From b03029c8a038b2f1f7eaef4107763109fc90fb40 Mon Sep 17 00:00:00 2001
From: Daniel Marbach <danielmarbach@users.noreply.github.com>
Date: Mon, 16 Mar 2026 10:28:22 +0100
Subject: [PATCH] Upgrade to deprecation changes in NServiceBus.RabbitMQ 11.1.0

---
 src/Directory.Packages.props                                   | 2 +-
 .../RabbitMQTransportExtensions.cs                             | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index 05ba8b9ca5..af2fb72352 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -44,7 +44,7 @@
     <PackageVersion Include="NServiceBus.Metrics" Version="6.0.0" />
     <PackageVersion Include="NServiceBus.Metrics.ServiceControl" Version="6.0.0" />
     <PackageVersion Include="NServiceBus.Persistence.NonDurable" Version="3.0.0" />
-    <PackageVersion Include="NServiceBus.RabbitMQ" Version="11.0.0" />
+    <PackageVersion Include="NServiceBus.RabbitMQ" Version="11.1.0" />
     <PackageVersion Include="NServiceBus.SagaAudit" Version="6.0.0" />
     <PackageVersion Include="NServiceBus.Testing" Version="10.0.1" />
     <PackageVersion Include="NServiceBus.Transport.AzureServiceBus" Version="6.1.0" />
diff --git a/src/ServiceControl.Transports.RabbitMQ/RabbitMQTransportExtensions.cs b/src/ServiceControl.Transports.RabbitMQ/RabbitMQTransportExtensions.cs
index ebf285839c..b4dc699228 100644
--- a/src/ServiceControl.Transports.RabbitMQ/RabbitMQTransportExtensions.cs
+++ b/src/ServiceControl.Transports.RabbitMQ/RabbitMQTransportExtensions.cs
@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Data.Common;
 using System.Linq;
+using global::RabbitMQ.Client;
 using NServiceBus;
 
 static class RabbitMQTransportExtensions
@@ -40,7 +41,7 @@ public static void ApplySettingsFromConnectionString(this RabbitMQTransport tran
         if (dictionary.TryGetValue("UseExternalAuthMechanism", out var useExternalAuthMechanismString))
         {
             _ = bool.TryParse(useExternalAuthMechanismString, out var useExternalAuthMechanism);
-            transport.UseExternalAuthMechanism = useExternalAuthMechanism;
+            transport.AuthMechanisms = [new ExternalMechanismFactory()];
         }
     }
 }