background.
     /// </summary>
     void QueueBackgroundWorkItem(Func<CancellationToken, Task> workItem);
 
diff --git a/src/Umbraco.Infrastructure/HostedServices/IBackgroundTaskQueue.cs b/src/Umbraco.Infrastructure/HostedServices/IBackgroundTaskQueue.cs
index 983af4be9a..8e4a6f6a23 100644
--- a/src/Umbraco.Infrastructure/HostedServices/IBackgroundTaskQueue.cs
+++ b/src/Umbraco.Infrastructure/HostedServices/IBackgroundTaskQueue.cs
@@ -9,4 +9,13 @@ namespace Umbraco.Cms.Infrastructure.HostedServices;
 [Obsolete("This has been relocated into Umbraco.Cms.Core. This definition in Umbraco.Cms.Infrastructure is scheduled for removal in Umbraco 17.")]
 public interface IBackgroundTaskQueue : Core.HostedServices.IBackgroundTaskQueue
 {
+    /// <summary>
+    ///     Enqueue a work item to be executed in the background.
+    /// </summary>
+    void QueueBackgroundWorkItem(Func<CancellationToken, Task> workItem);
+
+    /// <summary>
+    ///     Dequeue the first item on the queue.
+    /// </summary>
+    Task<Func<CancellationToken, Task>?> DequeueAsync(CancellationToken cancellationToken);
 }