added additional upgrade instructions

Author: Donna-Marie Smith

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2024.9.25161-to-2025.3/multiple-server-with-ha/_index.md

@@ -4,3 +4,7 @@ linkTitle: "Multiple Server - With HA"
 description: "Upgrade instructions for multiple on-premise servers with high availability (HA)."
 weight: 10
 ---
+
+{{% alert title="Warning" color="warning" %}}
+This upgrade guide is only applicable if upgrading from 2024.9.25161.
+{{% /alert %}}

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2025.1-to-2025.3/multiple-server-with-ha/_index.md

@@ -4,3 +4,7 @@ linkTitle: "Multiple Server - With HA"
 description: "Upgrade instructions for multiple on-premise servers with high availability (HA)."
 weight: 10
 ---
+
+{{% alert title="Warning" color="warning" %}}
+Due to breaking changes required for upgrading RabbitMQ from version 3 to version 4 the Application Servers need to be reinstalled rather than upgraded. As a result packages will need to be republished and Config Store data will need to be backed up and restored. Other data stored in Reliable Collections (e.g., data storage collections and semaphores) will be lost.
+{{% /alert %}}

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2025.1-to-2025.3/multiple-server-with-ha/pre-upgrade.md

@@ -13,8 +13,15 @@ This guide describes how to perform the steps required before starting the upgra
 
 {{< section "/upgrade/2025.3/pre-upgrade/multi-server/make-artefacts-available.md">}}
 
+## Backup Config Store Data
+
+If using the {{% ctx %}} Config Store, the data will need to be backed up.
+
+For further assistance, please raise a case in the [{{% ctx %}} Service Portal][].
+
 ## Next Steps?
 
 1. [Upgrade][]
 
+[{{% ctx %}} Service Portal]: {{< url path="Cortex.ServicePortal.MainDoc" >}}
 [Upgrade]: {{< url path="Cortex.Guides.UpgradeGuides.UpgradeCortex.2025.1to2025.3.MultipleServerWithHA.Upgrade" >}}

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2025.1-to-2025.3/multiple-server-with-ha/upgrade/upgrade-application-and-loadbalancer-servers.md

@@ -9,6 +9,10 @@ weight: 30
 
 This guide describes how to upgrade the Application Servers and Load Balancer Server from 2025.1 to 2025.3. Please ensure that the [Pre-Upgrade][PreUpgrade] steps have been completed before starting this upgrade.
 
+{{% alert title="Warning" color="warning" %}}
+Due to breaking changes required for upgrading RabbitMQ from version 3 to version 4 the Application Servers need to be reinstalled rather than upgraded. As a result packages will need to be republished and Config Store data will need to be backed up and restored. Other data stored in Reliable Collections (e.g., data storage collections and semaphores) will be lost.
+{{% /alert %}}
+
 ## Configure Upgrade Script
 
 1. In the `Cortex Innovation 2025.3 - App Server Install Scripts\Upgrade Application Server` folder, locate the `Cortex.Innovation.Upgrade.ps1` script and open it with a text editor.

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2025.1-to-2025.3/multiple-server-with-ha/upgrade/upgrade-web-application-server/upgrade-gateway.md

@@ -17,6 +17,45 @@ This guide describes how to upgrade {{% ctx %}} Gateway from 2025.1 to 2025.3. P
 
 {{< section "/upgrade/2025.3/upgrade-web-application-server/run-gateway-script.md" >}}
 
+## Delete Old Execution Services
+
+   {{< alert type="note" title="Note" >}} This only needs to happen for upgrading to this release version as breaking changes were introduced as part of the RabbitMQ upgrade.{{< /alert >}}
+
+1. Open a web browser.
+1. Navigate to `https://server.domain.com:9080/Explorer`, where `server.domain.com` is the fully qualified domain name of one of the application servers. Replace `9080` with new `httpGatewayEndpointPort` value if it was changed during configuration of the original installation.
+1. Expand `Cluster` then `Applications` then `Cortex.Innovation.Execution`.
+1. For all old execution applications:
+    * Click on the drop down menu and select `Delete Application`. Confirm application deletion by following the on-screen instructions.
+    * Give this a few minutes. If the application does not delete:
+        * Expand `Nodes`
+            * For each node:
+                * Expand the node and select the application that matches the engine version number of the application that is being attempted to be deleted.
+                * Expand each level up to and including `Code Packages`.
+                * Click on the drop down menu for `Code` and select `Restart`. Confirm application restart by following the on-screen instructions.
+            * Give this a few minutes. Once all nodes have been restarted the application should be deleted and disappear from the list of applications.
+
+Repeat the above instructions for the  `Flow Debugger`. In step 2 `server.domain.com` is the fully qualified domain name of the web application server.
+
+## Republish Packages
+
+   {{< alert type="note" title="Note" >}} This only needs to happen for upgrading to this release version as breaking changes were introduced as part of the RabbitMQ upgrade.{{< /alert >}}
+
+1. Log in to Gateway with a user that has the `Admin` role.
+1. Click on the `Admin` charm, then `Packages`.
+1. In the `Package Definitions` grid, select `Is Published` filter option on the `Is Published` column to show all published packages.
+1. For each published package version:
+    * Select the package.
+    * Click  `Unpublish` at the bottom of the `Definition` tab and click `Unpublish` on the confirmation pop-up dialog. A success message should appear. If it doesn't it means that there is a problem with the configuration in the `web.config` file for {{% ctx %}} Gateway, or the Application Services aren't healthy
+    * Click `Create New Version` then click `Save` and wait for the new version to be created.
+    * Click `Publish`. A success message should appear. If it doesn't it means that there is a problem with the configuration in the `web.config` file for {{% ctx %}} Gateway, or the Application Services aren't healthy.
+    * Sometimes the list of published packages in the `Package Definitions` grid disappears. To fix, set the `Is Published` filter in the `Package Definitions` grid to blank option and then set the filter to `Is Published` option again to show all published packages.
+
+## Restore Config Store Data
+
+If using the {{% ctx %}} Config Store, the data will need to be restored.
+
+For further assistance, please raise a case in the [{{% ctx %}} Service Portal][].
+
 ## Preserve installation files
 
 {{< section "/preserve-installation-files.md" >}}
@@ -25,5 +64,6 @@ This guide describes how to upgrade {{% ctx %}} Gateway from 2025.1 to 2025.3. P
 
 1. [Upgrade {{% ctx %}} Interaction Portal][Upgrade CIP]
 
+[{{% ctx %}} Service Portal]: {{< url path="Cortex.ServicePortal.MainDoc" >}}
 [Flow Debugger upgrade]: {{< url path="Cortex.Guides.UpgradeGuides.UpgradeCortex.2025.1to2025.3.MultipleServerWithHA.UpgradeDebugger" >}}
 [Upgrade CIP]: {{< url path="Cortex.Guides.UpgradeGuides.UpgradeCortex.2025.1to2025.3.MultipleServerWithHA.UpgradeCIP" >}}

content/en/docs/2025.3/Guides/upgrade-guides/upgrade-cortex/2025.1-to-2025.3/single-server-without-ha/upgrade/upgrade-web-application-server.md

@@ -0,0 +1,29 @@
+---
+title: "Upgrade Web Application Server"
+linkTitle: "Upgrade Web Application Server"
+description: "Information about upgrading the Web Application Server from 2025.1 to 2025.3."
+weight: 30
+---
+
+# {{% param title %}}
+
+This guide describes how to upgrade {{% ctx %}} Gateway from 2025.1 to 2025.3. Please ensure that the [Upgrade Application Server][] has been completed before starting this upgrade.
+
+## Configure Upgrade Script
+
+{{< section "/upgrade/2025.3/upgrade-web-application-server/configure-gateway-script.md" >}}
+
+## Run Upgrade Script
+
+{{< section "/upgrade/2025.3/upgrade-web-application-server/run-gateway-script.md" >}}
+
+## Preserve installation files
+
+{{< section "/preserve-installation-files.md" >}}
+
+## Next Steps?
+
+1. [Try It Out][]
+
+[Try It Out]: {{< url path="Cortex.Guides.UpgradeGuides.UpgradeCortex.2025.1to2025.3.SingleServerWithoutHA.TryItOut" >}}
+[Upgrade Application Server]: {{< url path="Cortex.Guides.UpgradeGuides.UpgradeCortex.2025.1to2025.3.SingleServerWithoutHA.UpgradeApplicationServer" >}}