Move MQTT v5 to previous versions

Author: dominicbetts

articles/iot-hub/.openpublishing.redirection.iot-hub.json

@@ -1387,12 +1387,12 @@
     },
     {
       "source_path_from_root": "/articles/iot-hub/iot-hub-mqtt-5-reference.md",
-      "redirect_url": "/azure/iot/iot-mqtt-5-preview-reference",
+      "redirect_url": "/previous-versions/azure/iot/iot-mqtt-5-preview-reference",
       "redirect_document_id": true
     },
     {
       "source_path_from_root": "/articles/iot-hub/iot-hub-mqtt-5.md",
-      "redirect_url": "/azure/iot/iot-mqtt-5-preview",
+      "redirect_url": "/previous-versions/azure/iot/iot-mqtt-5-preview",
       "redirect_document_id": true
     },
     {

articles/iot-hub/iot-hub-preview-mode.md

@@ -66,10 +66,10 @@ Do *not* use an IoT hub in preview mode for production. Preview mode is intended
 - We can't guarantee the normal [IoT Hub SLA](https://azure.microsoft.com/support/legal/sla/iot-hub/v1_2/) - do not use for production.
 
 > [!TIP]
-> Preview mode isn't required for [device streams](iot-hub-device-streams-overview.md) and [distributed tracing](iot-hub-distributed-tracing.md). To use these older preview features, follow their documentation as normal. 
+> Preview mode isn't required for [device streams](iot-hub-device-streams-overview.md) and [distributed tracing](iot-hub-distributed-tracing.md). To use these older preview features, follow their documentation as normal.
 
 ## Next steps
 
-- To preview the MQTT 5 support, see [IoT Hub MQTT 5 support overview (preview)](../iot/iot-mqtt-5-preview.md)
+- To preview the MQTT 5 support, see [IoT Hub MQTT 5 support overview (preview)](/previous-versions/azure/iot/iot-mqtt-5-preview)
 - To preview the ECC server certificate, see [Elliptic Curve Cryptography (ECC) server TLS certificate (preview)](iot-hub-tls-support.md#elliptic-curve-cryptography-ecc-server-tls-certificate)
 - To preview TLS fragment size negotiation, see [TLS maximum fragment length negotiation (preview)](iot-hub-tls-support.md#tls-maximum-fragment-length-negotiation)

articles/iot/.openpublishing.redirection.iot.json

@@ -104,6 +104,16 @@
       "source_path_from_root": "/articles/iot/concepts-eclipse-threadx-security-practices.md",
       "redirect_url": "https://github.com/eclipse-threadx/rtos-docs",
       "redirect_document_id": false
+    },
+    {
+      "source_path": "articles/iot/iot-mqtt-5-preview.md",
+      "redirect_url": "/previous-versions/azure/iot/iot-mqtt-5-preview",
+      "redirect_document_id": false
+    },
+    {
+      "source_path": "articles/iot/iot-mqtt-5-preview-reference.md",
+      "redirect_url": "/previous-versions/azure/iot/iot-mqtt-5-preview-reference",
+      "redirect_document_id": false
     }
   ]
 }

articles/iot/TOC.yml

@@ -119,12 +119,6 @@ items:
           href: iot-mqtt-connect-to-iot-hub.md
         - name: Use MQTT with DPS
           href: iot-mqtt-connect-to-iot-dps.md
-        - name: MQTT 5 support (preview)
-          items:
-          - name: MQTT 5 overview
-            href: iot-mqtt-5-preview.md
-          - name: MQTT 5 API reference
-            href: iot-mqtt-5-preview-reference.md
 
   - name: Resources
     items: